Combining different surface textures can be effective for adding product features such as branding and interfaces. A polished, reflective surface contrasted with a rougher, matte one will give clear visual and tactile cues about where to focus your attention while using a product, while a more articulated, three-dimensional texture can alter the appearance of a part quite radically, as well as providing added functions such as improved grip or comfort.
The beauty of plastics is that these texture-based effects can be achieved in the surface of a single plastic material, without the need for additional coatings or material combinations, either as in-mould textures applied directly onto an injection moulding tool, or with a secondary process such as laser etching or micro-machining.