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Expanding Foam

Regular price $6.65


BOSS 333 Polyurethane Expanding Foam (12 oz. can)

BOSS® 333 is a ready-to-use, multi-purpose, polyurethane foam that expands to three times its original volume on contact with air. The expanding action fills holes, cracks and gaps more completely than standard caulks. BOSS® 333 has excellent insulating properties and superb adhesion to virtually all building materials. FEATURES

• Meets CA-25-4

• UL Classified, Tested to ASTM E-84

• Triple Expanding

• Weatherproofs against wind and moisture

• Fills gaps, cracks and holes

• Seals out insects and pests

• Can be sanded, painted and stained

• Complies with EPA Method 24 and California Air Resource Board Method 310 • VOC Compliant