Description

Rheem 33420 BOSS 334 Minimal Expanding Foam – Genius Gun replaces .BOSS 334 Window & Door Minimal Expanding Genius Gun Foam is a one-component, ready to use polyurethane foam, formulated to seal the gap around window and door frame and the rough opening. It expands to generate an effective seal, and when used properly is proven not to distort or bow window and door frames. BOSS 334 will achieve a Sound Transmission Class (STC) of 58 when applying it in accordance with ASTM C-919 Standard Practice for use of Sealants in Acoustical Applications .