Wacker Chemie AG

Hanns-Seidel-Platz 4 , 81737 München
Germany

Telephone +49 89 6279-0
Fax +49 89 6279-1770
info@wacker.com

Trade fair hall

  • Hall 6 / A10
 Interactive Plan

Hall map

K 2016 hall map (Hall 6): stand A10

Fairground map

K 2016 fairground map: Hall 6

Our range of products

Product categories

  • 01  Raw materials, auxiliaries
  • 01.01  Thermoplastics
  • 01.01.010  Bioplastics
  • 01.01.010.12  Compounds/Blends

Compounds/Blends

  • 01  Raw materials, auxiliaries
  • 01.02  Thermoplastic elastomers
  • 01.02.014  Other thermoplastic elastomers

Other thermoplastic elastomers

  • 01  Raw materials, auxiliaries
  • 01.03  Resins and compounds
  • 01.03.011  Casting resins

Casting resins

  • 01  Raw materials, auxiliaries
  • 01.03  Resins and compounds
  • 01.03.017  Hybrid-Polymer, inorganicorganic

Hybrid-Polymer, inorganicorganic

  • 01  Raw materials, auxiliaries
  • 01.03  Resins and compounds
  • 01.03.042  Silicone resin moulding compounds

Silicone resin moulding compounds

  • 01  Raw materials, auxiliaries
  • 01.05  Rubbers
  • 01.05.022  Silicone rubber (SI)

Silicone rubber (SI)

  • 01  Raw materials, auxiliaries
  • 01.05  Rubbers
  • 01.05.023  Silicone rubber 02-componemtic, liquid, incl. auxiliaries

Silicone rubber 02-componemtic, liquid, incl. auxiliaries

  • 01  Raw materials, auxiliaries
  • 01.05  Rubbers
  • 01.05.024  Silicone rubber MVQ rigid incl. Auxiliaries

Silicone rubber MVQ rigid incl. Auxiliaries

  • 01  Raw materials, auxiliaries
  • 01.05  Rubbers
  • 01.05.025  Silicone rubber room temperature curing, 02-comp., incl. auxiliaries

Silicone rubber room temperature curing, 02-comp., incl. auxiliaries

  • 01  Raw materials, auxiliaries
  • 01.07  Coating compounds
  • 01.07.011  Silicone elastomers (LSR a.RTV 2K) incl. auxiliaries

Silicone elastomers (LSR a.RTV 2K) incl. auxiliaries

  • 01  Raw materials, auxiliaries
  • 01.08  Adhesives and glues
  • 01.08.007  Rubber to Metal Bonding Agents or Primers and Bonding Agents for Rubber to Metal (bonding agent or adhesive systems)

Rubber to Metal Bonding Agents or Primers and Bonding Agents for Rubber to Metal (bonding agent or adhesive systems)

  • 01  Raw materials, auxiliaries
  • 01.08  Adhesives and glues
  • 01.08.018  Textil finishes

Textil finishes

  • 01  Raw materials, auxiliaries
  • 01.09  Paint resins
  • 01.09.029  Silicones

Silicones

  • 01  Raw materials, auxiliaries
  • 01.10  Additives
  • 01.10.002  Additives, other

Additives, other

  • 01  Raw materials, auxiliaries
  • 01.10  Additives
  • 01.10.017  Antifoam agents

Antifoam agents

  • 01  Raw materials, auxiliaries
  • 01.10  Additives
  • 01.10.060  Coupling agents

Coupling agents

  • 01  Raw materials, auxiliaries
  • 01.10  Additives
  • 01.10.116  Processing auxiliaries

Processing auxiliaries

  • 01  Raw materials, auxiliaries
  • 01.11  Fillers
  • 01.11.020  Fillers and reinforcement
  • 01.11.020.03  Pyrogenic silica

Pyrogenic silica

  • 01  Raw materials, auxiliaries
  • 01.13  Starting materials, intermediate, polymerisation auxiliaries
  • 01.13.041  Silanes

Silanes

  • 01  Raw materials, auxiliaries
  • 01.13  Starting materials, intermediate, polymerisation auxiliaries
  • 01.13.042  Siloxanes

Siloxanes

  • 01  Raw materials, auxiliaries
  • 01.14  Others
  • 01.14.004  Embedding compounds

Embedding compounds

  • 01  Raw materials, auxiliaries
  • 01.14  Others
  • 01.14.005  Electrical insulation compounds

Electrical insulation compounds

  • 01  Raw materials, auxiliaries
  • 01.14  Others
  • 01.14.007  Jointing fillers

Jointing fillers

  • 01  Raw materials, auxiliaries
  • 01.14  Others
  • 01.14.008  Impregnating agents

Impregnating agents

  • 01  Raw materials, auxiliaries
  • 01.14  Others
  • 01.14.024  Composite materials

Composite materials

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.02  Machinery and plant for processing
  • 03.02.010  Machines and equipment for additive manufacturing (3D printing)
  • 03.02.010.01  Machines and equipment for rapid prototyping

Machines and equipment for rapid prototyping

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.02  Machinery and plant for processing
  • 03.02.010  Machines and equipment for additive manufacturing (3D printing)
  • 03.02.010.03  Machines for generative application

Machines for generative application

Company news

Date

Topic

Download

Jul 20, 2016

WACKER Unveils New Electrically Conductive Silicone Rubber Dispersion for the Cable Industry

WACKER, the Munich-based chemical group, will present a novel electrically conductive silicone rubber dispersion at the 20th International Trade Fair for Plastics and Rubber K 2016. POWERSIL® 403 has been developed for manufacturing the outer conductive film on cable accessories for transmission and distribution cables. The product yields a conductive coating characterized by high elasticity, good mechanical properties and scrub resistance. This makes the dispersion suitable even for cable fittings to be installed via cold-shrink processes. The product contains no aromatic compounds such as toluene.

