IIR- 4 Butyl rubber Petrochemicals Rubber - Elastomer >> Butyl rubber, IIR SEALANT >> Pre-formed tape / Gasket Butyl rubber (IIR) Rubbers made of butyl caoutchouc are highly resistant to temperatures, thermo-oxidative destruction, ozone ageing and to agressive substances such as acids and salts. Very important property of butyl caoutchouc is being gas and steam proof, and according to these two characteristics surpasses all well-known caoutchoucs. Products for civil enginnering industry: pipe gaskets rubber gaskets for pipes operating under pressure This product can be in touch with fuel, lubricant, oil, alkali and neutral acids. Gas and steam proof, butyl rubber (IIR). Used in pipe gaskets and in rubber gaskets for pipes operating under pressure. Offers high resistance to temperatures, thermo-oxidative destruction, ozone ageing and agressive substances such as acids and salts. Offers resistance to fuel, lubricant, oil, alkali and neutral acids.