Auralex StopGap

Acoustical Sealant for Wall System Perimeters, Electrical Box Outlets and Other Acoustic Breaks
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Auralex StopGap image 1
Auralex StopGap image 1

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Auralex StopGap
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Note: This product cannot be shipped by air.

Auralex StopGap acoustical sealant is a highly elastic, water-based sealant that reduces sound transmission at the perimeter of wall systems or around electrical box cutouts to achieve specified STC/MTC values. StopGap's surface dries to a tough film, but the sealant remains flexible and stays pliable for up to five times longer than alternative brands. Unlike other products, StopGap has no residual run-off. StopGap is paintable and nonstaining, and it also meets ASTM C-834 standards for flame retardancy.

StopGap comes in a large, 29-ounce caulking tube and therefore requires a larger-than-normal-sized caulking gun, which can be purchased at any local hardware store. Coverage per 29-ounce cartridge is approximately 40' with a 3/8" bead applied.

Auralex StopGap Features at a Glance:
  • Reduces sound transmission at perimeter of wall systems and around electrical boxes
  • Dries to a tough but pliable white film
  • Paintable and nonstaining
  • 1 tube covers 48' with 3/8" bead
Reduce sound leakage with Auralex StopGap acoustical sealant.

Additional Media

Acoustic Treatment Buying Guide

Tech Specs

Manufacturer Part Number STOPGAP

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See also: Auralex, Auralex Acoustic Construction