KEY VINYL ESTER COATING is a 100% reactive, vinyl ester novolac used to coat concrete or steel surfaces in chemically aggressive industrial environments. Due to its high molecular weight and low permeability, it will withstand exposure to a broad range of acids, caustics, and solvents. Key Vinyl Ester Coating is designed for coating primary and secondary containment, trenches, troughs, pump pads, equipment, and structural members. Low temperature accelerators are available for positive cures at temperatures from 32º to 55ºF.