With a heavy-duty, polyurethane bond, the gun-applied foam quickly settles into a high-strength gel adhesive to create a bond that exceeds industry performance standards. For a Squeak-Free Subfloor Assembly™, use AdvanTech™ subfloor adhesive and AdvanTech® subfloor panels together. With this combined subfloor assembly, floors not only get a strong, stable base, but a squeak-free panel-to-joist connection GUARANTEED!