Rubber Roll, EPDM Cloth Inserted 1 PLY, Rubber Width 12 in, Rubber Length 12 in, Rubber Thickness 1/8 in, Black, 60A, Adhesive backingâ¢Good aging resistanceâ¢5oz Nylon Reinforcementâ¢Lower electrical conductivityâ¢Resistance to oxygen, weathering and ozoneâ¢EPDM works best in flat applications not under stress.