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Dual-purpose filler for everything from nail holes to wood grain.

Versatile Wunderfil™ works great on both finished and unfinished wood. Use full strength for holes or thin with water for filling open grained woods. A water-based, stainable formula makes cleanup a snap! Original Natural Oak Wunderfil comes in four sizes.
Grouped product items
Product Name Price Qty
Wunderfil Wood Filler - Natural Oak, Pint
Wunderfil Wood Filler - Natural Oak, Pint Item #: 92750
In stock
$14.99
Pint
Wunderfil Wood Filler - Natural Oak, Quart
Wunderfil Wood Filler - Natural Oak, Quart Item #: 82347
In stock
$19.99
Quart
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Natural Oak Wunderfil Wood Filler in Pint and Quart sizes

Item #
GRP2003_3
Rating:
82% of 100
23  Reviews

Dual-purpose filler for everything from nail holes to wood grain. Versatile Wunderfil™ works great on both finished and unfinished wood. Use full strength for holes or thin with water for filling open grained woods. A water-based, stainable formula makes cleanup a snap!

(1) Natural Oak Wunderfil Wood Filler, Pint or Quart
More Information
Brand Wunderfil
Weight 3.1900
Technical Documents
Size Pint, Quart
Species Natural Oak

Keep out of reach of children. CAUTION: Avoid breathing sanding dust. Use and OSHA-approved dust mask. Contains silica. Do not ingest.

Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood

Prop 65 WarningWARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

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4.1 / 5.0
23 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
14
3
2
2
2
Wood filler
Absolutely the BEST wood filler/grain filler I have ever used. Sands superbly, takes stain and clear coat well. I will not use another brand again.
December 31, 2017
Purchased
 1 year ago
Woodworking Experience:
Advanced
good stuff
it is the easy way to fill nail holes, cracks and any bad places on your lumber. and it dries well for sanding.

