Corona Supplies Ltd. of Thame, Oxon at K 2019 in Düsseldorf -- K Trade Fair
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Corona Supplies Ltd.

Unit G, Howland Road Business Park, OX9 3GQ Thame, Oxon
United Kingdom of Great Britain and Northern Ireland
Telephone +44 1844 261779
Fax +44 1844 358187

Hall map

K 2019 hall map (Hall 10): stand G65

Fairground map

K 2019 fairground map: Hall 10

Our range of products

Product categories

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.09  Ancillary equipment
  • 03.09.001  Surface pretreatment equipment

Our products

Product category: Surface pretreatment equipment

Blown film extrusions

Blown film extrusion usually requires a corona treater to treat both external faces of polyethylene film (although polypropylene can also be treated). Corona treaters by Corona Supplies allow for guaranteed dyne levels, even at high slip additive levels, using a variety of easy to use and safe to operate designs.
Covered Roll, Silicone or Ceramic dielectric rolls, 100,150,200mm diameter
Thin stainless steel or titanium segmented electrodes for excellent pattern setting, with 1.5mm width for greater accuracy.
Pneumatically operated split box style for easy threading
No tension transfer to lay-flat tube
Micrometer air gap adjusters guarantee uniform corona treatment across web
Sprung loaded electrodes allow film contact
Our bespoke designs allow you to have the treater that is right for your application, any width or speed and with various designs available depending on your needs.

Contact Corona Supplies for further technical information or a quotation.

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Target Products
Film/Sheet, Flexible/Elastic

Product category: Surface pretreatment equipment

Cast Film Extrusions

Cast film extrusion, treating both polypropylene and polyethylene films, usually requires greater power due to increased speeds and treat widths.
Corona Supplies provides extremely reliable and optimized corona treatment systems that can treat one side, two sides or either side of the web.

  • Covered roll systems for high, long lasting treat
  • Widths to 5000mm and speeds to 500m/min
  • Ceramic coated base rolls for guaranteed durability
  • Nip roll to guarantee No-Backside treatment
  • Multi-blade or Segmented electrodes
  • Excellent ozone removal even at high speed
  • Back side Treatment - Nip Rolls

The elimination of any trace of treatment on the back side of films becomes more and more part of the modern specification. Reasons for this include blocking, set off and sealing.

The know-how required guaranteeing no backside treatment at any speed and any width up to 7-8 metres is readily available. "Where there is no air, there is no treat"; so a specific configuration of the backing roll, nip roll and spreader roll is vital. The appropriate configuration depends on circumstances, but if it is wrong it will add to web handling and tension control problems and not eliminate backside treatment.

Contact Corona Supplies for further technical information or a quotation.

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Target Products
Film/Sheet, Flexible/Elastic

Product category: Surface pretreatment equipment

Laminating & Printing

Why do I have to treat my material on the printing press if its already been treated at extrusion?

Corona treatment raises the surface energy of substrates. However due to migration of additives to the substrates surface during storage, the corona effect can be reduced within hours, weeks or months, depending on storage conditions. When printing one must ensure that the dyne level of the substrate is high enough to promote adhesion of the inks onto the substrate, otherwise this can lead to disastrous consequences. To ensure this adhesion, it is highly recommended that flexographic and rotogravure printing presses have a corona treater installed.

Likewise, in the lamination process the surface energy of one substrate must be higher than the other substrate to promote adhesion and avoid delamination.

  • Coating, Laminating, Printing
  • Universal corona treatment systems, for conductive and non-conductive substrates
  • Ceramic Electrodes, unique triple treat, increased corona dwell time.
  • Easy to clean and maintain electrode cartridges, rotate 180 degrees without loss of HT connection.
  • Aluminium or ceramic coated base rolls for enhanced treatment
  • Widths to 3000mm and speeds to 1500m/min
  • Easy, removable electrode cartridges
  • Calibrated direct action, cross-web air gap adjustors for uniform treatment
  • Compact yet powerful treat
  • Light weight, low inertia base rolls
  • Open style construction, ozone extraction at source
  • Safe and easy to operate, maximum operator convenience
  • High performance trouble free treating
  • Hazardous systems
Corona Supplies also supplies corona treaters to use within hazardous (flammable) environments where contact with solvents may be a concern.

Contact us to discuss current legislation and recommendations whether your application requires a pressurised corona treater for use in hazardous areas.

Contact Corona Supplies for further technical information or a quotation.

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Target Products
Film/Sheet, Printed/Decorated, Flexible/Elastic

About us

Company portrait

Welcome to corona supplies

We are the only UK manufacturer of corona treatment equipment and supplier of Sherman Treaters products & spares.

Corona Supplies is made up of ex-Sherman Treaters employees, including technical and production specialists, who offer a wealth of corona industry experience, years of product expertise and excellent customer knowledge.

At Corona Supplies we pride ourselves in solving your corona treatment requirements with a fast and efficient level of service, quality and great value.Corona Supplies manufacture corona treaters and offer complete solutions for plastic film extrusion, (blown film, cast film and wide web extrusion), conversion (printing and laminating), as well as narrow web printing and ozone elimination systems.

Sherman Treaters products, which have held a worldwide reputation for quality and performance for over more than 35 years, will continue to be supported by Corona Supplies.We offer original Sherman Treaters spare parts for existing equipment and ancillaries including silicone sleeves, ceramic electrodes and ceramic dielectric coated base rolls. We also offer a complete range of Dyne Test Pens and Dyne Inks to measure surface tension and indicate surface wettability and interface adhesion levels.

Our technical service department offers quality after sales service and technical support by personnel that have over 20 years experience in Sherman Treaters products.