Sterling Seal CFF7106.300.062.300X100 Full Face Neoprene Rubber Gasket - 60 Durometer, 3.5" ID, 3" Pipe Size, 1/16" Thick, Pressure Class 300# (Pack of 100) - Ideal for High-Pressure Piping Systems, Industrial Plumbing, and HVAC Applications

Sterling Seal & Supply 7106 Neoprene 60 durometer rubber is a very good general service gasket material that has numerous applications in the process industries and in the water and wastewater industry Temperature range -20 F to 190 F Sizes and hardnesses other than those shown are available at Amazon This material is black in color with a smooth finish Sterling Seal & Supply 7106 is suitable for applications requiring moderate exposure to the ozone Neoprene is suitable for water, hydraulic silicates and has moderate oil resistance qualities This material is impact and abrasion resistant Commonly used in equipment such as valves, pumps, flanges, Doors, mixers, agitators and automotive replacement parts tips & Suggestions for cutting generic CNA or paper gasket materials:(1) recommended tools: safety Goggles, utility knife, duct tape, ball hammer, marker, and ruler(2) determine proper gasket material(3) clamp part to a vise minimizing movement(4) set the gasket material around the part surface requiring gasket Clamp or use your free hand to carefully hold material to the part Gently Tap around diameter of part surface scoring the material using ball end of hammer If there are holes in the surface requiring gasket, (Ex: bolt holes, impeller or shaft hole) keep tapping Eventually the material will give way, leaving a perfect-sized hole You can either Tap again until extra material falls from surface edge or pull free material from hole Or you can remove the material once scored from surface and use knife to cut along your score marks why four pass torquing Example 4 inch ring gasket for 150 lb ANSI pipe flange with (8) 5/8 inch dia Grade B7 bolts lubricated with a graphite based compound One pass torquing: bolting efficiency = 50 percent four pass torquing: bolting efficiency = 75 percent resulting gasket stress: one pass = 4782 four pass = 7173 result: 50 percent higher gasket stress with four pass torquing

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

2] clean or replace your bolts, nuts & washers. Lubricate the bolt's, thread, nuts, washers and the underside of the head with graphite based compound

3] 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

4] 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

5] 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