Control lockdown encapsulant is a unique blend of acrylic copolymers and surface active agents which effectively bonds to and encapsulates particulate matter such as asbestos and lead based paint. The bonding process reduces the risk of the particulate becoming airborne thus minimizing the associated health risk. The cured film provides a long lasting, durable barrier with excellent primer characteristics for spray-back and water based latex architectural coatings. The product effectively penetrates and improves the cohesive strength of the substrate. Cafco and W. R. Grace approved primer coat.