In the transmission and distribution industry, cable joints and connectors are coated on the outside with an electrically conductive material. The purpose of this conductive film is to minimize the electric load on the insulating layer and, in so doing, ensure that the fittings can be operated safely for long periods of time. The conductive material is applied in a thin layer as a liquid dispersion, after which it cures to form a solid material. Cable accessories used in the transmission and distribution industry include cable joints and terminations.
The new POWERSIL® 403 silicone rubber dispersion likewise forms this kind of electrically conductive film. The two-component formu­lation contains addition-curing silicone rubber, which adheres well to the insulating silicone substrate while forming a flexible film. Elongation at break is roughly 650 percent for this formulation, and its tear strength is 20 newtons per millimeter. This means that a conductive film made from POWERSIL® 403 can withstand extreme elongation – without cracking – such as occurs during the production and installation of cable accessories suitable for cold-shrink processes.
Tiny carbon-black particles are what make POWERSIL® 403 electrically conductive. During the curing process, these particles combine with the silicone elastomer to form an abrasion-resistant, conductive layer of carbon black that is largely unaffected by the mechanical stress that can arise during packaging, transport or installation. 
The product also meets increasingly frequent demands for formula­tions that contain no aromatics and, as such, are more user friendly. POWERSIL® 403 is free of aromatic solvents such as toluene. The low-viscosity liquid can be easily applied by spraying, dipping or brushing. Its electrical properties also make the dispersion suitable for use in antistatic coatings for textiles.

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jul 20, 2016

WACKER Showcases UV-fluorescent Pigment Paste for Liquid Silicone Rubber

WACKER, the Munich-based chemical group, will be presenting its new silicone pigment paste ELASTOSIL® Color Paste FL UV Fluorescent at the 20th International Trade Fair for Plastics and Rubber K 2016. The paste was designed for the fluorescent marking of addition-curing silicone rubber. Silicone molded parts or coatings pigmented with the new paste shine a deep blue-violet when irradiated with UV light. Silicone processors can utilize this property to develop computer-controlled quality control systems in manufacturing.

With ELASTOSIL® Color Paste FL UV Fluorescent, the Munich-based chemical company is expanding its portfolio of pigment pastes. The new product is a pourable, translucent pigment dispersion that appears a pale yellow color in daylight. It contains an organic pigment that is highly fluorescent under ultraviolet light. This pigment is excited to emit light at a wavelength of 365 nanometers, emitting blue-violet light with a wavelength of 430 nanometers. The high effectiveness of the pigment means that generally only 0.5 to 2 percent of the pigment paste is required to provide the silicone rubber with a fluorescent marking. 
The liquid component of the dispersion is a silicone fluid, as is also used in liquid and other addition-curing silicone rubber compounds. It contains vinyl groups and is therefore reactive. This silicone fluid is fully integrated in the resulting polymer network during curing. 
As the silicone fluid becomes part of the network, it cannot migrate out of the cured products of the pigmented silicone rubber. The pigment paste does not influence either the mechanical and thermal properties of the cured rubber products nor the adhesive properties of self-adhesive formulated silicones. Cured rubber products pigmented with ELASTOSIL® Color Paste FL UV Fluorescent only differ from non-pigmented cured products in their UV fluorescence. This makes the pigment paste a suitable UV marker for liquid silicone rubbers and other addition-curing silicone rubber compounds. 
Processing is simple. When a liquid silicone rubber is injection molded, the pigment paste is added to the mixer via an additional color line in the injection-molding machine. For pourable, addition-curing silicone rubbers, it is stirred into the rubber mixture. The UV-fluorescent pigment paste can be mixed with any other pigment paste in the ELASTOSIL® Color Paste FL product range. 
WACKER’s new pigment paste addresses a key trend in the silicone industry. In view of the increasing requirements for flawlessness of the supplied products, more and more silicone processors are striving to develop automated quality control including complete testing of the entire range of produced silicone molded parts or silicone coatings. This kind of 100-percent testing, particularly for large-scale production, previously entailed considerable personnel costs. 
The new pigment paste ELASTOSIL® Color Paste FL UV Fluorescent now provides a cost-effective alternative. It makes it possible to provide the cured rubber products with a fluorescent mark, paving the way for computer-controlled visual testing. The UV pigment paste can help, for example, computer-aided camera systems to determine, fully automatically, whether the injection-molded silicone component is exactly in the intended locations. The same applies to silicone-coated textiles: optical test systems can be fully automated to test whether the coating is bubble-free and entirely covers the textile web. It renders manual visual inspections unnecessary. 

Visit WACKER at K 2016 in Hall 6, Booth A10. 

More Less

Jul 20, 2016

WACKER Presents Highly Transparent Liquid Silicone Rubber for Optical Elements with Low Volatile Content

WACKER, the Munich-based chemical group, will present a new generation of highly transparent liquid silicone rubbers for lighting technologies at the 20th International Trade Fair for Plastics and Rubber K 2016. LUMISIL® LR 7601 makes it possible to produce crystal-clear optical lenses and coupling elements for high heat and light exposure. The product is predominantly characterized by a significantly lower volatile content, which especially benefits processors. The vulcanizates only need to be thermally postcured for sensitive applications. Due to the low volatile content the postcuring time can be reduced for these applications, and the molded part suffers significantly less shrinkage. LUMISIL® LR 7601 is suitable for lenses, sensors and optical coupling elements in lighting technologies and can be processed cost effectively in large-scale injection molding processes.

