Mass Loaded Vinyl (MLV) Soundproofing Barrier: Because Mass Loaded Vinyl is thin in relation to drywall, is softer than drywall, and when installed is still flexible, it blocks noise in a completely different manner that drywall or plywood for that matter. When vibration (noise) tries to blast through a wall and all the materials are the same, it can easily transmit to the other side. But when vibration travels through drywall, then hits a flexible, thin material, it has to work much harder to get through; this added “work“ uses up the vibration energy and thus absorbs the noise before it can get to the other side.

BOSS® 826 Acoustical Sound Sealant: BOSS® 826 Acoustical Sound Sealant is a one-part, non- flammable, latex based product formulated to reduce sound 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.