Full definition
Sheet produced from ethylene-propylene-diene rubber, providing the best weather, ozone, UV, steam, and hot water resistance of any general-purpose rubber sheet material. Temperature range: -50 to +150°C continuous. Excellent for outdoor applications with no antiozonant bloom or surface cracking. Chemical resistance: good to dilute acids, alkalis, ketones, alcohols, phosphate-ester hydraulic fluids; incompatible with mineral oils, greases, and hydrocarbon solvents (swells and degrades). Thicknesses: 1.5-12 mm standard (up to 25 mm available). Widths: 1,000-1,500 mm in rolls. Hardness: 40-80 Shore A. Elongation: 300-500%. Colors: black (standard), white (FDA/food grade), gray. Per ASTM D2000 classification AA/BA and ISO 48 for hardness. Applications: roofing membrane underlayment, outdoor gaskets and seals (weatherproof enclosures, HVAC equipment), steam and hot-water system gaskets, expansion joint filler, pond liners, solar panel mounting pads, and general-purpose weather-resistant sheet. Also available with one or two plies of fabric reinforcement for increased tensile strength and reduced elongation. Leading brands: Warco Biltrite, Rubber-Cal, Fairprene, Reglin.