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B&Q£21.70Visit shop B&Q - J-B Weld Waterweld Epoxy Repair Putty (2 Pack)57G Off White Sticks25-Minute Set Time4370 Psi Strength
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J-B Weld WaterWeld Epoxy Repair Putty is designed for anyone needing to make repairs in wet, damp, or even underwater conditions. Its key benefit is providing a strong, permanent bond in challenging environments without needing dry application surfaces. A potential caveat is the 25-minute working time, which requires prompt application once mixed. This versatile epoxy stick combines resin and hardener into a single, hand-mixable format, offering quick application for plumbing, tanks, and marine repairs, curing to a durable, sandable, and paintable finish.
| Colour | White |
|---|---|
| Model Part Number | 4370 |
| Brand | JB Weld |
Yes, J-B Weld WaterWeld is NSF certified for contact with potable water after a full cure. Always follow application instructions for best results.
While handling strength is achieved in a few hours, a full chemical cure typically takes 24 hours. The product can be drilled, tapped, sanded, and painted after a full cure.
Unused WaterWeld putty, when stored in its original packaging in a cool, dry place, typically has a shelf life of 1-2 years.
WaterWeld is not designed for high-heat applications. Its temperature resistance after cure is generally around 200°F (93°C).
Each 57g stick provides approximately 2.5 cubic inches of material. The exact coverage depends on the depth and shape of the repair.
WaterWeld can cure in cold water, but the curing time will be extended. Ensure sufficient working time and hold pressure until initial set occurs.
Ensure the putty was kneaded sufficiently until it reached a uniform color. If the ambient temperature is too low (below 40°F/4°C), curing may be significantly slowed or inhibited. Try moving the item to a warmer location.
This is normal as the resin and hardener begin to react. Knead more vigorously to soften it. Ensure the putty was stored correctly and not exposed to excessive heat, which could pre-cure it.
Ensure the surface was clean, dry (as much as possible for the application), and free of grease, oil, or loose material. Lightly sanding the surface before application can improve adhesion.
Ensure the area is relatively free of strong currents during application. Press the putty firmly into place and hold for a few minutes to allow initial adhesion before releasing.
Setup:
Compatibility:
WaterWeld adheres to most materials including PVC, CPVC, metal, fiberglass, concrete, and some plastics. It is not recommended for use on polyethylene or polypropylene plastics without surface treatment. Always test on an inconspicuous area if unsure.
Care:
Store unused WaterWeld in its original packaging in a cool, dry place. Once mixed, the putty has a limited working time and cannot be stored. Clean tools and gloves with soap and water before the putty cures.
