Best Epoxy Wood Filler

6 Best Epoxy Wood Fillers (Tested & Reviewed in 2023)

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.

In this post, I’ll explore the best epoxy wood filler you can buy, what to look for when purchasing wood filler, and much more.

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.

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Best Epoxy Wood Fillers

1. PC Woody Wood Repair – #1 Best Overall

PC Woody Epoxy Wood Filler
PC Products PC-Woody Wood Repair Epoxy Paste, Two-Part 96 oz in Two Cans,…
  • Two-part epoxy paste to replace missing or rotted wood is resistant to dry rot, UV light, fresh and salt water
  • Can be used in indoor and outdoor applications with an application temperature range of 35 to 115 degrees F…
  • High tack helps reduce drips and sags while hardening

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 ā€“ which is a big benefit.

Like other wood fillers, you can sand and stain this one to match the color of the surrounding wood ā€“ 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

My Thoughts:

Overall, this is one of the best epoxy wood fillers you can buy for several reasons. It’s somewhat affordable compared to other fillers and it has all of the strength and durability you’d want. This wood filler can be used both indoors and out making it an exceptional filler for any project. My only complaint is that you have to mix it beforehand ā€“ but that’s expected being an epoxy filler.

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

Abatron WoodEpox Wood Filler
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Abatron WoodEpox Kit - 2 Quart - 2-Part Structural Epoxy Adhesive Filler -...
764 Reviews
Abatron WoodEpox Kit – 2 Quart – 2-Part Structural Epoxy Adhesive Filler -…
  • REPAIR DAMAGED WOOD: Fills and rebuilds missing sections to help restore windows, doors, trim, columns, posts, and other elements. Permanently repairs damage caused by weather,…
  • EASY TO USE: Our wood epoxy has a 20-30 minute pot life (working time) and can be mixed and applied by hand. It can be painted, stained, drilled, carved, sawed, nailed, planed,…
  • GREENGUARD CERTIFIED: This product contains almost no VOCs (volatile organic compounds) and does not have water or solvents. It has a low odor and is a clean, safe wood repair…

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 ā€“ this wood filler is a superb choice. It’s a durable substance that will last for years ā€“ 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

My Thoughts:

If you’re looking for the best wood filler for large gaps and holes ā€“ the Abatron WoodEpox is a great choice. When cured, this filler can actually be stronger than real wood making it great for projects that require extreme strength. It’s more expensive than other fillers, but I believe it’s worth it. Overall, this is one of the best epoxy wood fillers you can buy because of it’s supreme strength and durability. I’ve used this one a handful of exterior projects and it works amazing.

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3. Bondo Wood Filler – Best Value

Bondo Wood Filler
Bondo Home Solutions Wood Filler, Sandable in 15 min, 1.9 lbs with 1 oz…
  • TWO-PART FORMULA chemically bonds with surface to adhere permanently
  • QUICK, DURABLE REPAIRS to damaged and rotted wood
  • USE ON MOST WOOD-BASED interior or exterior surfaces

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 ā€“ this wood filler is by no means weak.

If you have wood surfaces that need to be filled ā€“ 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

My Thoughts:

If you want to fill holes on a budget, this Bondo epoxy wood filler is a great option. Whether you’re dealing with rotted wood or you’re refinishing a piece of furniture ā€“ you can’t go wrong with this wood epoxy filler.

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

J-B Weld Wood Restore Epoxy
J-B Weld 40007 Wood Restore Premium Epoxy Putty Kit - 64 oz.
657 Reviews
J-B Weld 40007 Wood Restore Premium Epoxy Putty Kit – 64 oz.
  • WOODRESTORE: Is a hand mixable epoxy putty specially formulated to repair and rebuild wood quickly and easily….
  • WHAT THE PROFESSIONALS USE: Builders, mechanics & repair pros know our products bond strong to a variety of…
  • EASY TO USE: It can be used to fill, build, reinforce or bond wood surfaces. It contains no solvents, will not…

If you’re looking for one of the best exterior wood fillers ā€“ 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 ā€“ 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

My Thoughts:

Overall, if you’re looking for a great wood filler for decks or other outdoor projects ā€“ the J-B Weld Wood Restore Epoxy Putty is a great choice. It’s strong, durable, and easy to use. Unlike some other fillers, the J-B Weld Wood Restore Epoxy Putty adheres well to both treated and untreated wood, ensuring a seamless and solid finish. Once cured, it can be sanded, drilled, painted, or stained, making it versatile for various woodworking tasks. So, for those in need of a trustworthy wood filler for exterior use, this product certainly ranks among the best.

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

Applying Minwax Wood Filler
Minwax 21600000 High-Performance Wood Filler, 12-Ounce Can
  • This item is a Minwax High-Performance Wood Filler, 12-Ounce Can #21600
  • Purpose of use for Hardware, wood-fill
  • This product is manufactured in United States

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 ā€“ 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

My Thoughts:

If you’re looking for a versatile wood epoxy filler that works indoors and out ā€“ the Minwax High Performance wood filler is worth a look. While it’s not quite as strong or durable as other epoxy fillers, it comes with a lower price tag and dries faster than the others ā€“ which I appreciate. This is one of the best wood fillers for furniture and other small tasks that don’t need maximum strength. But don’t get me wrong ā€“ this filler is still really strong! Just not quite as strong as some others.

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6. Abatron LiquidWoodBest Liquid Epoxy Wood Filler

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Abatron LiquidWood Kit - 12 Ounce - 2-Part Structural Wood Epoxy Resin -...
382 Reviews
Abatron LiquidWood Kit – 12 Ounce – 2-Part Structural Wood Epoxy Resin -…
  • Includes: 6 oz. Part A, 6 oz. Part B
  • For Use On Windowsills, Sash, Frames, Columns, Floors, Millwork, Antiques, Furniture, Posts, Structural…
  • Strengthens And Hardens Rotted Wood

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 ā€“ 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

My Thoughts:

If you’re looking for a great wood filler that’s easy to apply ā€“ you can’t go wrong with the Abatron Liquid Wood. This liquid wood filler works perfectly for those deep gaps that you can’t easily reach with a typical epoxy putty. If you have missing wood that’s in a tough to reach area, this is the best wood epoxy filler for you.

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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 ā€“ 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 ā€“ 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.

Are you looking for a exterior wood filler? Check out the best exterior wood fillers in 2023!

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

Mix 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 ā€“ 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 ā€“ 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.