WACKER already hit the headlines at the K show three years ago with its highly transparent liquid silicone rubber for optical applica­tions. Thanks to a special formulation concept, the company succeeded in formulating silicones in such a way that they can transmit visible light virtually unobstructed and withstand thermal stressing of up to 200°C even for long periods. 
These benefits are also offered by the new liquid silicone rubber LUMISIL® LR 7601 that WACKER will showcase at K 2016. Like its predecessor, the product offers outstanding transparency and heat resistance, making LUMISIL® LR 7601 superior to many other materials. Whereas polycarbonate and polymethyl methacrylate gradually yellow when exposed to heat, artificial or natural light, or ultraviolet radiation, the new silicone elastomer remains crystal clear, even under continuous exposure. The refractive index for all Shore hardness values is 1.41.
However, LUMISIL® LR 7601 offers yet another advantage. The silicone rubber has significantly lower volatile components than the previous product. These are largely removed during production, which in many cases virtually eliminates the need for thermal postcuring. If postcuring is still necessary, it can be substantially shortened. Moreover, linear shrinkage after postcuring is just half that of the previous product. Consequently, there are considerably fewer geometrical changes. 
LUMISIL® LR 7601 has a comparably low viscosity, which remains largely unchanged by shear forces. For this reason the grades – in contrast to conventional liquid silicones – can be injection molded very easily at low shear rates. They fulfill all material requirements that play a key role in the manufacture of optical elements. 
Preferred applications for LUMISIL® LR 7601 are in lighting techno­logy, for example, optical lenses. The resultant lens bodies can direct and shape a lamp’s light as is increasingly the case in modern vehicle headlamps. In adaptive front lighting systems, optical elements made of LUMISIL® LR 7601 can help to ensure that the road is optimally illuminated under any traffic conditions. 
LUMISIL® LR 7601 is extremely heat and radiation resistant. It is therefore ideal for applications with high-performance LEDs, which become very hot in continuous operation and emit very high-energy light. In combination with light emitting diodes, entirely new designs and housing structures are possible. Incidentally, this not only applies to car headlamps, but also to the development of energy-efficient and cost-effective lighting solutions, for example, in the general lighting field.
LUMISIL® LR 7601 covers four types with hardness values between 50 and 80 Shore A. The liquid silicone rubber can be readily pro­cessed by injection molding. This makes it possible to cost-effectively produce even delicately structured molded parts on a large scale. Lenses made from LUMISIL® LR 7601 are resistant to aging and weathering, they are electrically insulating, water-repellent and low-temperature flexible.

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jul 20, 2016

WACKER Presents High-Transparency LED-Encapsulants with High-Refractive-Index

At the 20th International Trade Fair for Rubber and Plastics K2016, WACKER, the Munich-based chemical company, will be showcasing high performance silicones for the encapsulation of light emitting diodes (LED) and optical components. When cured, LUMISIL® 590 and LUMISIL® 591 silicone encapsulants transform into highly transparent elastomers with a high refractive index. The products withstand high operating temperatures and strong light radiation without yellowing. That makes them ideal encapsulants for LEDs with a high light efficiency. They also protect the LED chip against corrosive gases, which greatly extends the compo­nent’s service life. The silicone compounds can be processed in industrial metering processes such as dispensing.

LUMISIL® 590 and LUMISIL® 591 are highly transparent, addition-curing silicone encapsulants. They form elastomers with a refractive index of 1.53 which ranks them among the high-refractive-index (HRI) encapsulants. Compounds of this kind are particularly suitable for manufacturing high performance LEDs. The HRI silicone protects the sensitive LED chip against mechanical influences and corrosive gases. At the same time, its high refractive index enables optimum light efficiency. 
Semiconductor chips used to generate light in LEDs usually have a high refractive index. To maximize the amount of light emitted by the LED chip that can pass through the encapsulation, the refractive index of the chip and encapsulant must be roughly the same value. 
This is exactly what the new silicone encapsulants offer: their refractive index is 1.53, which is roughly the value of most LED chips. Due to this, LUMISIL® 590 and LUMISIL® 591 improve the efficiency of the LED significantly. What’s more, the highly transparent silicones are almost completely transparent for light in the visible spectral range (approx. 400 to 700 nm). Also, they do not yellow, even when radiation is extremely intense. Transmission tests with LUMISIL® 590 show that a one-millimeter-thick layer lets over 91 percent of visible light through. 
LUMISIL® 590 and LUMISIL® 591 protect the LED chip reliably against environmental influences. Corrosive gases such as hydrogen sulfide can damage the LED chip and reduce its performance. Tests show that LED chips encapsulated with LUMISIL® 590 and LUMISIL® 591 are protected against such damage longer and have a prolonged service life. 
Both encapsulants are easy to process, heat-resistant and absolutely tack-free after curing. They also exhibit optimized flow and crosslinking characteristics. With a viscosity of the mix of 2,000 and 2,500 mPa*s respectively, they enable efficient, cost-effective pro­cessing. Both products are suitable for encapsulating the LED chip via contact-free dispensing processes. LUMISIL® 590 and LUMISIL® 591 form cured rubber grades of varying hardness. With a hardness of 65 Shore A, LUMISIL® 590 is relatively soft, whereas LUMISIL® 591 is formulated to be significantly harder at 40 Shore D.
LUMISIL®
The LUMISIL® product line comprises optical high-performance silicones for LED manufacturers with high requirements. WACKER offers highly transparent silicone elastomers for applications with a high (HRI) and normal (NRI) refractive index. All products enable very efficient, cost-effective production and exhibit optimized flow and crosslinking characteristics, as well as high photostability. As an encapsulation material, they protect the LED chip reliably against environmental influences and thereby extend its service life. 

