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Gorilla Heavy Duty Construction Adhesive 2.5 oz 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, foam board, marble and more!