Buna-N Sheet, Material Buna-N, Shape Sheet, Grade Standard, Length 24 in, Width 12 in, Thickness 1/4 in, Backing Type Plain, Cell Type Closed Cell, Adhesive Type Plain Backing, Number of Adhesive Sides 0, Color Black, Density 14 lb/cu ft, Maximum Temperature 200 Degrees F, Minimum Temperature -40 Degrees F, Tensile Strength 70 psi, Texture Smooth, Firmness @ 25 Percent Deflection 3 psi, Material Skin None, Flexibility Excellent, Standards ASTM D1056 2B1, FMVSS 302, Chemical Resistance Fair