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jul 20, 2016

WACKER Presents Toluene-free Primer for Silicone Composites

WACKER, the Munich-based chemical company, will showcase a new adhesion promoter for silicone rubber at K 2016, the 20th International Trade Fair for Plastics and Rubber. WACKER® Primer G 790 toluene free is used to achieve reliable adhesion between addition-curing silicone rubbers and hard substrates such as aluminum, stainless steel or glass. In comparison with many conventional adhesion promoters, the primer contains no toluene or other aromatic compounds.

The adhesion promoter WACKER® Primer G 790 has proven indispensable in many industrial sectors and applications for the pretreatment of metallic and hard non-metallic substrates. It helps to achieve a strong and permanent adhesive bond to liquid silicone rubbers and other addition-curing silicone rubber compounds.
At K 2016, WACKER will launch a further development of the tried and tested adhesion promoter. WACKER® Primer G 790 toluene free has the same adhesion-promoting effect as its predecessor. It is also suitable for pretreating hard substrates such as aluminum, stainless steel, glass, epoxy resin and glass-fiber-reinforced plastic. However, the product differs in terms of the solvent composition. It contains no toluene or other aromatic compounds. 
WACKER® Primer G 790 toluene free – a low-viscosity, yellowish solution – contains reactive silicone resins and organic silicates as adhesion-promoting active substances. A mixture of aliphatic hydro­carbons is used as a solvent. The solution is applied in extremely thin layers in a spraying or dipping process, or by brush on to the thoroughly cleaned substrates. Once the solvent has evaporated, the active substances crosslink under exposure to atmospheric moisture and form a silicone resin film that is chemically bonded to the substrate. A silicone rubber compound applied thereafter anchors itself to the film during its curing, resulting in a durable and stable metal, glass or plastic-silicone bond. 
The possibility of forming a stable bond is essential when manufacturing two-component products. The substrate primed with the adhesion promoter can be used as the hard component in hard/soft combinations. It can therefore be inserted in the molding tool of an injection-molding machine, for example, and overmolded with a liquid silicone rubber. A sufficiently strong bond between silicone and the hard component can only be established after applying a prime coat.

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jul 20, 2016

WACKER Presents New Self-Adhesive Liquid Silicone Rubber with High Elastic Recovery

WACKER, the Munich-based chemical group, will be at the 20th International Trade Fair for Plastics and Rubber K 2016, presenting a new self-adhesive liquid silicone rubber that cures within a very short time to form an oil-bleeding elastomer with high elastic recovery. ELASTOSIL® LR 3072/50 is particularly suitable as a sealing in two-component molded parts. Typical areas of application include automotive electron­ics and electrical systems, where the product is used in single-wire seals and connector housings with radial seals applied by injection molding.

The new product expands WACKER’s ELASTOSIL® LR 3072 product line to include a material with high elastic recovery and extraordinarily low compression set. This means that when a molded part made from the silicone elastomer is compressed and then relaxes, deformation is kept to a minimum thanks to its elasticity and elastic recovery. 
The compression set and thus long-term deformation of vulcanized parts made of ELASTOSIL® LR 3072/50 are only ten percent after 22 hours of storage at 125 degrees Celsius. They also retain their function at high temperatures. In addition, cured rubber products made from ELASTOSIL® LR 3072/50 remain flexible and elastic at temperatures as low as -50 degrees Celsius. The new liquid silicone rubber grade is thus ideal for sealing applications in the engine compartment or car body. 
With a Shore A hardness value of 50, cured rubber products made from the new oil-bleeding silicone are harder and, as a result, somewhat more rigid than existing grades in this product line. ELASTOSIL® LR 3072/50 reliably seals cable bushings and connector housings with lamellar radial seals, where the housing halves are designed to have a gap. 
As a markedly shear-thinning, rapidly curing compound, the new liquid silicone is suitable for use in highly automated injection molding processes. Because it is formulated to be self-adhesive, ELASTOSIL® LR 3072/50 bonds to a number of thermoplastics, such as polyamide (PA) and polybutylene terephthalate (PBT), which are frequently used as the hard component of two-component molded parts. The silicone forms an outstanding bond without a primer coat – even on several metals. This means that the liquid silicone rubber can be molded directly onto these types of substrates in an injection-molding machine, provided the machine and the mold technology are suitable. The result is a fast, affordable means of mass producing thermoplastic/silicone-elastomer or metal/silicone-elastomer composite parts. 
Once it has cured and adhesion has developed, ELASTOSIL® LR 3072/50 forms a thin film of silicone fluid, which lubricates the surface of the rubber. This means, for example, that customers can easily thread a cable through an injection-molded, single-wire seal made of ELASTOSIL® LR 3072.  

