Premium Acoustical Sealant!
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
