ECMACOAT FLEX PU 60 2K is the Two component to be mixed and used as a single component,pure polyurethane resin based, cold & liquid applied coating system for exposure grade.For long term exposure, it needs to be overcoated with UV stable Top coat resin.It is free from bitumen & coal tar. It Conforms to ASTM C-836-95 & ASTM C-898-95.