JB Water Weld Pool Repair – Is It Possible?

• Post By: Brandon M. Fox  • Updated: 04/02/21
• JB Weld

Are you a beginner in cold welding and wondering what is a water weld? Well, water weld is a specially designed two-part putty for underwater repairing.

This is a very common and widely used product for repairing purposes. Water weld forms a very strong and permanent bond. It is also water, oil, and gas resistant.

So, once you apply this properly, it will last you a lifetime. Now, let’s dive in to know more.

Can JB water weld use for pool repair?

A pool is a body of water, often outdoors and typically surrounded by a wall or barrier. The goal of swimming pools is to provide a clean and safe recreational area for people to enjoy themselves. Swimmers often use pool-shaped equipment such as noodles, ropes, and kickboards to provide challenging exercises and improve their swimming skills. People who do not swim can also enjoy the pool because it is shallow enough for them to stand up and play with other children.

JB Weld Pool Repair is a rapid-drying, two-part epoxy that can be used to repair various surfaces. I have been told that it is not recommended for use as a patch on the floor of a pool because it is not as heavy as some other materials which may cause the floor to bow.

What is water weld?

Water weld is a putty system specially designed for plumbing and underwater projects.

It is a two-part putty that is ideal for sealing any crack and holes. You need to prepare the putty before applying it to the desired location.

First, measure the amount of putty you need and cut it out. You will see there is 2 colors of putty inside the roll.

Start kneading the putty until it forms one uniform color. After that, you can apply this to the desired piece. Wait until it cures completely.

What is water weld used for?

Water weld is mainly designed to work in a moist area. Such as repairing water sources, plumbing, underwater projects, and so on. You can fix tub, shower, plumbing these types of household items with water weld easily.

Industrial fuel and water tanks, drainage, marine boats, etc. are also compatible with this water weld. But you can use water well on other objects as well.

Water weld is applicable on:

  • Automobile.
  • Fiberglass.                                                                        
  • Metals.
  • Plastics, PVC.
  • Composites.
  • Ceramics.

What to look for in water weld?

The basic things you should look for in water welding are:

  • The maximum tensile strength of the water weld. It will determine how strong the bond will be.
  • The maximum permeable heat. Beyond this point, the bond will not hold up.
  • If the weld is compatible with vibration and impact load.
  • Where you can apply the water weld.
  • How much pressure it can withstand?
  • How to knead the water weld.
  • These are the common things you should look for in any water weld.

Frequently Asked Questions (FAQs)

Q. What is the JB water weld cure time?

JB water weld needs 15-25 minutes to set. And it takes 1 hour to completely cure.

But if the putty isn’t kneaded enough before applying, then it might take longer to cure. In the worst case, it might never cure properly. So, make sure you need the putty properly.

Q. Does JB water weld really work?

Well, it depends on what surface you are applying the putty on. You can apply it on any metal, plastic, PVC, composites, fiber, or ceramics surface. It will work magic for you.

But you have to be careful about the pressure and temperature of that surface. And also let it cure properly. Only then the water weld will work perfectly. This is crazy but you can drill, sand, and even paint it afterward.

Which JB weld is the strongest?

The original JB weld is the strongest. It is a two-part epoxy cold weld system. It has a tensile strength of 5020 PSI after being fully cured.

Is JB water weld permanent?

The answer is YES. JB water weld is a permanent solution for all of your plumbing and underwater repairing works.


We hope we were able to answer your question about what to Look for in a water weld?

Water welds are mainly designed to work underwater. But you can also make the most out of it by using it for other purposes. Water welds are a versatile and multi-use product as well.

You can call water welding a one-stop solution for various problems.

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Brandon M. Fox

I have completed Diploma at Welding. I have spent 10+ years in Welding. Now love to write about welding and welding products and share my own experiences. Find me: Twitter | Facebook