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jul 20, 2016

WACKER Develops Liquid Silicone Rubber with Improved Oil Resistance for the Automotive Industry

WACKER, the Munich-based chemical group, will be presenting a new liquid silicone rubber designed especially for use in automotive engineering applications at the 20th International Trade Fair for Plastics and Rubber K 2016 . In addition to its excellent mechanical properties, ELASTOSIL® LR 3016/65 features enhanced media resistance. Even when in contact with hot motor oil for long periods of time, molded parts made of ELASTOSIL® LR 3016/65 retain important material properties – a feature that helps them meet the specifications of leading automakers. The new silicone grade can be made into O‑rings and other seals quickly and easily by injection
molding.

Inside an automobile, a large number of seals and other elastomeric components are in constant contact with engine oil. At the high temperatures that necessarily develop during operation, substances arise in the oil that attack seal materials and result in chemical degradation. Hence, conventional elastomers are generally unsuitable for these types of applications, as they would gradually soften and lose their elasticity.
With the introduction of ELASTOSIL® LR 3016/65, WACKER now offers a liquid silicone rubber that does an even better job of standing up to hot motor oil than previous silicones. The product is formulated in such a way that it reliably counters aggressive components of the oil. Fillers and additives contribute both to excellent long-term oil resistance and to very good mechanical properties in parts molded from ELASTOSIL® LR 3016/65. 
Laboratory tests have shown that parts molded from the new liquid silicone rubber meet important specifications set down by car manufacturers. Properties such as hardness, elongation at break, tensile strength and tear strength are in full compliance with standards, even after several weeks of storage in motor oil kept at 150 degrees Celsius. Current specifications for seal materials, for example, call for a tear strength of at least 2 N/mm before or 1.5 N/mm after storage in hot motor oil (according to ISO 34-1 A). The tear strength of molded parts made of ELASTOSIL® LR 3016/65 before and after the oil storage test is 13 N/mm and 12 N/mm respectively, which is well within established standards. 
The Shore A hardness value for cured rubber products made of ELASTOSIL® LR 3016/65 is 65. As an extremely fast-curing grade of liquid silicone rubber with good flow properties, this product allows manufacturers to cost-effectively make oil-resistant molded parts via injection molding on an industrial scale. Even small parts with delicate structures can be produced with a high level of precision and virtually error free. 

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jul 20, 2016

WACKER Presents Hydrolysis- and Steam-Resistant Liquid Silicone Rubber

Munich, June 28, 2016 – At K 2016, WACKER, the Munich-based chemical company, is unveiling ELASTOSIL® LR 3020/60, a liquid silicone rubber that cures to form a steam-resistant and hydro­lytically stable elastomer. The fast-curing rubber is suitable for highly automated injection-molding and therefore enables cost-effective large-scale production of molded seals and other products that need to permanently or regularly withstand hot water or steam. Fields of application include sanitary engineer­ing, heating systems and power plants.  

ELASTOSIL® LR 3020/60 is a two-component liquid silicone rubber compound, which is optimized for injection molding and vulcanizes rapidly via a platinum-catalyzed addition reaction. A special feature is its high steam-resistance once the silicone is cured. Standard silicone elastomers can only withstand superheated steam for short periods, making suitable for such applications to a very limited extent. The reason for this is that silicone elastomers generally hydrolyze under these conditions, i.e. are chemically decomposed by water. This reduces their elastic recovery under pressure. As a result, the seal leaks. 
This cannot happen with the new ELASTOSIL® LR 3020/60 grade. It is largely resistant to hydrolysis and even retains its elasticity in persistent contact with superheated steam. Measurements show that postcured test specimens made from ELASTOSIL® LR 3020/60 stored for 21 days in autoclaves with steam at 150 degrees Celsius have a compression set of 62 percent. They thus retain sufficient high elastic recovery for sealing purposes. The other mechanical properties of the elastomer, such as elasticity and tensile strength, have been substantially improved. 
Compared with all currently available hot-water- and steam-resistant solid silicone rubbers, ELASTOSIL® LR 3020/60 also provides processing advantages. As a fast-curing liquid silicone rubber, the grade allows particularly short cycle times during injection molding. Elastomer products can be precision manufactured with virtually no waste. Thus, for the first time ever, plastics processors can use a hydrolytically stable silicone rubber for large-scale production, enabling the cost-effective manufacture of seals. 
Molded parts made from ELASTOSIL® LR 3020/60 are suitable for applications that are regularly exposed to hot water and steam. Typical examples include molded gaskets for domestic appliances such as espresso machines or steam irons, medical equipment, sanitary engineering, heating and power plant technology. 
The cured products of the new silicone provide a further advantage: they are more resistant than standard liquid silicones to many of the conventional disinfectants and cleaning agents used in medical engineering. Postcured vulcanizates of the new silicone grade are food-compatible and meet the requirements of the German Federal Institute for Risk Assessment (BfR) and the US Food and Drug Administration (FDA). They also meet the requirements of the hygiene guidelines of the German Federal Environment Agency (UBA) for seals and equipment in warm and cold water applications. 

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jul 20, 2016

WACKER Develops New Liquid Silicone Rubber with Extremely High Shore Hardness

Munich, June 28, 2016 – At the 20th International Trade Fair for Plastics and Rubber K 2016, WACKER, the Munich-based chemical company, will be unveiling a novel liquid silicone rubber grade that achieves an extremely high 90 Shore A hard­ness after curing. The product, which is called ELASTOSIL® LR 3003/90, is processed by injection molding and cures rapidly to form an exceptionally hard and high-modulus elastomer. This makes the material ideal for cost-effective, large-scale produc­tion of dimensionally stable silicone products. It can also be used as the hard component in hard/soft combinations.
The ELASTOSIL® LR 3003 series already offers a selection of liquid silicone rubber grades with Shore A hardness values ranging from 3 to 85. With the new ELASTOSIL® LR 3003/90, WACKER for the first time presents a product that outperforms all other liquid silicone rubber in hardness and rigidity. 

