Butyl is impermeable to most common gases and has good resistance to sunlight and ozone.   Specifications: Low Temperature:   -10° to -60° F High Temperature:   Up to 250° F Tensile Strength:   500 - 3,000 psi Elongation:   850% maximum Compression Set:   Fair to Good Tear Resistance:   Good Solvent Resistance:   Poor Oil Resistance:   Poor Aging Weatherability:   Poor
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