BOSS® 826 Acoustical Acrylic Sound Sealant is a one-part, nonflammable, latex based product formulated to reduce sound and smoke transmission in all types of wall partition systems. BOSS® 826 will achieve a Sound Transmission Class (STC) of 53 when applying it in accordance with ASTM C-919 “Standard Practice for use of Sealants in Acoustical Applications”. To achieve the 53 STC, BOSS® 826 should be applied as two beads of sealant at the top, bottom and all perimeter edges. BOSS® 826 is a non-staining, non-migrating formulation that adheres well to most substrates including wood, metal, concrete and gypsum board. BOSS® 826 Acoustical Acrylic Sound Sealant creates a tough, elastic seal against sound, air infiltration (drafts), smoke and moisture. Sold by the tube.
- Meets STC requirements
- Strongly adheres to most substrates
- Won’t stain or migrate
- Low odor
- Quick and easy application
- Soap and water clean-up
% Non-Volatile by weight: 83% %
Volume Shrinkage: ASTM C-733-87: 28%
Weight, approximate: 14.2 lb./gal.
Tack-Free Time: ASTM D-237784: <25 minutes
VOC: 8.6 g/L
Service Temperature: -20F to 185F
Application Temperature: 40F to 110F