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CrystaLac® Clear Waterborne Wood Grain Filler

Clear wood filler dries rapidly for quick sanding.
Item #
70% of 100

Clear wood filler dries rapidly for quick sanding! It's great for exotic woods that are colorful, and it can be tinted with dyes or colors to match the wood. Makes an ideal wipe-on sealer for porous woods.


  • Just wipe on and trowel off with sanding between coats
  • Apply several coats on deep holes
  • It can be tinted with dyes or colors to match the wood
  • For best results, stain wood before applying filler
  • Minimal shrink formula
Caution: Avoid breathing sanding dust. Use an OSHA approved dust mask. Contains silica. Do no ingest. Keep out of reach of children. Keep from freezing.
(1) Quart of CrystaLac Wood Grain Filler
More Information
Brand CrystaLac
Manufacturer Part Number WOOD GRAIN FILLER QT
Weight 2.3500
Size Quart
3.5 / 5.0
61 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Easy to apply and sand. Depending on how many coats apply it does seem to cloud up in some grain. Applied 1, 2, 3, 4 coats and 2 coats seems to be the best.follow directions and make sure you do a test board.
January 8, 2020
3 months ago
Woodworking Experience:
Great product. Wish you could carry the Brite tone
November 20, 2019
5 months ago
Woodworking Experience:
Works well, easy to sand
November 1, 2019
over 2 years ago
Woodworking Experience:
Good stuff maynard,
July 9, 2019
over 4 years ago
Buy it!
A really superb product!
April 20, 2019
1 year ago
Woodworking Experience:
Great coverage
My wife wanted a lingerie chest of drawers but she wanted it painted white. I had a ton of oak laying around but hate how it looks when painted. I built the chest and used this on all the oak, drawer face, sides and top. When I painted, it was as smooth a baby's bottom. It left a clear glossy finish like I made it with poplar or similar. I used a lot of coats just because I wasn't sure how much it needed but I still had 1/4 of the quart left when I finished. I'm building a rocker for my granddaughter out of oak and she wants it painted and I will absolutely use this again. Very happy with the results!
User submitted image
User submitted image
January 26, 2019
Woodworking Experience:
Wood grain Filler
Crystalac is a water base product that is easy to apply and easy to work with. My experience was better than expected. It filled in and smoothed out the oak that I was working on making for a great finish.
May 20, 2017
over 2 years ago
Woodworking Experience:
Great product
This product goes on easy and it is easy to work with. My results I wanted to accomplish was nice.
May 13, 2017
over 2 years ago
Woodworking Experience:
Great filler
Crystalac is a great wood grain filler. Used it with oak and being careful with the application one coat was all that was needed.
October 14, 2016
over 3 years ago
Woodworking Experience:
Good stuff
I use it a lot expecially when working with exotic woods. I apply by hand with rubber gloves and rub it in until it is not detectable to the naked eye. Then sand with my Klingspor sanding mop. Sometimes more than one coat is needs but it does the job. Particularly good where you are not applying a stain.
June 14, 2016
Woodworking Experience:
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Browse 20 questions Browse 20 questions and 42 answers
Why did you choose this?
Rockler Store
I got spots in my wipe on oil finish. Supposedly due to oil seeping out of pores. Want a glass finish in mahogany so will try this.
Howard F on Sep 24, 2019
see if it works
MICHAEL S on May 1, 2018
I got spots in my wipe on oil finish. Supposedly due to oil seeping out of pores. Want a glass finish in mahogany so will try this.
Howard F on Sep 24, 2019
We have used this grain filler on some of our cabinet making projects and have been quite please with the results. Thus when the current fabrication project came in, we are returning to the product that we found pleasing.
Daniel K on Nov 10, 2018
see if it works
MICHAEL S on May 1, 2018
painting oak cabinets
Kurt Z on Jan 4, 2018
Sealing and hiding grain for old oak cabinet I am painting
Thomas R B on Aug 30, 2017
To fill an open-grained oak table top
John on Jul 10, 2017
I want to have the tops of the tables smooth. I have used grain filler many times, but never have used CrystaLac. I am hoping that this works well.
