I Tested 6 Epoxy Wood Fillers: Here’s the Best (2024)

Epoxy wood fillers are the most durable and long lasting wood fillers you can buy. This makes them great for exterior surfaces and larger holes or gaps that need to be repaired like decks and other outdoor projects.

I tested some of the most popular wood fillers to help you find the best one. Let’s dig in!

In a hurry? The best epoxy wood filler is the PC Woody Wood Repair Epoxy. This is a very durable epoxy wood filler at a great price that I love.

Best Epoxy Wood Fillers

• #1 Best Overall – PC Woody Wood Repair
• Best Epoxy Wood Filler for Large Holes – Abatron WoodEpox Wood Replacement Compound
• Best Value – Bondo Wood Filler
• Best Exterior Epoxy Wood Filler – J-B Weld Wood Filler
• Best for Small Holes & Indoor Use – Minwax High Performance Wood Filler
• Best Liquid Epoxy Wood Filler – Abatron Liquid Wood Filler

1. PC Woody Wood Repair – #1 Best Overall

If you’re looking for a high quality wood filler that’s great for all sorts of projects that require extreme strength and durability, I would highly recommend the PC Woody Wood Repair Epoxy Filler.

This is a high tack filler so it won’t sag quite as much as it dries – which is a big benefit.

Like other wood fillers, you can sand and stain this one to match the color of the surrounding wood – although it’s not quite as good as some others.

What I Liked:

• Extremely strong and durable
• Doesn’t shrink a ton when drying
• Versatile and can be used indoors and outdoors
• Can be sanded and stained

What I Didn’t Like:

• Have to mix beforehand, like all epoxy fillers

2. Abatron WoodEpox Epoxy Wood Replacement Compound – Best Epoxy Wood Filler for Large Holes

f you have larger holes that need to be filled, the Abatron WoodEpox Wood Replacement Compound is your best bet. This wood filler is specifically designed for larger holes and gaps which is why it works so well.

If you have rotting wood on your deck or other outdoor project that needs to be replaced – this wood filler is a superb choice. It’s a durable substance that will last for years – making it a good wood filler for outdoor wood surfaces.

From my testing, this is the strongest wood filler you’ll find. Additionally, this filler has lower levels of VOCs making it more environmentally friendly than others I’ve used.

One nice thing about this kit is that it comes with everything you’ll need to apply it including gloves, a putty knife, and measuring cups.

What I Liked:

• Very strong and durable
• Doesn’t shrink much making it great for large holes
• Lower VOCs make it more environmentally friendly
• Comes with gloves, putty knife, and other accessories

What I Didn’t Like:

• Have to mix beforehand
• More expensive than other fillers

3. Bondo Wood Filler – Best Value

Looking for a great wood filler at a great price? The Bondo Wood Filler is another solid epoxy wood filler that will get the job done.

While it’s not quite as strong or durable as the PC Woody Wood Repair or Abatron WoodEpox fillers – this wood filler is by no means weak.

If you have wood surfaces that need to be filled – this two part epoxy filler is the perfect wood filler for the money.

What I Liked:

• Great value for the price
• Doesn’t shrink much when drying

What I Didn’t Like:

• Have to mix filler before using
• Not quite as strong or durable as other epoxy wood fillers

4. J-B Weld Wood Restore Epoxy Putty – Best Appearance

If you’re looking for one of the best exterior wood fillers – the J-B Weld Wood Restore Epoxy Putty is an amazing choice.

This wood putty has the strength and durability similar to the PC Woody Wood Repair and Abatron wood fillers above which makes it ideal for outdoor projects.

This wood epoxy filler also “wins” in terms of appearance. It accepts paint and stain better than other fillers I’ve used so if you’re worried about the overall appearance of your project – this one’s for you.

What I Liked:

• Good value for the price
• Dries faster than other wood fillers
• Accepts paint and stain better than other fillers

What I Didn’t Like:

• Have to mix before using

5. Minwax High Performance Wood Filler – Best for Small Holes

The Minwax High Performance Wood Filler is another great product for any wood surface that needs filling. Whether you’re fixing rotting wood on your deck or working on a piece of furniture – it’s hard to go wrong with this epoxy wood filler.

This wood epoxy filler is perfect for smaller holes because I found that it dries somewhat quicker than other fillers.

It doesn’t shrink a ton like other epoxy fillers and it’s great for both interior and exterior use.

What I Liked:

• Easily available at most home improvement stores
• Pretty good value for the price
• Dries faster than other wood epoxy fillers

What I Didn’t Like:

• Has to be mixed before using
• Great value for the price

6. Abatron LiquidWood – Best Liquid Epoxy Wood Filler

The Abatron Liquid Wood is one of the best epoxy wood fillers you can buy when you consider how easy it is to apply.

Unlike the other wood fillers I’ve discussed, instead of a paste or putty form, this wood filler comes in a liquid form – making it very easy to apply.

If you need to fill deep cracks that you can’t reach with an epoxy putty, this Abatron LiquidWood is a tremendous option.

This liquid wood filler can be used indoors and outdoors and it’s very environmentally friendly with low VOCs.

What I Liked:

• Easy to apply in liquid form and perfect for deeper cracks and gaps
• Very strong and durable
• Dries quicker than most putties or pastes

What I Didn’t Like:

• Still have to mix before application

What to Consider When Choosing an Epoxy Wood Filler

Strength & Durability

An essential quality of any epoxy wood filler is its strength and durability.

