Butyl Rubber

BRP manufactures high grade commercial butyl rubber available in .019 – .5” thicknesses and conforming to Type BA. Our butyl rubber products  is available in 50, 60 and 70 durometers. Made from a blend of isobutylene with isoprene polymers, butyl rubber is an excellent general purpose material that can be used for many applications.

Butyl rubber is a great option for shock absorption applications. This flexible material offers exceptionally low gas and moisture permeability in addition to outstanding heat, weather, ozone and age resistance.  Butyl rubber also protects against chemical attack, flexing, abrasion and tearing.

Butyl rubber provides good chemical resistance and holds up in most industrial applications. Although it is resistant to phosphate ester based hydraulic fluids, it is not recommended for use with petroleum oils and fluids.


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Description Durometer Tensile (Min PSI) Elongation (%) Temperature Range (F) Specification Conforms to ASTM D20000 Spec Sheet Quote


50 +/- 5



-40° F to 220°F

ASTM D2000
M4AA508A13B13C12F17Z, Z = Butyl

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60 +/-5



-40° F to 220°F

ASTM D2000 BA610

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It’s known for its excellent shock dampening ability and commonly used in applications that require gas permeability and high temperature tolerances. Butyl rubber also offers excellent electrical insulation performance properties. It’s widely-used in diaphragms for fluid and air sealing and liquid retention.

It is also used in applications requiring ozone, oxidation, and sunlight resistance. Compared to other rubber materials, butyl rubber provides 70% better air permeability. Butyl rubber is an economic alternative to neoprene. All BRP rubber products are American-made in their Lima, Ohio facility.

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