J-B Weld 8277 WaterWeld Underwater Epoxy Putty – 2 oz
Product Features
-
Underwater Curing – Uniquely engineered to set and cure while submerged, making it ideal for repairing active leaks in plumbing, pools, spas, and marine equipment.
-
High-Strength Bond – Provides a powerful 4,370 PSI tensile strength that forms a permanent, chemical-resistant seal on fiberglass, PVC, metal, and wood.
-
Rapid Set Time – Offers a 25-minute work life and sets hard in just one hour, allowing for same-day repairs and minimal downtime.
-
Potable Water Safe – Certified by the NSF as safe for drinking water contact, making it suitable for repairing fresh water tanks and supply lines.
-
Machinable Finish – Cures to a versatile off-white color that can be drilled, tapped, filed, sanded, and painted once fully hardened.

Description
J-B Weld WaterWeld is the ultimate emergency repair solution for leaks that won’t wait for a dry surface. This hand-mixable putty is easy to use: simply knead it until uniform in color and press it into cracks or holes to create a waterproof seal. It resists water, oil, gas, and most chemicals, and can withstand temperatures up to 250°F. Whether you’re patching a fuel tank, sealing a cracked tub, or repairing a swimming pool, this 2 oz stick provides the durability and versatility needed for long-lasting DIY and professional fixes.
Additional information
| Weight | 0.5 kg |
|---|---|
| Dimensions | 17 × 11 × 10 cm |






Reviews
There are no reviews yet.