Materials

Extended life requirements, higher operating pressures, new environmental regulations, more aggressive coolants and fluids – for gasket suppliers, the demands have never been greater. Selection of the right gasket material, optimized for specific applications, is a highly technical process – one requiring engineering expertise that properly integrates design, analysis, prototype build, and test validation tools with state-of-the-art material sealing technology.

Wolverine offers multiple release agent materials designed to improve product performance, manufacturing efficiency, and product identification and differentiation.

Rubber Coatings

Nitrile Butadiene Rubber (NBR) Good overall resistance to standard heat aging and fluid immersion (i.e., coolant, oil, fuel, refrigerant). Heat resistance up to 200°C in clamped state, application dependent.
Nitrile Butadiene Rubber (NBR) Foamet Same characteristics of NBR, with the added benefit of higher conformance to rough sealing surfaces and lower clamp loads.
Fluoroelastomer Rubber (FKM) Superior heat resistance and fluid immersion. Heat resistant up to 250°C in clamped state, application dependent.
Fluoroelastomer Rubber (FKM) Foamet Same characteristics of FKM, with the added benefit of higher conformance to rough sealing surfaces and lower clamp loads.
Fluoroelastomer Rubber (FKM) Peroxide High resistance to acidic environment of exhaust gases. Heat resistant up to 250°C in clamped state, application dependent.
Acrylic (ACM) High amine resistance. Heat resistance up to 200°C in clamped state, application dependent.

Metal Cores

Cold Rolled Steel ¼ Hard, ½ Hard, Full Hard, C490, SAE 1074 Spring Steel
Stainless Steel SAE 301, ¾ Hard, Full Hard
Aluminum SAE 5052 H38

Release Agents

Graphite Traditional powdered anti-stick coil coating.
Resin Graphite Continuous solid coating.
PTFE Highest performance material, available in black and colors.

Additional information on thicknesses of rubber coatings and metal cores can be found in our Sealing Materials Catalog.

For more information visit our Sealing Development & Validation Testing page.