DAP Blockade Intumescent Acyrilic Sealant is a single-component, water-based firestop sealant for use on concrete, fiberglass, plastic and wood. Meets ASTM E8141 and UL 1479 Standards.
- Intumescent expansion fills voids created by combustible materials burned during a fire
- Treats general firestopping applications for combustible and non-combustible penetrations
- Excellent adhesion to unprimed surfaces
- Red color easily recognized as a firestop sealant
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