Does JB Weld Work on Wood? (How To Use It on Wood)

does jb weld work on wood

JB Weld is one of the most popular epoxy adhesives that use to bond different surfaces like metal, glass, ceramic, PVC, and more. Because of having excellent bonding capabilities, most woodworkers are interested in using JB Weld on wood.

Therefore, I’ve researched and tested it on many kinds of woodworking projects to see how well goes with woods.

So, let’s find out, Does JB Weld work on wood?

Yes, JB Weld works well on any type of wood. It makes a quick setting, strong, nearly unbreakable bond with wood surfaces. JB Weld is used for wood bonding and repair and restoring damaged and rotted wood. It cures quickly on wood and is able to drill, sand and paint. JB Weld works great for indoor and outdoor woodworks.

But that’s a quick snapshot of the question.

In this article, we’ll explore deep, Does JB Weld work on wood, how strong JB Weld is on wood, how to use JB Weld on wood, and how to remove JB Weld from wood as well.

Furthermore, I’ll answer some frequently asked questions as well.

Let’s jump in!

Is JB Weld Good for Wood?

JB Weld is an excellent epoxy adhesive for wood. It can use pretty much for any woodworking project to make super strong, unbreakable bonding that cures and set quickly.

Once the JB Weld bond is fully cured, it can be machined, sanded, painted, tapped, dripped, and stained with no issues.

JB Weld bond with wood has high tensile strength.

Therefore, JB Weld can use for both indoor and outdoor woodworking projects such as doors, fences, furniture, floors, windows and so much more.

JB Weld makes a tight bond between wood surfaces. Here’re some qualities of JB Weld epoxy adhesive on wood,

  • JB Weld bond is water resistant and acid resistant. This gives your wood furniture good protection from environmental elements like moisture.
  • JB Weld bond has good shock and vibration resistance. This will make your woodwork dimensional stable
  • JB Weld can withstand extreme temperatures. This is feature is useful for outdoor furniture to resist temperature fluctuations.
  • JB Weld fills gaps and cracks on wood. This is useful for repairing and restoring damaged and rotted wood.
  • JB Weld makes a strong bond between wood parts that does not shrink or crack.

As you can see there’re so many advantages of using JB Weld on wood.

It not only helps wood pieces to tight together but also helps to protect their environmental impacts.

JB Weld is great for

  • Damaged wood parts
  • Rotted wood
  • Indoor and outdoor furniture
  • Window frames
  • Fill cracks and gaps
  • Repair and restore woods

Here’re some popular uses of JB Weld products on wood,

  • JB Weld liquid hardener prevents wood from rotting
  • JB Weld epoxy putty helps to fill gaps in wood
  • JB Weld wood restores fill holes and gaps in wood
  • JB wood weld bonds to wood tightly without foaming or shrinking when repairing the furniture, windowsills, and more

As you can see, JB Weld can be used pretty much for any woodworking project. This is why it has become so popular in the woodworking world.

So, let’s have a look at how JB Weld works on several woodworking projects and furniture.

JB Weld on Wood Table

JB Weld is useful to repair and restore the wood table to its original strength. Plus, JB Weld is great to attach different wooden parts and other materials to a wood table.

It helps to make an unbreakable strong bond with high impact resistance.

JB Weld helps to increase the dimensional stability of the wood table. Therefore, JB applied wood table can use outdoors as well.

For example, JB Weld is excellent for outdoor dining tables.

When repairing a wood table with JB Weld, you can shape and fill JB Weld to cover up and fill all the gaps and cracks easily.

Sanding and drilling are also possible once the JB Weld layer is cured.

Once the JB Weld layer is cured properly, there’ll be no repairing marks stuck on the surface. Therefore, the wood table will look like new.

If the wood table is rotted, remove the rotted area, apply JB Weld on the affected area and let it dry.

This will restore the wood table to its original appearance with extra strength.

JB Weld on Wood Floor

JB Weld works well on the wood floor. You can apply JB Weld on wood floors for a quick fix because usually it cures within one hour.

It provides a waterproof solution by making a waterproof bond with wood floors. It can fill gaps and cracks on a wood floor that happened due to foot traffic and pet scratches.

JB Weld can use as wood floor filler to restore wood floors.

It makes a strong coating on gaps of wood floors which is scratch resistant, and waterproof and it gives a hard-wearing glossy appearance.

How Strong Is JB Weld on Wood?

JB Weld is extremely strong on wood. JB Weld makes a strong, unbreakable bond with wood within 6 minutes with a tensile strength of 1,800 PSI.

JB Weld can withstand extremely high-temperature levels. It works well and is strong on wood even at 5000F (2600C).