The filler needs to be robust enough to withstand wear and tear without cracking or breaking.

While all epoxy fillers are going to be strong, some are still stronger than others.

It all comes down to what project you’re working on. For example, if you’re replacing wood on your deck – you might need something slightly stronger. But if you’re filling wood cracks in a piece of furniture, you can probably get away with something less strong.

Durability also goes hand in hand with strength. By choosing a wood filler that will last, there’s less likelihood that you’ll have to replace the filler in a year or so.

Appearance

Depending on the project, the appearance of your filler should be considered.

For example, if you’re working on an indoor project that’s easily seen – you’ll want to go with a filler that can easily be sanded and stained to match the surrounding wood.

However, if you’re just filling rotten wood on an exterior project, this might not matter quite as much.

Some epoxy resin fillers can be sanded and stained better than others, so be sure to consider this if you’re working on a project that requires it.

Drying Time

Drying time is another consideration when choosing an epoxy wood filler.

In general, epoxy fillers are going to take much longer to dry than standard water based wood fillers but there’s still some variation in how long they take to dry.

Another important consideration related to drying time is how long the filler is workable. This is the length of time you have before it sets and starts curing.

Finally, you have the cure time. This is the amount of time it takes to fully cure and dry completely.

Price

Epoxy wood fillers are going to be more expensive than a traditional latex wood filler, but there’s still a difference in price between different epoxy fillers.

I’ve found that the best epoxy wood fillers are going to cost around $30 and up whereas some basic fillers can cost less than $10.

Pros of Epoxy Wood Fillers

Epoxy wood fillers come with several advantages that make them a valuable addition to any woodworking or home project:

• Strength & Durability: Epoxy wood fillers provide a high-strength, long-lasting repair that can stand up to wear and tear without cracking or shrinking.
• Versatility: Once cured, epoxy wood fillers can be sanded, drilled, painted, or stained just like regular wood, offering a high degree of flexibility in the finishing process.
• Rot and Pest Resistance: They are resistant to rot and pests, making them a perfect choice for outdoor woodworking projects.
• Gap-Filling Capability: Epoxy wood fillers are excellent for filling large gaps or cracks that other types of filler might struggle with.

Cons of Epoxy Wood Fillers

Despite their strengths, there are a few disadvantages to using epoxy wood fillers that one should keep in mind:

• Price: Epoxy wood fillers tend to be more expensive than other types of wood fillers. This can be a consideration for budget-conscious woodworkers or large-scale projects.
• Workability: Some epoxy formulas can be challenging to work with, requiring careful mixing and application. The quick drying time of some epoxies can also be a challenge if adjustments need to be made after application.
• Correction Difficulty: Once cured, removing or correcting epoxy can be difficult. This means mistakes can be permanent or difficult to rectify.
• Safety Precautions: Epoxy fillers often require safety precautions during application, such as wearing gloves and ensuring good ventilation due to potentially strong fumes.

How to Repair Wood with an Epoxy Wood Filler

1. Prepare the Wood

First things first, preparing the wood for your wood epoxy putty is essential. Be sure to clean out the wood and remove any rotted wood so that your filler can better adhere to the wood in good condition.

Any decayed wood will get in the way and make it difficult to conduct wood repairs that are necessary. You can use a sander, putty knife, or chisel to remove soft wood.

2. Prep Your Wood Epoxy Resin Filler

All wood epoxy resin fillers will require you to mix them before you can start applying them. They come in two parts, which will be clearly labeled.

It’s critical to read the instructions of your wood filler so you know exactly how much of each part is needed before applying.

If you don’t mix the correct amounts of your wood filler, it may not adhere well and lose some of its strength.

Be sure to follow all of the safety precautions on the label so you don’t have to make any emergency room visits.

3. Apply Wood Filler

Once you’ve mixed your filler, it’s time to apply it. This step is pretty straightforward step.

Be sure to press down into the wood that you’re filling. I’ve found that using a putty knife is the easiest way to rebuild and restore wood so you can get into all of the crevices.

If you’re using a liquid filler, you can use a paint brush to work your way into the gaps and cracks.

4. Allow it to Dry

Once your wood filler has been applied, it’s important to give it time to fully cure. The time it takes wood filler to dry will depend on the conditions in which it’s applied, but most epoxy wood fillers will be dry in48 hours or less.

5. Apply Additional Coats (Optional)

Depending on the filler you’re using, you may want to apply additional coats if the first coat has shrunk. Be sure that your filler has completely dried before applying another coat

6. Sand & Stain Filler (Optional)

Once your wood filler has dried, you can sand, paint, or stain it to match the surrounding wood. This step is optional depending on the project you’re working on.

Are you wondering how to blend LiquidWood and WoodEpox? Check out the video down below!

Final Thoughts

Epoxy wood fillers are great options for restoring wood and getting it back to good condition. Whether you’re working on wooden furniture or another wooden surface – making repairs with an epoxy filler will ensure it lasts for years.

Overall, the best epoxy wood filler is the PC Woody Wood Repair Epoxy. This is an extremely strong epoxy wood filler that will last for years. It’s great for projects that need extreme durability and can withstand the elements.

If you want the best wood epoxy putty in terms of strength and durability – go with the Abatron WoodEpox Wood Replacement Compound as it’s a great heavy duty wood filler.

If you’re looking for something a little more budget friendly, go with the Bondo Wood Filler. This is a great general epoxy wood filler that’s versatile and effective.