50004a Original Glue, Waterproof & Expanding, 4 Oz.

Gorilla Original Glue is a waterproof, expanding polyurethane adhesive engineered for industrial-strength bonding on nearly any surface. Whether you're repairing broken ceramics, assembling wooden projects, securing metal components, or bonding foam and glass, this trusted formula delivers reliable results both indoors and outdoors. The water-activated polyurethane expands as it cures, filling gaps and voids to create an incredibly strong, permanent bond that resists water damage for years.

This versatile adhesive solves bonding challenges across materials and environments. Its expanding action ensures excellent gap-filling capability, while its waterproof properties stand up to moisture, humidity, and temperature fluctuations. The bond can be sanded, stained, or painted once fully cured, making it suitable for projects where a finished appearance is desired.

Features and Benefits

• 100% Waterproof: Resists water damage and outdoor elements, maintaining bond strength through years of exposure.
• Expanding Formula: The water-activated polyurethane expands into materials to fill gaps and create an incredibly strong, gap-bridging bond.
• Versatile Bonding: Bonds wood, stone, metal, ceramic, foam, glass, and concrete, making it suitable for nearly any project or repair.
• Temperature Resistant: Bond holds reliably through hot summers and freezing winters without breaking down.
• Sandable and Finishable: Once cured, the bond can be sanded, stained, or painted for a finished appearance.
• Industrial Holding Power: Known for exceptionally strong, permanent bonds that handle demanding applications.

Specifications

• Brand: Gorilla
• Model: 50004A
• Size: 4 oz. bottle
• Type: Water-activated polyurethane adhesive
• Color: Brown
• Waterproof: Yes, 100% waterproof
• Clamp Time: 1–2 hours