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Rubber Profiles

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Description

We offer a comprehensive range of extruded Rubber Profiles and tubing for all applications. These are available in many compounds including Nitrile / Buna-N (NBR), Fluorocarbon (Viton®, Fluorocarbon (FKM), Silicone (VMQ), Fluorosilicone (FVMQ), Natural Rubber (NR), Ethylene Propylene (EPDM), Hydrogenated Nitrile Rubber (HNBR), Styrene Butadiene Rubber (SBR), Chloroprene (Neoprene®), etc. Whether you require just a few meters or much larger quantities, we will be delighted to quote for your requirement. Extruded rubber products will differ from moulded rubber products based on the process where extruded parts are forced through a die of the required cross section under pressure of an extruder. Often extruded products are unvulcanized prior to being extruded, leaving the rubber in a soft and pliable state post extrusion. If this is indeed the case, the finished extruded products will normally need to be vulcanized before they are rendered usable. The extrusion process begins with the unvulcanized rubber compound being fed into the extruder. Next, the flutes of the revolving screw will begin to carry the rubber forward into the die, with an increase in pressure and temperature occurring as the material gets closer to the die itself. Once it reaches the die, the built up pressure forces the material through the openings, where it will consequently swell in various degrees based on the material compound and hardness. Because of this tendency towards swelling, many extruded parts require plus or minus tolerances on their cross sections. During the vulcanization, the extruded rubber will well or shrink in both its cross section and its length depending on the type of rubber compound used. After vulcanization, a length of rubber extrusion will tend to be reduced in dimension more in the center of the length than in the ends.

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