J-B Weld J-b Weld 8277 Waterweld Epoxy Putty, Underwater Repair, 2 Oz

J-B Weld WaterWeld is a two-part epoxy putty designed to plug leaks, seal cracks, and patch holes in virtually any material—even under water. Simply knead the putty by hand until thoroughly mixed, then press it into the damaged area. It works on plumbing, fuel tanks, tubs, showers, drains, pools, spas, boats, and potable water tanks without requiring special surface preparation. Once cured, the hardened putty can be drilled, tapped, filed, sanded, and painted to match your project.

Because WaterWeld sets even in moist conditions and underwater, you can patch a leaking boat hull without draining it or repair a pool without emptying it. Its formulation is non-toxic and approved for use with potable water, making it suitable for drinking water system repairs.

Features and Benefits

• Underwater Capable: Cures even when submerged, eliminating the need to drain tanks, pools, or boats before making repairs.
• Quick Setup: Sets in 15 to 25 minutes and cures completely hard within 1 hour, allowing you to get back to work fast.
• Multiple Surface Bonding: Works on aluminum, bronze, and PVC piping without special prep.
• Workable After Cure: Once hardened, the putty can be drilled, tapped, filed, sanded, and painted for a professional finish.
• Temperature Resistant: Withstands temperatures up to 300°F, maintaining bond strength in demanding conditions.
• Potable Water Safe: Non-toxic and approved for use with potable water applications.

Specifications

• Brand: J-B Weld
• Model: 8277
• Size: 2 oz stick pack
• Color: Off-white
• Type: Two-part epoxy putty
• Tensile Strength: 900 psi
• Temperature Rating: Up to 300°F
• Set Time: 15 to 25 minutes
• Full Cure: 1 hour