Description
J-B Weld WaterWeld is a specially formulated waterproof epoxy putty designed to repair, seal, patch, and rebuild surfaces exposed to water, moisture, and wet conditions. Unlike many conventional repair compounds, WaterWeld can be applied directly to wet surfaces and even cures underwater, making it an essential solution for emergency plumbing repairs, marine maintenance, pool repairs, and water tank restoration.
This hand-mixable two-part epoxy putty stick is easy to use and requires no special tools. Simply knead the material by hand and apply it to the damaged area. Once cured, WaterWeld forms a strong, durable bond that resists water and can be drilled, tapped, filed, sanded, and painted to match the surrounding surface.
Designed for both professional tradespeople and DIY users, WaterWeld provides a reliable repair solution for leaks, cracks, holes, and damaged components in plumbing systems, fuel tanks, boats, pools, spas, drains, tubs, showers, and potable water tanks. Its ability to bond in challenging wet environments makes it one of the most versatile repair products in the J-B Weld range.
Whether you need to stop a leaking pipe, patch a crack in a pool, repair a boat component, or restore a damaged water tank, J-B Weld WaterWeld delivers dependable performance where ordinary repair products may fail.
Key Features
Cures Underwater
Specially formulated to set and cure even when applied underwater, making it ideal for emergency repairs in wet environments without requiring complete drying of the repair area.
Seals Leaks, Cracks & Holes
Effectively plugs and repairs leaks, cracks, gaps, and holes in a wide range of surfaces and equipment exposed to water.
Waterproof & Durable Bond
Forms a strong waterproof repair that withstands constant exposure to moisture and wet conditions, making it suitable for long-term use.
Easy Hand-Mix Formula
The convenient putty stick design allows for simple hand mixing and application without specialised equipment or tools.
Machineable After Curing
Once fully cured, WaterWeld can be drilled, tapped, filed, sanded, shaped, and painted for a professional-looking repair.
Strong & Heat Resistant
Provides a tensile strength of up to 900 PSI and withstands temperatures up to 300°F (149°C), making it suitable for demanding repair applications.
Safe for Potable Water Applications
Suitable for repairing potable water tanks and water-related systems where reliable performance is required.
Specifications
Brand: J-B Weld
Product Name: WaterWeld
Model: 8277
Type: Underwater Epoxy Putty Stick
Size: 2 oz (57g)
Colour: Off White
Set Time: 15–25 Minutes
Tensile Strength: 900 PSI
Temperature Resistance: Up to 300°F (149°C)
Application: Wet Surfaces & Underwater Repairs