From the subfloor brand builders trust for the flat out best quiet, stiff floors, comes new AdvanTech subfloor adhesive for subfloor assemblies so strong, you won't hear a squeak. 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!. Squeak free guarantee: limitations and restrictions apply. Must use AdvanTech subfloor panels with I-joists or trusses and deformed fasteners. Not applicable over dimensional lumber framing or with other subfloor panels.