JB Weld Waterweld Epoxy Repair Putty - White - 57G
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Product Information
Full details
The JB Weld WaterWeld Epoxy Repair Putty is designed for DIYers and professionals needing reliable, permanent repairs in wet or even underwater conditions. Its key benefit is its ability to bond effectively to damp surfaces, making it ideal for plumbing emergencies and marine applications. A potential caveat is its 25-minute set time, which requires prompt application once mixed.
All features
| Colour | White |
|---|---|
| Model Part Number | 4370 |
| Brand | JB Weld |
Extended Product Information
FAQs
Can WaterWeld be used on drinking water pipes?
Yes, once fully cured, JB Weld WaterWeld is waterproof and can be used on pipes that carry potable water.
What is the shelf life of WaterWeld?
When stored in its original packaging in a cool, dry place, WaterWeld typically has a shelf life of 2-3 years.
How long does it take to fully cure?
WaterWeld has an initial set time of 25 minutes. For maximum strength and machinability, allow it to cure for at least 1 hour, with full cure achieved in 4-6 hours.
Can I use this on a gas tank?
While strong, WaterWeld is not recommended for use on fuel tanks due to potential chemical reactions and safety concerns with flammable liquids.
What color is it after curing?
JB Weld WaterWeld cures to an off-white color.
Can I sand and paint the repaired area?
Yes, once fully cured, the epoxy can be drilled, tapped, sanded, and painted to match the surrounding surface.
Does it require any special tools for application?
No, the putty is hand-mixable. You will need a tool to cut the putty (like a knife or scissors) and potentially gloves for mixing.
Troubleshooting
Putty doesn't harden or cure properly
Ensure the resin and hardener components were thoroughly mixed until a uniform color was achieved. In cold temperatures, curing may take longer; try to conduct repairs in a warmer environment if possible.
Weak or failing bond
The surface may not have been adequately prepared, or the putty was applied too thinly. Ensure the area is clean and free of grease or oil. Apply sufficient putty to create a strong fillet around the repair.
Putty becomes too hard to work with quickly
This can happen in warmer conditions. Mix only the amount needed for the immediate repair. Work efficiently once kneading begins.
Pros and Cons
Pros
- Excellent adhesion in wet and underwater conditions.
- Provides a very strong and durable repair.
- Easy to use with no messy measuring required.
- Can be finished to match surrounding materials after curing.
- Suitable for a wide range of applications, from plumbing to boats.
Cons
- Requires mixing, which can be messy if not done carefully.
- The 25-minute set time might be insufficient for very complex or large repairs.
- Color is off-white after curing, which may not suit all aesthetics without painting.
- Not designed for use on high-temperature applications.
Setup, Compatibility & Care
Setup:
- Prepare the Surface: Clean the area to be repaired as much as possible, removing loose debris. A slightly roughened surface can improve adhesion.
- Cut: Use a knife or scissors to cut off the required amount of putty.
- Knead: Wear gloves (recommended) and mix the putty by hand until it achieves a uniform color. This typically takes 1-2 minutes.
- Apply: Apply the mixed putty firmly to the prepared area. Ensure good contact, especially for underwater repairs.
- Cure: Allow the putty to cure for the recommended time (25 minutes for initial set, longer for full strength). Avoid disturbing the repair during this period.
Compatibility:
WaterWeld adheres well to PVC, metal, fiberglass, concrete, wood, and some plastics. It is not recommended for flexible materials or surfaces that experience extreme heat.
Care:
Once cured, the repaired area can be cleaned with mild soap and water. Avoid using harsh solvents on the epoxy.