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.
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 Sound Sealant creates a tough, elastic seal against sound, air infiltration (drafts) and moisture.
Applications: A bead of Acoustic Sound Sealant should be used on the perimeter of a studded wall on both sides of the stud, and on the perimeter of each layer of drywall and mass loaded vinyl. This sealant will stay flexible and not harden like other caulks, so sound waves will be absorb. The flexibility of the sealant also dampens vibrational noise.
Acoustic Sound Sealant should be used in applications of Mass Loaded Vinyl. When two pieces of MLV meet on a stud, the gap should be properly filled with Acoustic Sound Sealant.
NOTE: Each tube is 29oz of sealant (approx 40 linear feet of beading)
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