Auralex StopGap Acoustical Sealant @ TrueSoundControl.com

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Auralex StopGap Acoustical Sealant

Auralex StopGap Acoustical Sealant is a highly elastic, water-based sealant used for reducing sound transmission at the perimeter of wall systems or around electrical box cutouts to achieve specified STC/MTC values. The surface dries to a tough film but the sealant remains flexible and stays pliable for up to 5 times longer than alternative brands. And unlike other products, Stop-Gap has no residual run-off. StopGap is paintable and nonstaining, and meets ASTM C-834 standards for flame retardancy (flame spread=0; smoke developed=0).

Suggested applications:

Apply in a 1/4" (6mm) bead around perimeter of sound related partition
Apply to depth as required for voids and larger openings
Seal sound-rated partitions on both sides where facings abut dissimilar materials
Apply to all openings formed for outlets and lights and completely cover the outside of electrical boxes

Auralex StopGap comes in a large, 29 oz. caulking tube and therefore requires a larger than normal-sized caulking gun, which can be purchased at any local hardware store.

Coverage per 29 oz. cartridge is approximately:

1/4 inch bead: 89 linear feet (27m);
3/8 inch bead: 40 linear feet (12m); or
1/2 inch bead: 22 linear feet (6m).

Please Note: Auralex StopGap Acoustical Sealant is considered Consumer Commodity ORM-D and is not air shippable.

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