ALDOCOAT 400 is a high solids, technologically advanced, fire retardant, thixotropic, 100% acrylic elastomer uniquely formulated for the protection of spray polyurethane foam, metal, and a wide variety of other substrates. The proprietary formulation incorporates premium elastomeric acrylic resins, reinforcing laminar pigments and non-migrating fire retardants to produce a seamless, flexible, durable membrane having exceptional weatherability, ultraviolet and fire resistance. ALDOCOAT 400 acts as a breathing membrane allowing trapped moisture vapor to pass through the film while remaining impervious to exterior mass water penetration. The resultant tough, cured film provides good resistance to mechanical damage and chemical attack.ck