Seal gaps and insulate like a pro with Sika Boom Expanding Foam, a high-quality polyurethane foam designed for filling, sealing, and insulating joints and cavities.
It expands quickly to block air, moisture, and sound — ensuring long-lasting protection and energy efficiency.
Specifications:
Type: 1-component polyurethane foam
Application: Manual or gun-grade
Expansion: Up to 40 times its original volume
Curing Time: 1–2 hours (surface dry)
Features:
Excellent adhesion on concrete, brick, metal, and wood
Airtight and waterproof once cured
Reduces noise and improves insulation