Foster Vapor-Safe Coating 30-80 is a white, water-base, fire-resistive, flexible, high solids vapour barrier finish for most types of thermal insulation, including polystyrene foam. It may be used over dry concrete, finishing cement, and most metals.
Vapor-Safe Coating has the water resistance and low water vapour permeance normally found in only solvent based products. It can be used in high humidity environments, and greatly retards water vapour permeation.
Operating temperature: -29 to 82°C