The cured material almost falls into the transition zone between an elastomer and a thermoset. On the one hand, the cured rubber still possesses a certain degree of elasticity, while, on the other hand, it features very high dimensional stability for an elastomer. It has a hardness of 90 Shore A or – measured with a Shore-D tester – 33 Shore D. Alongside this hardness, which was previously unattained with liquid silicone rubber, ELASTOSIL® LR 3003/90 features an exceptionally high modulus. It is thus more rigid than the cured products of all previous liquid silicone rubber grades.
Due to its high level of hardness and rigidity, the new silicone grade can be used in many applications as an alternative to thermoplastics or thermosets. The product is suitable as a hard substrate in two-component molded parts, for example. It is also possible to manufacture hard/soft combinations that consist of ELASTOSIL® LR 3003/90 and other, softer silicone layers. Molded parts made of ELASTOSIL® LR 3003/90 offer good resistance to aging and heat, weathering and UV.
ELASTOSIL® LR 3003/90 can be processed with high precision and virtually without waste by injection molding. Rubber processors can achieve short cycle times and thus high productivity. Compared to standard silicone elastomers of lower hardness, the surfaces of molded parts made of ELASTOSIL® LR 3003/90 display relatively low surface resistance. The lack of a non-slip effect opens up potential technical applications that had previously not been possible with liquid silicones. The low frictional resistance is particularly beneficial when silicone parts and parts made of metal or plastic move against each other, as is the case with mechanical seals, for example.
ELASTOSIL® LR 3003/90 is transparent and can be pigmented in any color. The cured rubber features good mechanical properties and can be used at temperatures ranging from -55 to +210 degrees Celsius. 

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jul 5, 2016

WACKER Presents New VINNEX® Additives for Enhanced Bioplastics

Munich, June 28, 2016 – WACKER, the Munich-based chemical group, will be introducing novel VINNEX® polymer grades for bioplastic compounds at the 20th International Trade Fair for Plastics and Rubber (K 2016). The new additives can consider­ably enhance the processing and property profile of biopoly­esters or blends with starch. For example, VINNEX® 2526 greatly simplifies the manufacture of highly transparent, rigid polylactic acid (PLA) films. The VINNEX® 2522, 2523 and 2525 products significantly improve processing and heat-sealing properties in paper coating with PLA or PBS (polybutylene succinate). VINNEX® 8880 optimizes the flow properties in the melt for injec­tion-molding applications and 3D printing, so that temperature-sensitive and complex items can also readily be produced and energy can even be saved during processing. 
The polyvinyl-acetate-based grades of WACKER’s VINNEX® product line now make the production of highly transparent, biodegradable PLA and/or PBS films better and easier. The addition of VINNEX® 2526, for example, optimizes both melt and bubble stability during the respective extrusion processes. Blister packs can be produced at lower temperatures and with a more uniform thickness distribution. Moreover, VINNEX® further enhances the already good printability of biopolyester films. In paper cups with PLA or PBS, the additive optimizes the water-repellent coating, so that the cups are in no way inferior to their polyethylene-film counterparts.
During processing, the low-molecular VINNEX® 2523 and VINNEX® 2522 grades increase the initial adhesion of the PLA film to paper. In addition, WACKER’s additives improve the heat-sealing properties, so that a particularly strong bond forms between the paper and PLA. With the aid of certain VINNEX® grades, film-coated paper cups can thus also be composted and recycled more readily – making them a more sustainable end product despite their single use.
The WACKER additives can optimize items produced by injection molding or 3D printing, too. New VINNEX® 8880 enhances the flow properties of the polymer melt, for example. Since this lowers the viscosity, heat-sensitive or highly complex items can also be manufactured. At the same time, more fillers – such as cellulose fibers, starch or inorganic fillers – can be incorporated into the melt. 

About VINNEX® for Bioplastics
Bioplastics, in particular biopolyester, are highly promising, sustainable alternatives to petroleum-based products. They are based on renewable raw materials and, ideally, biodegradable. They still only account for around two percent of plastics, but their annual growth rate now averages at 20 percent (CAGR), according to the nova-Institute. Especially in packaging, many end products – such as films, blister packs, bags or shaped trays – can be made from biobased polymers or polymer blends. VINNEX®, a polyvinyl-acetate-based additive from WACKER, not only allows biopolyester and other additives to be combined more readily, it also optimizes their processing and property profile. Furthermore, these high-performance blends can be processed using conventional machines. VINNEX® significantly expands the processing and application range of biopolyesters. WACKER sells its VINNEX® products as microgranules, granules or powders.
Visit WACKER at K 2016 in Düsseldorf. You’ll find us in Hall 6, Booth A10.