The maximum threshold temperature of JB Weld is 6000F (3160C) for 10 minutes. As you can see strong bond JB Weld makes with wood furniture is able to withstand any harsh weather conditions.

It gets the maximum strength out of the JB Weld you need to wait until it is fully cured and set. Once it is set overnight and cured JB Weld can easily manage to stay strong up to 6000F.

JB Weld KwikWood is a two-part epoxy that acts as wood putty. Undoubtedly it makes one of the strongest bonds with wood compared to wood putties.

KwikWood hardens quicker than wood putty and makes a bond with a shear strength of 900 PSI.

JB Weld is strongly bonded with wood. Therefore, the bond can easily tolerate woodworking activities.

JB Weld bonds can be drilled, nailed, screwed, stained, painted, and sanded easily without a single crack or split. It won’t shrink, rot or contact outside impacts.

Overall, JB Weld makes a bond with any wood that is significantly stronger than the original bond between wood fibers.

So, let’s find out how to use JB Weld on wood to repair and restore wood properly.

How To Use JB Weld to Restore Wood?

JB Weld is easy to use on wood to repair, restore and fill gaps and cracks. It increases the durability of the wood and wood resistance against moisture and other elements.

There’re 2 main JB Weld products you can use on wood for various tasks like restoring wood, repairing wood, filling gaps and cracks wood, and more. They are,

  • JB Weld Wood Restore Liquid Hardener
  • JB Weld Wood Restore Premium Epoxy Putty

So, let’s have a look at how to use JB Weld Wood Restore Liquid Hardener and Epoxy Putty on wood to restore properly.

Supplies you will need,

  • JB Weld Wood Restore Liquid Hardener
  • JB Weld Wood Restore Epoxy Putty
  • Rotted wood or more
  • Screwdriver or paint scraper
  • Sandpaper or sanding block (80 or 100 grit)
  • Fine grit sandpaper (180 grit to 220 grit)
  • Tack cloth
  • Paintbrush
  • Paint or wood stain
  • Latex gloves
  • Spreader or mixing stick

Here’re the steps you need to follow to restore wood using JB Weld Liquid Hardener and Epoxy Putty,

  1. Dry and clean the wood
  2. Remove rotted area
  3. Seal wood with JB Weld Liquid Hardener
  4. Let it dry and Cure
  5. Mix and prepare JB Weld Epoxy Putty
  6. Apply JB Weld Epoxy Putty
  7. Let it dry and cure

Let’s discuss each of the above steps separately to get a clear idea of restoring wood with JB Weld.

1. Dry and Clean the Wood

The wood must be clean and completely dry before removing the rotted area. Otherwise, it’s difficult to remove the rotted areas from the surface.

First let the wood completely dry out by keeping it in a dry, moisture-free environment.

If you live in a dry climate, this will take a few days, but for the people who live in a wet climate can take around 2 – 3 weeks.

Airflows, and sunlight, help to eliminate moisture from the wood and dry out, especially the rotted area.

Once the wood is completely dry, clean it using a lint-free soft cloth to remove dust and debris.

Never use soapy water or any other solution when cleaning because the wood needs to be in dry mode.

2. Remove The Rotted Area

Once the wood is completely dry, take the screwdriver or paint scraper and carefully remove the rotted area.

By removing the rotted area, the drying process of the wood will be much faster.

If the wood is still not completely dry out, you can use a heat gun to dry out to dry them manually.

All the impacted wood fibers, loose and unstable wood should be removed with a screwdriver or scraper.

If any remained on the surface while we are applying the JB Weld, that’ll cause so many troubles because rotted areas don’t hold them well.

When removing the decayed, very soft or loose wood keep the wood always dry.

Once you’re done removing the impacted areas, clean the wood well to get rid of dust, dirt, or loose paint residue.

Likewise, proper surface preparation should be done before using JB Weld on wood to get the maximum out of it.

3. Seal Wood with JB Weld Liquid Hardener

Now shake the JB Weld Liquid Hardener bottle well and apply it to the impacted area using the paintbrush.

There should be no rotted areas anymore when you’re applying to JB Weld.

When you’re applying JB Weld Liquid Hardener on wood, don’t dry to thin the liquid. Thick coats help to cover up the wood well and make a strong and tight bond with the surface.

Saturate and soften wood thoroughly with JB Weld Liquid Hardener without missing any spots.

Apply several coats of JB Weld Liquid Hardener until you get a shiny glossy surface with an extra strong bond.

But make sure to let the previously applied coat dry out completely before applying another coat of JB Weld Liquid Hardener on top of it.

4. Let It Dry and Cure

After applying several coats of JB Weld Liquid Hardener, let the wood dry and cure completely before moving on to the next step.

