BOSS 334 MINIMAL EXPANDG | BSP-146818

In addition to providing an airtight and watertight seal, BOSS Products' 334 Minimal-Expanding Door & Window Foam also contributes to improved soundproofing. When used according to ASTM C-919 guidelines, it can achieve a Sound Transmission Class (STC) rating of 58, significantly reducing noise transmission. This makes it an ideal choice for both residential and commercial applications where sound control and energy efficiency are important. BOSS 334 is a versatile and reliable foam, perfect for window and door installations, ensuring high-quality performance every time.

• Excellent stability (no shrink or post expansion)
• Very precise application due to the foam gun system
• Low pressure build, reducing the chance of bowing
• High thermal and acoustical insulation
• Very good filling capacities and excellent mounting capacities