Gorilla Heavy Duty Construction Adhesive is a tough, versatile, all-weather adhesive. The 100% adhesive formula provides a long-lasting, heavy duty bond. We call it All Surface, All Purpose . The gap-filling, durable, 100% waterproof adhesive formula is perfect for indoor and outdoor projects, holds in 30 seconds, and bonds virtually anything including subfloor, mirrors, trim, drywall, landscaping, bath surrounds, foamboard, marble and more!