Usually, JB Weld Liquid Hardener hardens and dries within 2 – 4 hours.

After applying JB Weld Liquid Hardener let it dry and cure for about 8 hours.

Once the JB Weld coats are fully dried and cured, clean the surface well and move on to the filling process with JB Weld Epoxy Putty.

5. Mix and Prepare JB Weld Epoxy Putty

While the JB Weld Liquid Hardener coats are drying out you get enough time to prepare and mix JB Weld Epoxy Putty before moving on to the application step.


Make sure to seal the wood first with JB Weld Liquid Hardener or Premium Liquid Epoxy before applying JB Weld Epoxy Putty because there should be no rotted areas and the surface needs to be well prepared to stick wood putty well on to the surface.

Wear gloves and mix equal amounts of Part A and Part B Epoxy Putty using a 1:1 mixing ratio.

Mix both parts well using the mixing stick or by gloved finger until uniform color appears.

Once you get the uniform color by mixing A, and B parts using a 1:1 ratio, you’re good to move into the application step.

6. Apply JB Weld Epoxy Putty

Now apply prepared Epoxy Putty to the impacted areas and fill evenly without missing any spots.

The wood needs to be completely repaired. Therefore, shape the wood putties using your hand and shape them before filling the gaps and cracks of the wood.

Press the Epoxy Putty firmly when filling to get the surface as you want. You should do the application process without leaving Epoxy Putty for too long because it tends to harden quickly.

Apply wood putty until you get the desired appearance of the wood.

7. Let It Dry and Cure

Once you’re done with applying wood putty and get the desired appearance as you want, let JB Weld Epoxy Putty hardens and dries for 2 – 4 hours.

After leaving it for 2 – 4 hours, Epoxy putty is completely hardened, and it won’t crack or shrink. After it is fully dried and cured you can sand, drill, or screw the surface with no issues.

For better protection, I recommend applying wood stain or paint once you’re fully done with the wood restoration process with JB Weld products.

You can apply any type of wood stain evenly throughout the wood, including the restored areas without making any wood stain mistakes.

That’s how you should restore rotted wood with JB Weld.

How To Remove JB Weld from Wood?

Usually, it is difficult to remove JB Weld from wood once it is fully hardened and cured.

But you can remove JB Weld from wood by heating it above 6000F maximum threshold temperature. It will get soft around the threshold temperature level.

But heating JB Weld to extreme temperature can damage the wood and you should do this carefully without damaging the wood.

Other than that, use an angle grinder to remove JB Weld from wood. this also should be done carefully without damaging the wood underneath.

Now you have a clear idea of using JB Weld on wood. So, let’s answer some frequently asked questions to see how JB Weld works on wood.

How Long Does JB Weld Take to Dry on Wood?

JB Weld takes 2 – 4 hours to dry on wood. if the area is well ventilated, JB Weld dries quickly.

Drying time can differ according to the environmental humidity and the dryness of the wood.

This is why drying is so important before applying JB products to wood.

What Is the Cure Time of JB Weld?

JB Weld cures within 2 – 4 hours. In my personal experience, it usually cured properly 6 hours after the application.

During this time the wood should not get in contact with water, dust, or any other elements.

Once the coats are fully cured, they can sand, stain, paint, and drill without shrinking or cracking the surface.

Staining and painting are possible once the JB Weld Wood Restore is completely dried and cured.

Is JB Weld Stronger Than Epoxy?

Yes, JB Weld is stronger than epoxy. JB Weld makes a stronger bond with an impact resistance of 1,800 PSI which can tolerate up to 5000F with no issues.

It bonds tightly with wood fibers and makes bonds stronger than Epoxy.

Did I cover all you wanted to know about: Does JB Weld Work on Wood?

In this article we have deeply talked about does JB Weld work on wood and it goes with different woodworking and furniture applications including wood table and floors.

We have discussed how strong JB Weld is and how to use JB Weld on wood without getting into trouble with simple easy steps.

JB Weld works great on any wood. It helps the wood to restore, fill gaps, and cracks, and improve wood durability and strength.

By applying JB Weld, you will get a strong bond that can tolerate any temperature level and it can withstand harsh weather conditions. Therefore, JB Weld is useful for both indoor and outdoor woodworks and furniture.

Furthermore, we have answered some frequently, asked questions about JB Weld on wood.

Hope you have gained good knowledge about how JB Weld works on wood and how to use it to get the maximum out of it.

Try it on your own and be the one that does wood restoring better than professionals!

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Walter Parker is a woodworking enthusiast. He is passionate about woodworking projects & plays with woodworking tools having spent over 2 decades as a leader for Woodworking Planet. He wants to make people love woodworking! Read More About Him!

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