7175 Style Gaskets have excellent weathering properties and handle both hot and cold temperature extremes; resists ozone and oxygen attack. Silicone, also known as polysiloxanes, are polymers that include any inert, synthetic compound made up of repeating units of silicone, which is a chain of alternating silicon atoms and oxygen atoms, frequently combined with carbon and/or hydrogen. 7175 Style Silicone gaskets conform easily to uneven flange surfaces, has fair abrasion resistance, good impact strength, excellent resilience and a fair tensile strength. Silicone is a very popular flange gasket for hot or cold water. Because silicone is odorless and tasteless, it is ideal for certain surgical and food processing applications. Silicone rubber sheet has poor resistance to oils, fuels, and hydrocarbons. Fair performance when exposed to acids, alkalis and solvents. 7175 Style Silicone Flange Gaskets have proven their long-term reliability over the course of many years.