Blockade® is a single component water-based intumescent acrylic firestop sealant. Blockade meets ASTM E 814/UL 1479 specification for Fire Tests of Penetration Firestops. Intumescent product expansion fills the void created by combustible materials burned during a fire.Blockade treats general fire stopping applications for combustible and noncombustible penetrations and also has exceptional sealant qualities such as: superb unprimed adhesion, excellent flexibility, easy gunning and is paintable once fully cured.
