Boss 638 Collapsing Gel Subfloor Adhesive is a premium-grade construction adhesive designed to reduce floor squeaks and enhance bonding strength in subfloor installations. This 29oz cartridge, sold as a contractor pack of 12, is built for pros who want quieter, more stable floors without the drama.

Key Features & Design

• Collapsing Gel Technology: Fills gaps and uneven surfaces by collapsing on contact, ensuring maximum adhesive coverage and reducing floor squeaks.
• Strong, Flexible Bond: Designed for subfloor, decking, and general construction applications—bonds to wood, OSB, plywood, and more.
• Weather Resistant: Performs in a variety of temperature and moisture conditions for year-round use.
• Professional Grade: High-strength formulation suitable for residential and commercial construction.
• Contractor Pack: Sold in a box of 12 – 29oz cartridges, ideal for large-scale projects.

Specifications

• Brand: Boss
• Size: 29oz cartridge
• Type: Subfloor Collapsing Gel Adhesive
• Box Quantity: 12 Cartridges
• Applications: Subfloors, decking, sheathing, joists, beams

For reliable subfloor bonding and a quieter, more stable floor system, trust Boss 638—the pro’s solution for squeak-free results. Because life’s too short for squeaky floors.