I have enough to last for years, just hope it does not dry out
in the container.
thaks
Clyde
November 27, 2017
Purchased
 1 year ago
Great Product
If you want to mix your own filler, be my guest. If you don't, this is the product for you. Just open the container, fill the unwanted and create a new floor. Don't get any easier!
April 4, 2017
Purchased
 over 2 years ago
Woodworking Experience:
Advanced
Wunderfil Wood Grain Filler is a super product.
I have been using Wunderfil Wood Grain Filler for over ten years, especially on oak, but it works equally well on every wood species I have tried it on, it takes both pigment and dye stains perfectly, and products the most beautiful finish on any wood. It makes me look like I am a gifted woodworker. I believe any one trying this product will be very happy with the results.
October 27, 2016
Purchased
 over 2 years ago
Woodworking Experience:
Advanced
A really fine filler
I work mostly with oak and use this exclusively for filling holes and grain. It is the best product that I have found for these purposes. It takes stain really well as well as oils and shellac. It makes my projects look really sweet.
October 20, 2016
Purchased
 over 2 years ago
Woodworking Experience:
Intermediate
wonderfill
what is there to say other than there is no better grain filler. It drys hard and sands great. I've used it on many projects with great finish results
August 8, 2016
Purchased
 over 3 years ago
Woodworking Experience:
Intermediate
I built all new oak raised panel doors for my kitchen and used it exclusively on the doors & cabinets. It is very easy to work with, accepts stain great and sand very smooth. It can also be thinned and apply over the entire surface then sanded down for a glass smoothness. Just make sure you tighten it complete for storage and it will last quite a while no dry up. It is the only filler I will use now. It was recommended to me by a far superior cabinet maker than myself.
March 30, 2016
Purchased
 over 4 years ago
Fills in grain for enameling.
Works well.
November 30, 2015
Purchased
 over 4 years ago
Good shtuff!
I bought a couple of quarts and put it in empty caulking tubes that I got from Amazon. It's the only way to go if you have a large project like chinking gaps in boards. A good variety of colors too.
May 5, 2015
Purchased
 over 4 years ago
Woodworking Experience:
Advanced
I love this product. Very easy to work with makes the finish like look like glass
May 4, 2015
Purchased
 over 4 years ago
Woodworking Experience:
Intermediate
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Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 5 questions Browse 5 questions and 11 answers
Why did you choose this?
Rockler Store
This will be my first time using this product. I chose it based on the product description.
John N on Jun 4, 2018
see if it works
MICHAEL S on May 1, 2018
This will be my first time using this product. I chose it based on the product description.
John N on Jun 4, 2018
snipes and other imperfections to patch a countertop.
Isaac L on May 6, 2018
see if it works
MICHAEL S on May 1, 2018
Stainable
Lowell N on Apr 29, 2018
have used in the past as pore filler and it works well, thinning it is tedious but worth it
Thomas O on Feb 9, 2018
I've used this product before and unlike other brands it doesn't dry out in the container over time. It spreads well and fills nail holes or voids in wood fairly well.
David T on Aug 16, 2017
This stuff is great, barely visible after staining
Claude R on Aug 7, 2017
Not completely satisfied with the product.
manuel g on Mar 24, 2017
Sounded fairly easy to use. Haven't tried product yet.
Susan P on Feb 8, 2017
The reviews I saw were great, my husband needs grain filler.
Gail S on Jan 18, 2017
To patch gaps and holes in my existing workbench.
Stan B on Dec 31, 2016
you could never sand oak smooth w/out filler
Michael G on Nov 3, 2016
I couldn't find it anywhere in town.
Michael H on Oct 19, 2016
I have used this product many times and it performs perfectly, it fills the grain in open pored woods, sands easily, stains perfectly, and takes every finish product I have tried beautifully. It makes me look like I am a talented woodworker.
KenEng. on Oct 16, 2016
Best wood filler product I have ever used.
G Richard H on Aug 26, 2016
Works great
Karen S on Apr 29, 2016
I chose this from reading comments from other people
Jennifer P on Apr 17, 2016
I USE IT AS A GRAIN FILLER ON THE OAK THAT I BUILD WITH.
Clint B on Mar 26, 2016
I needed it!
Joseph H on Jan 23, 2016
I use white oak, a very good old wood worker said this is the best he found, so instead of me buying different types,his knowledge was free.
Dave on Jan 18, 2016
because you didn't have white oak in quarts
t on Jan 5, 2016
Sanding and Refinishing oak stairs. Recommended by a co-worker to fill grain and smooth. I have purchased this product in the past and it does a very nice job.
Stan O on Dec 21, 2015
Internet reviews
Nathaniel R on Dec 3, 2015
great stuff. will order again when needed.
Rick Z on Oct 5, 2015
I needed a good pore filler for oak, and it has worked very well.
Donald S on Aug 20, 2015
Read much information on painting oak kitchen cabinets - expecting this product to fill the "grain" of the wood to assure I will get a great painted finished product.
Betty E on Aug 12, 2015
The only product of this kind that Rockler sells.
Andrew on Aug 7, 2015
Restoring and refinishing an oak floor.
William C on Jul 19, 2015
Chose because of previous experience and customer reviews
HERBERT W on Jul 1, 2015
I have used this product recently and am incredibly impressed with it. It is both versatile and easy to use.
Robert D on Jun 10, 2015
Stuff works great
Claude R on May 29, 2015
I've used this product before and it works well.
Sean N on Apr 18, 2015
snipes and other imperfections to patch a countertop.
Isaac L on May 6, 2018
Stainable
Lowell N on Apr 29, 2018
can the wunderfil putty used on outdoor projects?
Richard P on Aug 10, 2016
Has anyone used this product successfully to fill the grain on oak cabinets for painting?
chergen19 on Mar 30, 2016
BEST ANSWER: I built all new oak raised panel doors for my kitchen and used it exclusively on the doors & cabinets. It is very easy to work with, accepts stain great and sand very smooth. It can also be thinned and apply over the entire surface then sanded down for a glass smoothness. Just make sure you tighten it complete for storage and it will last quite a while no dry up. It is the only filler I will use now. It was recommended to me by a far superior cabinet maker than myself. Good luck with it.
Can Wunderfil Wood be stained with an oil based stain after it is dried and lightly sanded?
Willard on Aug 12, 2015
BEST ANSWER: I have used the Wunderfil grain filler products with oil based stains for at least ten years now, it works perfect with oil based stains.
I applied thick paste initially on the back of cabinet doors. Do I sand all the way so I can see the grains again? Or would the shellac-based primer take care of that? Do I even need a shellac-based primer after wunderfil? Thanks.
Rissa H on Apr 24, 2018
BEST ANSWER: Y0u definitely have to sand .
What is the best way to apply this filler to red oak table legs? On or off the lathe? ... and how?
TimBo266 on Jun 29, 2016
BEST ANSWER: I have found that I can apply the Wunderfil grain filler by hand, it applies very well this method to turned pieces, either in the lath, or out; after drying, just lightly sand it with a fine grit paper, and you will have a beautiful surface.
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