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What are some facts you should know about hot applied coal tar?

What are some facts you should know about hot applied coal tar? These handling recommendations refer to roofing bitumen complying with the physical property requirements of the American Society for Testing Materials (ASTM) standard D 450 “Specification for Coal Tar Pitch Used in Roofing,Dampproofing, and Waterproofing” (Types I and III coal tar). The bitumen should […]

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What effects does temperature have on coatings?

What effect does temperature have on moisture cured coatings like White-Knight/ White-Stallion or White-Star? Temperature will affect the curing time of a polyurethane or polyurea hybrid coatings. As a rule of thumb, for every 18°F (7°C) rise in temperature, the curing rate will be cut in half. More simply put, as the temperature increases, the […]

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