Silicone rubber can be forced through a shaped die (a stainless steel disc with a pattern cut out) to produce cords, complex profiles and cross-sections. This is called 'extrusion'.
Silicone extrusions typically show a huge improvement over other materials - they last longer, come in a multitude of colours, and stand up to a wider variety of environmental conditions. Primasil can produce simple extrusions, or make custom sizes with complex cross-sections. These can be multi-layered to produce a product with multiple performance properties and can also be manufactured in an ISO 7 cleanroom for healthcare applications.