Custom Neoprene Gaskets — General-Purpose, Oil and Water ResistantNeoprene (chloroprene rubber) is the reliable workhorse of the gasket world. It resists both petroleum oils and water, handles moderate temperatures, and holds up well outdoors — which is why it's specified as the default sealing material across a wide range of industrial, HVAC, marine, and general manufacturing applications.Why choose neoprene for your gasket? Good resistance to petroleum oils, greases, and hydraulic fluids Water and weather resistant Temperature range: -40°F to +250°F Better ozone and UV resistance than natural rubber Available in 1/32", 1/16", 3/32", 1/8", 3/16", and 1/4" thicknesses For more aggressive chemical or fuel resistance, Buna-N (nitrile) is the better choice. For outdoor or water-only service, EPDM offers superior UV and ozone resistance.Common neoprene gasket applications HVAC ducts, fan housings, and air handling units Marine and boat hardware Electrical enclosure seals Plumbing and pipe flanges General industrial machinery Refrigeration equipment How to order: Enter your dimensions above for an instant price. We laser-cut your neoprene gasket from sheet stock and ship same day from Orange, CA.Frequently asked questionsWhat durometer is your neoprene?Our standard neoprene sheet is 60A durometer — medium firm. It seats well under moderate bolt load and holds its shape in service. If you need softer (40A) for sealing rough surfaces, contact us.Is neoprene the same as EPDM?No. Both are synthetic rubbers but they have different chemical structures and strengths. Neoprene handles oils better; EPDM resists UV and ozone better and is the preferred choice for water-only or outdoor-only service. If you're unsure, contact us with your application details.Can I order any shape in neoprene?Yes — rings, rectangles, discs, custom shapes, and DXF uploads are all available in neoprene. Use the quoter above for standard shapes or the DXF upload page for custom drawings.