Silicone is the material of choice when a gasket has to survive extreme heat or cold, or contact food and medical surfaces. It stays flexible from deep sub-zero temperatures up to 450°F and offers FDA food-grade options, all while resisting ozone and UV. We laser-cut custom silicone gaskets to your exact dimensions with no minimum order and ship within 24 hours. Custom Silicone Gasket Specifications Temperature range −65°F to 450°F (highest of any standard elastomer) Durometer (hardness) 40–70 Shore A standard Excellent resistance to Extreme heat and cold, ozone, UV, weathering; FDA food-grade grades available Poor resistance to Petroleum oils, fuels, steam, and abrasion Thicknesses available 1/16", 1/8", 3/16", 1/4" Additional specifications and specific durometers are available on request — contact us with your requirements. Common Silicone Gasket Applications High-temperature oven, furnace, and appliance seals Food processing and commercial kitchen equipment Medical and laboratory device gaskets LED and electrical enclosure seals Autoclave and sterilization equipment Extreme-cold and outdoor sealing When to Choose Silicone Choose Silicone over EPDM or Neoprene when you need the widest temperature range or an FDA food-grade seal. It is not the right pick for petroleum oils, fuels, or high-abrasion service — choose Buna-N (Nitrile) for oil or Neoprene for abrasion. Silicone Gasket FAQs Is silicone gasket material food-safe?Yes — FDA food-grade silicone is available for food processing and commercial kitchen equipment. Specify food-grade when ordering if your application requires it.How hot can silicone gaskets get?Standard silicone handles continuous service up to 450°F, higher than EPDM, Neoprene, or Buna-N. That makes it the default choice for ovens, furnaces, and sterilization equipment.Does silicone resist oil?No. Silicone has poor resistance to petroleum oils and fuels. For oil or fuel contact, order a Buna-N (Nitrile) gasket instead. Enter your dimensions in the quote tool above for an instant price on custom Silicone gaskets from Fastest Gaskets — no minimum order, ships in 24 hours. {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Is silicone gasket material food-safe?","acceptedAnswer":{"@type":"Answer","text":"Yes — FDA food-grade silicone is available for food processing and commercial kitchen equipment. Specify food-grade when ordering if your application requires it."}},{"@type":"Question","name":"How hot can silicone gaskets get?","acceptedAnswer":{"@type":"Answer","text":"Standard silicone handles continuous service up to 450°F, higher than EPDM, Neoprene, or Buna-N. That makes it the default choice for ovens, furnaces, and sterilization equipment."}},{"@type":"Question","name":"Does silicone resist oil?","acceptedAnswer":{"@type":"Answer","text":"No. Silicone has poor resistance to petroleum oils and fuels. For oil or fuel contact, order a Buna-N (Nitrile) gasket instead."}}]}
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