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Cloth Inserted Styrene Butadiene Rubber (SBR) is synthetic, low-cost rubber material comprised of styrene and butadiene monomers. It is made as a replacement for natural rubber to serve the wide-range demands of various industries. The C.I. rubber gasket material is specially designed to be quick-sealing, non-hardening, and heat-resistant for use in various flanged and mechanical applications.

C.I. SBR has a shore “A” hardness of either 60 or 80 durometer and a temperature range of -20 to +170°F (-28 to 76°C). It has a black, smooth plate finish with cloth insertion for every 1/16” inch of thickness to ultimately reinforce the rubber material. This results in excellent tear strength and abrasion resistance for use in demanding applications.

Like many other synthetic rubbers, SBR has enhanced properties that gives better physical, wear, water heat-aging, and abrasion resistance, making it an economical choice for gasket material. C.I. SBR is durable with excellent impact strength, great resilience, and high tensile strength with added reinforcement of the inserted fabric. It remains flexible enough to conform to uneven flange surfaces.

SBR can resist most weak and moderate organic acids, hot or cold water, alcohol, ketones (acetone), non-mineral oil based brake fluid, Silicone Oil, glycol and aldehydes. However, this material has poor resistance to ozone, sunlight, strong solvents, most hydrocarbons, mineral oil and petroleum-based fluids and its fatigue resistance and low temperature properties remain inferior to natural rubber.

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Hardness "Shore A" (±5)


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