boss 333 polyurethane foam spray
BOSS 333 Polyurethane Foam Spray is a versatile, high-expansion, one-component foam that is specially formulated for a wide range of sealing, filling, and insulating applications. This polyurethane-based foam spray is designed to provide excellent adhesion and thermal insulation, making it an essential tool for both professional contractors and DIY enthusiasts.
When dispensed, BOSS 333 expands rapidly to fill gaps, cracks, and cavities, creating a durable, airtight seal that effectively insulates against heat, cold, sound, and moisture. This makes it ideal for use in construction and renovation projects where energy efficiency and protection from the elements are crucial. Whether you're insulating windows and doors, sealing around pipes and ducts, or filling voids in walls and ceilings, BOSS 333 ensures a secure and long-lasting seal.
BOSS® 333 is a ready-to-use, multi-purpose, polyurethane foam that expands to three times its original volume when in contact with air. This volume expansion capability fills holes, cracks, and gaps more completely than standard caulks. The product also has excellent insulating properties and superb adhesion to virtually all building materials.
- Excellent stability with a high filling capacity.
- Freon-free.
- Good adhesion on all surfaces (except PE, PP, and PTFE).
- High thermal and acoustic insulation value.
- Excellent bonding properties.
Features:
- All foam applications in static joints.
- Application of an acoustic baffle.
- Filling of cavities and sealing of all openings in roof constructions.
- Improving thermal insulation in cooling systems.
- Installation of doors and windows.