An ‘Extrusion’ is where raw material, in this case, silicone rubber is turned into a specific, usable shape using an extruder machine that works using high pressure and a die (a shaped tool). The raw material is pushed through the die creating the finished profile, in continuous lengths, with a consistent cross-sectional shape running throughout. Solid rubber extrusions can be made as a ‘solid’ shape such as a cord, or ‘hollow’ where a hole runs through the entire length of the extrusion just leaving the outer wall. Some of the most commonly used solid rubber extrusions are D-sections, P-sections, door seals, window seals, U-channels and cords, many of which can be supplied with a self-adhesive finish.
Silicone (SI) rubber is an excellent material for producing high-performance extrusions that can operate at high and low temperatures, available in a range of types each with its own set of characteristics, properties and resistances to suit different exposures and environments.