More Less

Jul 4, 2016

ACEO® Imagine Series K WACKER Presents the First Industrial 3D Printer for Silicones

Munich, June 28, 2016 – WACKER, the Munich-based chemical company, will be showcasing a world first at K 2016, the 20th International Trade Fair for Plastics and Rubber: the first industrial 3D printer for silicones. The high-tech device – called ACEO® Imagine Series K – will be in operation in Hall 6, Booth A10 throughout the entire tradeshow. WACKER’s 3D printing process for the additive manufacturing of silicone rubber parts has been the subject of discussions for months. Up to now, there is no mature 3D printing technology available for silicones. The process developed by WACKER is considered a milestone in additive manufacturing. K 2016 will take place in Düsseldorf, Germany, from October 19 to 26, 2016. 
The 3D printer that will debut at the K tradeshow represents the first printer generation to industrial purposes. The ACEO® Imagine Series K prints considerably faster and is more compact in design. “The printer is based on the ACEO® technology – a drop-on-demand method developed by WACKER,” says Bernd Pachaly, head of WACKER’s silicones research and responsible for the ACEO® team. “It can be used to make parts and assemblies with complex geometries, as well as ‘impossible products,’ which could not previously be produced.”
The term “additive manufacturing,” better known as 3D printing, describes a manufacturing process in which a workpiece is built up in successive layers, without the use of a mold – i.e., it is a mold-free process. This offers designers significantly more latitude than conventional manufacturing methods. Once a product design has been generated by computer-aided design (CAD) or imaging techniques, printing can commence immediately. 
“The automotive and aerospace industries are currently the main customer sectors for 3D,” says Pachaly, who started developing a system solution for 3D printing with silicones with his team in 2014. At the moment, additive manufacturing is growing most rapidly in medical applications. Biomodeling and customized geometries are particularly promising. “In these types of applications, silicones can display their favorable properties particularly well,” emphasizes the research head. “Silicones are heat resistant, flexible at low temperatures, transparent and biocompatible. They can furthermore be pigmented in any color and have good damping properties.”
With ACEO® Imagine Series K, prototypes or small series can be produced quickly and efficiently. The new 3D printing process thus offers product designers fascinating possibilities. 
ACEO® technology uses a drop-on-demand method. The printer head deposits tiny silicone droplets on a substrate. In this way, the workpiece is built up layer by layer. The silicone is formulated so that the droplets flow together before the curing process begins, which is activated by UV light. The droplets and layers thus produce a homo­geneous workpiece, which does not differ much from injection-molded parts. With the aid of water-soluble support materials, it is also possible to create overhang materials and internal lattices.
ACEO® – New Brand for 3D-Printing Development, Consultation and Services
From August 2016 on, WACKER will be offering services relating to 3D printing with silicone under the ACEO® brand. Customers will be able to upload their own designs in a webshop and order 3D-printed silicone parts. These will be produced in the ACEO® print fab and shipped around the world. Moreover, the interdisciplinary ACEO® team will offer consultation and development services for the design and manufacture of silicone parts or assemblies. 
WACKER is currently building its own technology center – the so-called ACEO® campus – near its main site in Burghausen, Germany. In the future, customers will be able to test their own product ideas here in an Open Print Lab. 
Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jun 28, 2016

WACKER Presents New Applications for Silicone Films

Munich, June 28, 2016 – At the K2016 Trade Fair for Rubber and Plastics, WACKER, the Munich-based chemical company, will be showcasing new applications for ELASTOSIL® Film. These ultra thin, high precision silicone films are currently paving the way for the development of new sensors and actuators in robotics as well as in medical and lifestyle sectors. Applications range from pumps, switches, electrical relays and membranes to sensors in high-tech textiles. 
ELASTOSIL® Film premiered at the K trade show three years ago. The launch generated remarkable and ongoing interest. Since the K debut, WACKER evaluated more than 450 inquiries from potential customers. In the meantime, several promising projects have materialized. 
At this year’s K show, WACKER will present a selection of fascinating applications. The focus will be on wearable sensors, an application which leverages the electroactive properties of silicone rubber. The ultrathin film is embedded between two conductive electrodes made of silicones filled with carbon black. Together, the layers form a flexible capacitor that can store electric charge. If the silicone capacitor is stretched mechanically – for example due to movement – its capacitance also changes. Subtle nuances of such capacitance changes can be measured and thus used for sensory purposes in textiles, for example to capture and display body movements. 
ELASTOSIL® Film is made without the use of solvents and manufac­tured under cleanroom conditions to eliminate any impurities. The patented production process yields continuous films which are extremely thin and homogenous. Film thicknesses down to 20 µm are available, with the thickness fluctuating less than five percent over the entire width. These and several other properties typical of silicone rubber enable technical applications which, up to now, were difficult to realize on an industrial scale. 
Due to its dielectric properties, ELASTOSIL® Film – like all silicone rubbers – is an electroactive polymer. Silicone films are thereby able to respond to electrical stimulation under certain circumstances. If the upper and lower surfaces of the film are coated with a stretchable, electrically conductive material, the layers can be used like a capacitor. When a DC voltage is applied, the electrodes are attracted to each other electrostatically and compress the soft film material. The layer of elastomer material becomes thinner and spreads out in the plane. The capacitor becomes flatter and wider overall. When the capacitor is discharged, the elasticity of the film causes it to return to its original shape. 
This property makes silicone films especially interesting for the following key electroactive technologies: 
* Sensors: Sensors made of ELASTOSIL® Film enable the development of motion-capture clothing and sensor gloves, so-called wearables. They are increasingly in demand in sectors such as consumer electronics, healthcare, sports, rehab, leisure and wellness. 
* Actuators: ELASTOSIL® Film creates new possibilities for manufacturers of actuators. In this case, electrical power is converted into mechanical movement, following the same electroactive principle. The entire process is silent and can be repeated as often as desired. This can be used to develop a wide array of novel products and technologies, such as pumps, switches, electrical relays, valves, artificial muscles, grippers or even loudspeakers.
* Generators: A pile of several hundred stacks of flexible capacitors consisting of dielectric silicone films can be used to transform movement into electrical power. Thus, silicone films enable novel power generators. 

