Sterling Seal Inc style #7237 Red rubber is a Copolymer of styrene and butadiene with generally good physical properties making it an economical gasket Red rubber gaskets are often called SBR for short This synthetic material was developed as an alternative to natural rubbers Sterling Seal #7237 Red rubber SBR conforms easily to uneven flange surfaces, has good abrasion resistance, excellent impact strength, very good resilience and a high tensile strength Red rubber (SBR) is a very popular flange gasket material for hot or cold water SBR Red rubber is not suited for use with oils, fuels, solvents or hydraulic fluids Red rubber is the most cost effective rubber gasket option available for applications which require a sturdy industrial elastomer Sterling Seal Inc of NJ style 7237 have proven their long-term reliability over the course of many years You will get maximum performance from our gasket materials when you use our gasket installation procedure. [1] clean and inspect the flanges, surface or parts that require gasket Clean or replace your bolts, nuts & washers. Lubricate the bolt's, thread, nuts, washers and the underside of the head with graphite based compound Flat washers are recommended to assure even distribution of the bolting force. Ensure lubricant doesn’t contaminate gasket. Carefully insert the gasket between the mating surfaces The use of a torque wrench is highly recommended. This assures a longer life and leak free performance. Whether an automotive head gasket or a flange gasket, it should be torqued Make four even increment passes in a 12-6-3-9 o'clock pattern sequence. The appropriate stress on the gasket material you use is key to its success which varies depending material chosen Color Red Brand Name Lamons Item Shape Round Unit Count 5.0 Count Manufacturer Lamons Material Type Rubber, copolymer of styrene and butadiene Upper Temperature Rating 158 Degrees Fahrenheit