Auralex StopGap Acoustical Sealant Tube, 28 oz , 12-Pack

From enhancing soundproofing capabilities to ensuring a clean, professional finish, the StopGap Acoustical Sealant Tube is a versatile solution for all your acoustical sealing needs. This 28 oz, 12-pack product is a highly elastic, water-based sealant, specifically designed to reduce sound transmission in wall systems or around electrical box cutouts, helping you achieve the desired Sound Transmission Class (STC) and Mechanical Transmission Class (MTC) values.

Unlike other brands, StopGap's unique formulation allows it to remain flexible and pliable for up to five times longer, ensuring long-lasting performance. It dries to a tough, durable film, with no residual run-off, making it a reliable choice for professional or DIY projects.

The StopGap Acoustical Sealant is not only functional but also aesthetically pleasing. It dries white and is paintable, allowing it to blend seamlessly with your decor. Plus, it's non-staining, ensuring a clean, professional finish every time.

This product meets the ASTM E-84 standards for flame retardancy, providing an extra layer of safety in your projects. It comes in a large, 28 oz. caulking tube, suitable for use with a larger than normal-sized caulking gun, available at any local hardware store.

When applied in accordance with ASTM C-919 "Standard Practice for use of Sealants in Acoustical Applications", the StopGap Acoustical Sealant can achieve an impressive STC of 53. To reach this rating, apply two beads of sealant at the top, bottom, and all perimeter edges. Each 28 oz. cartridge provides approximately 32 linear ft. of coverage with a 3/8 inch bead applied.

Choose StopGap Acoustical Sealant Tube for a superior, long-lasting, and aesthetically pleasing soundproofing solution.