Paul M on Jul 6, 2017
Initially, read good reviews. After using it for a year I am very pleased. It does what it's supposed to do.
Lew S on Mar 11, 2017
try it
mark c on Nov 2, 2016
Rec-emended by my son
robert b on Oct 17, 2016
I need a grain filler for oak cabinets. This is specifically designed for this situation. There are other products that can be used but their design is for other uses.
Robert E B on Sep 12, 2016
Blizz on Jul 10, 2016
Hope to get a polished look finish on Red Oak without the typical deep grain groves.
Grant C on Jun 13, 2016
to improve the quality of my wood finishing
DOUG T on May 15, 2016
To improve the finish on the guitars I am building.
KENNETH M on May 2, 2016
antique radio cabinet restoration hobby
Christopher Y on Apr 5, 2016
Was recommended on the Antique Radio Forum
James O on Mar 25, 2016
I've used this in the past; it works great.
Mark H on Mar 25, 2016
I had an order for a round kitchen table on a pedestal to be made of red oak. I wanted a very even colored, smooth glass like polyurethane finish on this very open grain wood. It was beautiful.
Carl B on Feb 21, 2016
I am running out
Temple B on Feb 8, 2016
Works wonderfully
James P T on Jan 26, 2016
read that it is a good grain filler and it proved to be great for the jobs I needed it for.
Raymond S on Jan 9, 2016
To try it out on an Oak project where I need a mirror finish.
Edward S on Dec 17, 2015
Your review said that this is good to cover woodgrain on furniture. To get a slick finish.
James R on Dec 14, 2015
To fill grain in segmented turnings
Mark R on Dec 13, 2015
discussion with sales person in store
dOUG H on Dec 1, 2015
I read the report and how this item works and the ease of using it.....
jim s on Nov 29, 2015
I thought I could try it out
Paul B on Sep 8, 2015
needed it for a Chinese bench made of oak and a new walnut table top on and antique table frame
Paul S on Aug 27, 2015
Making an oak table top and want to fill the grains in the oak plywood.
STEPHEN B on Aug 9, 2015
I'm impressed with the ease of use; does a great job of filling the wood in my scroll saw projects. I finish some of my wood with lacquer and the nice part is the wood still keeps its natural beauty.
Gerald S on Jul 12, 2015
Trying this product to help get a mirror type finish.
Guy on Jul 11, 2015
preparing a finish sample on teak for a clear, full fill finish.
JIM T on Jun 30, 2015
need a product that will do what it proclaims.
stephen b on Apr 20, 2015
We have used this grain filler on some of our cabinet making projects and have been quite please with the results. Thus when the current fabrication project came in, we are returning to the product that we found pleasing.
Daniel K on Nov 10, 2018
painting oak cabinets
Kurt Z on Jan 4, 2018
Can this product be used on marine mahogany planking under oil based marine finish?
John F on Jan 19, 2016
BEST ANSWER: The water evaporates when dry, but I have used a seal coat of shellac between water based and oil finishes with good results.
I'd like to use a stained wood filler to bring out wood grain in otherwise blah pieces. Can CrystaLac be heavily tinted with either dye stain or liquid dyes to accomplish this?
Monday317 on Dec 28, 2016
BEST ANSWER: I have added die to the filler and it worked ok but I have stained over top of it.
I am building a project using Hickory, a very heavy and dense wood and plan to use a spray lacquer. The wood has been sanded to a 600 grit and I want to know if given the grit and the wood is it still recommended that I "level" it first? What is the best way to test to see if I need this?
