J-B Weld Water Weld Epoxy Putty - 2 OZ White
J-B Weld Water Weld Epoxy Putty - 2 OZ White
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J-B Weld Water Weld Epoxy Putty - 2 OZ White

Pack Size:Single

Key item features

  • Versatile Applications: Great for plumbing & irrigation, marine & boats, tubs, showers & drains, and potable water tanks.
  • Material Compatibility: Works best on rigid plastics and fiberglass; also suitable for all metals, stone, and concrete.
  • High Pressure Resistance: Holds up to 10 times typical household water pressure, ensuring durability.
  • Easy to Use: Hand-mixable epoxy putty that molds to fit and shape anywhere, sealing and filling cracks and holes.
  • Quick Setting: Sets in 25 minutes and fully cures in one hour, providing fast and efficient repairs.
  • Strong Bond: Forms a permanent bond with most clean and dry surfaces, even underwater with consistent pressure.
  • Post-Cure Workability: Once cured, it can be drilled, tapped, filed, and sanded, withstanding 4370 PSI tensile force and 500 PSI water pressure.
  • Temperature Tolerance: Withstands temperatures up to 250F, making it suitable for various environments.
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4.2 out of 5 stars
stars728 ratings313 reviews
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Reviews summary

Pros

  • : Made to last over time.
  • : Cures in under an hour.
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Showing 1-3 of 313 reviews

Aug 25, 2024
WalmartCustomer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

good for the buck

pros - this is a must-have! it does what it does, and it does it good, it dries quicker than the other ones, easy to mix and durable. cons - it does not work with gasoline as it says, its very little quantity, dries too quick so you need to have a contingency plan before applying, if not it ends up on your glove more than the affected area.

Helpful?5MYUMJHN444G23848095
Nov 1, 2025
Barbie
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Great product!

I have used JB Weld products for many years. I have an outside hose bib with a crack and saw that JB also has a product called Water Weld for plumbing and water applications. What is amazing is that this is so easy to use, had a rapid dry and cure time and hold up to high pressure and is impervious to water. This is a huge savings as repairing yourself will eliminate the cost of a plumber. Definitely a win, win!

Helpful?5MYUMJHN444G23848095
Feb 15, 2026
Robert
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

During a deep freeze I had an outside shallow well pump freeze and develop a small crack in the chrome holding housing. I used JB Water Weld. It's so easy to cut a small piece off the tubular stick, knead it and spread it over the crack. I secured it with a long zip tie. It sealed the crack completely! Saved me having to buy a new pump!

Helpful?5MYUMJHN444G23848095