Silicone films can also add value to membrane technologies. They hold back water, but grant free passage to water vapor and certain gases. This gas permeability is highly selective: carbon dioxide, oxygen and water vapor pass through the silicone layer much faster than nitrogen. ELASTOSIL® Film could therefore serve as a membrane for removing a specific gas, such as carbon dioxide.

Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

Jun 28, 2016

New Silicone Additive by WACKER Improves Manufacture of Wood Plastic Composites

Munich, June 28, 2016 – WACKER, the Munich-based chemical group, will be showcasing new thermoplastic silicone additives for the more efficient manufacture of wood plastic composites (WPC) at the 20th International Trade Fair for Plastics and Rubber K 2016. GENIOPLAST® WPC additives improve processing when extruding plastic blends that contain wood, thereby making the manufacture more cost effective and less energy intensive. The additives also enhance the mechanical properties and water-repellency of such plastics. As a result of their weathering resistance and robustness, wood plastic composites are increasingly in demand in the construction, automotive, and furniture industries.  
Two years ago, in collaboration with the Wood Competence Center in Linz, Austria, WACKER started developing new processing aids for wood-polymer materials. These wood plastic composites consist of about 50 to 75 percent refined wood fibers and up to 25 to 50 percent of a polymer such as polyethylene, polypropylene or polyvinyl chloride. These plastics look similar to wood materials and have a similar feel. Thanks also to their durability and processing flexibility, they present an attractive alternative to normal plastics or wood for the construction, furniture and automotive industries.
To enable the wood-polymer components to bond optimally to each other in extrusion molding and to keep the resistance in the extrusion process as low as possible, additives are incorporated as lubricants. By developing new GENIOPLAST® additives for wood plastic composites, WACKER can now offer highly effective processing aids, whose many positive properties give them a competitive edge over comparable products. 
The new additives contain a thermoplastic silicone elastomer. In comparison with conventional silicones, which cure irreversibly following vulcanization, thermoplastic silicones behave thermoplastic also within a certain range of temperatures. This makes them ideally suited as processing aids for thermoplastics with organic fillers. 
GENIOPLAST® additives for wood plastic composites primarily act as lubricants. They reduce the coefficient of friction of the plastic and thereby the internal and external friction during extrusion. This enables the processes to run more stably and efficiently and save more energy. Tests show that one percent of the additive gives a significantly higher throughput – depending on the plastic blend and extruder used by between 15 and 25 percent. This leads in turn to lower unit costs in production. 
The additives are also highly effective: even one percent is sufficient to achieve good lubricating properties. In comparison, conventional lubricants require WPC manufacturers to use between two and six percent of additive to achieve the same effect during extrusion.
GENIOPLAST® WPC additives can be blended easily as the thermoplastic silicone elastomer is already premixed with the corresponding plastic. This preformulated ready-to-use mixture enables the lubricant to be optimally integrated in the production process. At present, formulations with polypropylene (GENIOPLAST® PP 20A08) and polyethylene (GENIOPLAST® HDPE 20A03) are available.
GENIOPLAST® additives for wood plastic composites not only improve the production process, but also the properties of the end product. Wood-based plastics manufactured with the new processing aid have higher impact strength and flexural toughness than parts mixed with standard additives. GENIOPLAST® PP 20A08 and GENIOPLAST® HDPE 20A03 also reduce water absorption. The end products are consequently significantly more resistant to weathering.
Wood plastic composites are currently right on trend. They combine the positive properties of the natural product wood with the benefits of plastics. Whether they are used for decking boards, siding, fencing, windows, doors, furniture, parts for vehicle interiors or technical components – there is now a huge range to choose from. Thanks to their resistance and processing flexibility, wood-plastic materials offer an attractive alternative to unreinforced plastics for the construction, furniture and automotive industry. Wood-based plastics can be machined using all common woodworking machinery and can be worked with a great deal of freedom of design. 
Visit WACKER at K 2016 in Hall 6, Booth A10.

More Less

About us

Company details

WACKER is a globally active chemical group headquartered in Munich, Germany. With a wide range of state-of-the-art specialty products, WACKER is a leader in numerous fields and industries. Its products are required in countless high-growth end-user sectors, such as photovoltaics, electronics, pharmaceuticals and household/personal-care products.

In 2015, the Group generated sales of some €5.3 billion (2014: €4.83 billion). WACKER had about 17,000 employees on December 31, 2015. Founded in 1914, the Group operates 25 production sites, supplying over 3,200 products to more than 3,500 customers worldwide. The Group maintains subsidiaries and sales offices in 31 countries across Europe, the Americas and Asia – including a strong foothold in China. 

WACKER is one of the largest silicone manufacturers worldwide and a leading producer of polymeric additives based on poly(vinyl acetate) and vinyl acetate copolymers. The products of most relevance to the K show range from silicone fluids, emulsions, resins, elastomers and sealants to silanes, silane‑terminated polymers and pyrogenic silica as well as polymeric additives for fiber composites and polymeric materials based on renewable resources. WACKER products are used in such sectors as automotive engineering, construction, chemicals, cosmetics, medical technology, energy & electronics and paper & textiles.

Our participation in the global Responsible Care® initiative commits us to continuously improving our environmental, health and safety performance. We naturally adhere strictly to legal standards and regulations, as well as to our own supplementary guidelines.

More Less