Mark M on Jun 2, 2016
BEST ANSWER: absolutely not with crystalac. If you absolutely want to use lacquer then the sealer will be plenty. a couple coats with the sealer followed by light sanding with 300-600 grit. then the final coat will suffice. However you may consider using a product called waterlox, which is a tung oil based finish and and is very easy to apply. I've used pre-cat lacquer for years and waterlox for years.. years after application the waterlox looks far better then any lacquer i have ever used, especially in color. I use waterlox original for the first coat, wipe on liberally reallly let it soak in, then wife off. followed by several coats of waterlox satin, wiped on then quickly wiped off.
We "oaked out" and wanting to paint our staircase and want as little grain showing through the paint as possible. Paint stores say clean, sand, primer, sand, primer, sand, and on and on. We realize this is going to be a tedious project, but we do have more time than money and hope to get a good result. Will your wood grain filler do the trick?
Suzanne M on Jan 15, 2016
BEST ANSWER: Clean your project with water and a little dish detergent. Squeegee the Crystalac into the open grain. A little goes a long way. Let it dry and harden at least overnight. Lightly sand and then prime. Touch up with more Crystalac in places you may have missed, sand and reprime those areas. Sand those spots then paint as you wish. You should end up with a very smooth surface. Good luck
Bill T on Oct 20, 2015
BEST ANSWER: My project was a 22" x 96" tabletop. 2 applications of area and less than half used. Used as directed on unfinished wood. When clear coat was applied, white blotches appeared = a lot of sanding. Checked internet forums and same issues. Thought it was just me. On stained wood, it worked great. Will cover big projects...Hope it helps
Can I use this product over tongue oil ?
Joe T on Oct 9, 2019
BEST ANSWER: Joe: Yes you can if the Tung Oil is cured, a few days should do it. I would put a couple of coats on the wood first, let it dry, then do your grain filling. Hope this is of some help to you.
Can this product be used to fill gaps?
Stacey N on Sep 20, 2019
BEST ANSWER: Not sure if you can use it to fill gaps. The purpose is more of filling wood grain. I would try it on a sample piece putting small amount at a time let it dry and it will fill them I'm sure. But the filler will be clear in color when you're done
Will this product work to fill a chunk of missing wood in a board of raised scraped oak hardwood that’s been stained and clearcoated already?
I just want to fill the 3 inch long half inch wide third of an inch deep area with some clear filler that will stay strong even if a chair leg is settled on to it after proper curing time. Will this project be strong enough or should I be using a clear epoxy instead
A H on Jan 29, 2020
No, I wouldn’t use the CrystaLac Clear.
It wouldn’t be near strong enough. It’s really intended for filling wood grain pores and I’m not sure it would produce the perfectly clear finish think you’re after. It would need to be sanded after drying to feel flat and smooth.
I think you’re best off with the clear epoxy idea. That will be super strong. With very careful filling you should be able to just let it cure to a flat and smooth level with the surrounding wood.
After following the instructions and reading advice posted on rockler, I put two coats of crystalac on my mahogany piece. I went great except for, it seems to dull/not clear in certain spots. I can't figure out why these spots were different. It looked fine and level after application. I am learning constantly at this point so any advice on how to smooth out my issue is welcome. Thanks.
Bri B on Feb 26, 2016
BEST ANSWER: This generally happens to wood that isn't stained or treated with something prior to applying this product. The only way I found to remove blotches was to sand them out, and that means the whole project usually. When you think you have sanded it down enough, take a damp cloth and wipe it to see if there are still remaining blotches, If so, keep sanding. Good Luck. I ended up just using clear coats then wet sanding-then polishing-then waxing like you would a vehicle.
When turning a piece of wood, sometimes the piece will have open pores in places. Is this a good product for that?
Stan Z on Feb 20, 2020
BEST ANSWER: It's primary purpose is to give you a really even surface on things like table tops on wood with a lot of pores like oak. I suppose you could use it when you have finished turning a piece and before you finish it. The tricky part would be that you put a coat on (and it's kind of thick and white) and then before it dries you scrape it off so the product is only left in the pores. That could be doable for something larger like a bowl but a spindle might be tough. The CrystaLac company has a video on how to use it. You might want to watch it to get a better idea of what I am describing.
