Rubber Gasket Materials
A Quick Look Guide to Gasket Materials, Properties & Applications
Key Properties: Our best seller, neoprene gaskets are a good general purpose product with moderate to good properties in many areas. Stocked in a large array of thicknesses. Good mechanical properties, weather and wear resistance. Good bonding strength. Moderate chemical and oil resistance. Relatively low cost & also available in food quality grades.
Typical Applications: General purpose gaskets requiring a good combination of mechanical and weather resistant properties.
Insertion Rubber Gaskets
Key Properties: A low cost rubber reinforced with a cloth weave to reduce the likelihood of tearing. Excellent wear resistance. Good bonding strength. Not as ideally suited to mechanical, weathering and chemical resistance requiring applications.
Typical applications: Applications where low cost and high wear resistance are key requirements, e.g. agricultural machinery, washers, gaskets, sleeves and skirts.
Nitrile Rubber Gaskets
Excellent resistance to oils and fuels. Good bonding strength. Not well suited for ozone and weather resistance. Good bond strength.
Typical Applications: Gaskets where the rubber regularly encounters oils and/or fuels, e.g. fuel tank seals, gearboxes etc.
Nitrile Cork Gaskets
Key Properties: A cork and nitrile mix material, this material is oil and fuel resistant and as such is widely used as a gasket material in mechanical and electrical equipment. Poor tear strength so usually used where it will remain under compression.
Typical Applications: electric motors, valve (rocker) covers, inspection hatches etc.
Key Properties: A rubber which exhibits good elasticity over a larger temperature range than the more standard rubbers. Excellent resistance to many chemicals. Available in food quality and magnetically detectable grades.
Typical Applications: Food processing equipment e.g. washers, gaskets, scrapers, curtains and seals. Automotive, medical, household & leisure.
Key Properties: Excellent weathering properties, ozone and oxidation resistance. Can be difficult to bond.
Typical Applications: Long life outdoor applications e.g. marine and automotive. Extensively used in the water industry in WRAS accredited form.
Shot Blast Rubber Gaskets
Key Properties: Made from natural latex. Available in tan (natural) and black colour variants. Shot blast rubber has very high elasticity and elongation before break. Good bonding strength.
Typical Applications: Where there is a requirement for high shock absorption or wear applications, e.g. chute linings, scraper blades, washers & gaskets.
Viton Rubber Gaskets
Key Properties: An extremely high-performance elastomer. Typically used in high temperature and/or chemically aggressive environments. Excellent weathering properties.
Typical Applications: Washers, seals and gaskets extensively used in the aerospace, automotive, chemical, oil, gas and petroleum industries.
Key Properties: Low cost, transparent.
Typical Applications: Typically used in curtains for commercial and industrial applications; entrances, exits and loading bays. However, can be used to manufacture low cost washers and spacers for non-food applications.
EPDM Foam Gaskets
Key Properties: Closed cell foam – water resistant, lightweight, durable for a foam
Typical Applications: Gaskets, Dust Seals, Hatch seals, Door Seals, Packaging, Anti vibration applications, Sound cladding.
Neoprene/EPDM Foam Gaskets
Key Properties: High compressibility, closed cell foam – water resistance, adhesive backed
Typical Applications: Low cost washers, gaskets and seals
Key Properties: An economic non-asbestos semi rigid gasket material. Good oil, chemical, low pressure steam and water resistance. Low mechanical strength requires careful handling.
Typical Applications: Extensively used for flange gaskets in the chemical and petrochemical sectors amongst others.
Key Properties: Very high resistance to most chemicals, very wide temperature range, low friction, high electrical resistance.
Typical Applications: washers and gaskets in the chemical industries. Machined parts where low friction is required.