¡Obtenga asesoría en español!  Llámenos hoy a (800) 222-4701

Auralex StopGap Acoustical Sealant , 21 dollars and 99 cents - Add to Cart Skip to Product Information

Auralex StopGap Acoustical Sealant

Acoustical Sealant for Wall System Perimeters, Electrical Box Outlets, and Other Acoustic Breaks
Item ID: StopGap
Auralex StopGap Acoustical Sealant
Backordered - More On The Way!

We expect more from Auralex soon. Order today to reserve yours now, risk-free. Estimated November 17, 2026

Package Options:
Ask An Expert Our Expertly trained Sales Engineers are ready to help!
(800) 222-4700 Email
What is a Sales Engineer?
Auralex StopGap Acoustical Sealant
Backordered - More On The Way!

We expect more from Auralex soon. Order today to reserve yours now, risk-free. Estimated November 17, 2026

– Notify Me
Accessories Description Specs Reviews

Premium Acoustical Sealant!

Written By

Our Product Research Team

Get to know them!

Available at Sweetwater, Auralex StopGap Acoustical Sealant is a high-performance, water-based formula designed to reduce sound transmission by sealing gaps and penetrations in wall systems. Ideal for use along wall perimeters and around electrical box cutouts, StopGap helps achieve optimal STC (Sound Transmission Class) and MTC (Mechanical Transmission Class) ratings. Formulated for long-term flexibility, StopGap dries to a tough surface film while remaining pliable. Unlike other sealants, StopGap leaves no messy runoff and is both paintable and non-staining, making it a clean, professional choice for any installation.

Note: This product cannot be shipped by air. Please contact your Sweetwater Sales Engineer with any questions.

Auralex StopGap Features:

  • Reduces sound transmission for improved acoustical performance
  • Stays flexible significantly longer than standard sealants
  • No residual runoff—clean and easy application
  • Paintable and non-staining
  • Flame retardant (meets ASTM C-834 standards)
  • Comes in a large 29 oz. tube