I'm unclear on this. Can Crystalac be stained (MinWax) AFTER it has been applied, and sanded?
L M on Dec 22, 2018
BEST ANSWER: Absolutely. I use this before staining because it evens out the color.
i have already stained my oak table top and have some minor grain that i need to fill can i use this on top of the stain and then put clear urethane on or should i try to fill grain with the urethane an answer would be appreciated ?
jack o on Feb 25, 2018
BEST ANSWER: If you put the filler over the stained surface, the stain will be removed when you sand the sealer off. It is very difficult to fill the grain with urethane. The best thing to do is put three coats of urethane on and then use the filler. When you sand down the filler make sure you only sand through the third coat off urethane so you do not damage the stain.

will it yellow in sunlight?
Damien L on Jan 14, 2017
BEST ANSWER: I don't think so. But just make sure that you use it only to fill the pores and wipe of all the rest, Let it dry properly than do the sanding . It leaves a nice smooth surface.
Have several oak projects ...large built-ins in LR, kitchen cabinets, stairs & banisters, and bathroom vanities. I want to COMPLETELY cover and smooth the heavy oak woodgrain before painting - some black, some white. I'm a DIY-er and this is my first grain-filling project. There is a shiny clear coat on all the oak, I assume poly?? What are my steps? Can this be applied directly to the cleaned shiny poly w/ no sanding first? Then follow w/ primer? Or should I sand, prime, then do grain filler?? (I realize I need to sand between coats, just wondering if I need to sand to start.) I've researched many grain fillers, I think this one looks easiest to use, esp for a first-timer on such a big project. Please help! Much appreciated!!
J. H on Apr 8, 2016
BEST ANSWER: Have never used this product in this fashion. But, I will say this as a x body man I never applied any kind of filler over a shinny surface because it would de-laminate over time. Sand your surface first and then go back over again with scotch bright to try to nock the shine off in the pours and then apply your grain filler.
Is Crystalac OK for filling the grain on an EXTERIOR door?
James E L on Nov 14, 2015
BEST ANSWER: You should be able to use it on a exterior surface, providing you use a exterior finishing product after completing the filling. Good luck.
Can this be used on vertical surfaces? If so, any suggestions?
Greg B on Dec 2, 2017
BEST ANSWER: Yes, It’s thick consistency allows it to be used on vertical surfaces. Best to apply in several thin coats without much excess to avoid extra sanding, but it does powder pretty nicely when it comes time to sand it.
Can this product be used for the cerusing technique? I am currently putting one layer of thinned latex on raw wood oak cabinets then putting one layer of water based General Finishes High Performance Top coat and I need a tinted grain filler to accentuate the grain and then I will put two more layers of GF top coat to protect and seal the cabinets. I need a good grain filler that doesn't wipe out as easily as furniture wax, something that can be tinted and something that can be top coat sealed with GF. Would this product work? Thanks!
Ashley J on Jan 30, 2017
BEST ANSWER: This would work, but I would put this on the Oak before anything else. Then you can finish it anyway you want.
Can I use CrystaLac between Cetol 1 and Cetol 23 applications on exterior mahogany door?
Michael S on Jun 18, 2016
BEST ANSWER: Providing the Wood is very dry , in between coats, I believe that it is ok to use it as a filler before using a good quality product for the final coats. Good luck.
Is this heat resistant? I'm trying to line the inside of a wooden container for homemade soy candles... when the wax in thin enough during burning it soaks into the wood and seeps through all over the table. Want to make sure it won't melt off and go into the wax.
Paige B on Oct 26, 2015
BEST ANSWER: This is strictly a grain filler, not the final coat. It requires lacquer, polyurethane or a final top coat which should water proof or wax proof your box.
I have already started a french polish on a large walnut slab. Now I'm not thrilled with the grain that wasn't filled by pumice. Can I apply this filler at this point and then sand and resume with the polish?
Anthony W on Oct 4, 2019