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Pentacryl Wood Preservative for Green Wood

Prevent green wood from checking while also reducing drying time.
Item #
92% of 100

Protect wood from cracking and splitting while drying. Quick drying, non-toxic. Can reduce drying time up to 90 percent over wax-coating methods. Contains siliconized polymers. Can be applied by brushing on or soaking item if a small piece. Highly recommended for wood carving. Can be finished with most stains once dry! 1 quart container.

(1) Pentacryl Wood Preservative for Green Wood
More Information
Brand Pentacryl
Manufacturer Part Number PENTACRYL QT
Weight 2.0000
Size Quart
4.6 / 5.0
20 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Worked as advertised
I had some small cherry rounds that I did not want to split, I put them in plastic ziplock bags with some of this (so it would soak in good without using too much product). Left them for about two weeks, flipping the bag every day to redistribute the product. and none of the wood split.
July 15, 2019
3 months ago
Brings out the grain and preserved my projects to keep them from drying out and cracking.
Great product only place on town that had it.
Really brought out the grain and preserved the wood to keep it from cracking.
Really brought out the grain and preserved the wood to keep it from cracking.
May 6, 2019
6 months ago
Woodworking Experience:
Wedding mementos
I used this to treat tree cookies that we laser engraved as memory items for a wedding. The customer was delighted and the product did exactly what I needed it to do.
April 24, 2019
6 months ago
So far, so good
Easy brush application on freshly cut wood cookies, the size of dinner plates. Applied product several times after drying on subsequent days. Little, if any fumes. Used a disposable brush. It's been 2 weeks since final application and no cracking or checking.
March 23, 2019
7 months ago
Woodworking Experience:
Worked great, will be getting more soon!
November 18, 2018
11 months ago
Woodworking Experience:
Pentacryl for green wood
So far it has worked very well. I will be using it again.
October 8, 2018
1 year ago
Woodworking Experience:
Pentacryl use on log cookies
The product worked well. I applied it with a brush, and did multiple applications over several days. It was a little difficult to tell if the wood was saturated with the product. Brush clean-up with soap and water between applications worked well.

The cookies are now drying, so the effectiveness (or lack of) will be evident in the next few months.
May 25, 2018
1 year ago
Woodworking Experience:
Works as specified. Happy with the product
May 2, 2018
1 year ago
Woodworking Experience:
Pentacryl Wood Preservative
Works great when the directions are followed. Apply as soon as reasonably possible after cutting the wood, and apply it liberally.
October 11, 2017
over 2 years ago
Woodworking Experience:
Great product!
I used this product to prepare a large slab of pine in preparation to making an outdoor patio table.
The product was easy to apply and I am pleased with the outcome.
April 14, 2017
over 2 years ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 10 questions Browse 10 questions and 42 answers
Why did you choose this?
Rockler Store
it works. need I say more?
R S R on Sep 25, 2019
Using this to create turned nib pens and coasters from green wood. So far it works great.
JOSEPH D on Apr 3, 2019
it works. need I say more?
R S R on Sep 25, 2019
Wanted to try
Buck S on Jun 16, 2019
Using this to create turned nib pens and coasters from green wood. So far it works great.
JOSEPH D on Apr 3, 2019
Using g a large tree slice as an outside coffee table.
Sherry F on Mar 19, 2019
Heard great things about the product.
Michael P on Mar 19, 2019
I have purchased other products from your company and I been very satisfied.<br />Thanks
higgy on Feb 24, 2019
Suppose to be the best on the market. Gonna give it a try.
Mark N on Jan 3, 2019
This product seems to be the top recommended product for preserving green wood.
Brandon M on Apr 30, 2018
It has good reviews, and I have been satisfied with other Rockler products.
David H on Apr 8, 2018
Pinterest showed making Christmas ornaments from wood chips - this product is supposed to prevent the wood from cracking. I hope!
Lawrence C L on Feb 8, 2018
in the hopes of preventing a large greenwood disc from cracking while it dries
Elynne H on Dec 21, 2017
Fred T on Oct 15, 2017
everyone seems to use this for my type of project
LEE S on Sep 19, 2017
I want to make wood "cookies" for use as coasters and needed something of prevent the wood from cracking. Then I will add a topcoat. Hope this works because nothing I have tried so far works.
Steve on Sep 11, 2017
Recommended by a friend who does chainsaw carvings. =)
Susan C on Jul 26, 2017
to treat newly cut logs
Annette P on Jul 24, 2017
I am making a end table out of a slice of a log. I am using this to prevent splitting while it is drying.
Mark N on Apr 8, 2017
try out on a slab of wood I have
Jody P on Apr 3, 2017
Making dice yard game, they keep splitting
Vickie R on Mar 11, 2017
I have been working with cedar and needed something to help stop the cracking of the wood when it dried. I did some research and thought this would be a good product to use. I'll find out if it was a good choice when I receive it.
Rickey H on Jan 9, 2017
to preserve some wood for discs. unable to find it locally
Carol G on Nov 17, 2016
product was recommended for use on green wood to reduce checking
bernard r on May 1, 2016
to preserve green wood disks
Linda l. J on Jan 18, 2016
I work with green wood that often splits when drying. Am hoping this will solve that problem????
Judd K on Jan 8, 2016
To slow down the drying process of wood pieces so they don't crack.
Caroline W on Dec 8, 2015
Recommended by an article on green wood turning
N K on Oct 11, 2015
green wood turning blank
Richard S on Sep 17, 2015
It was recommended by a friend for for use on log ends!
Dan C on Aug 5, 2015
could not find locally
Robert H on May 20, 2015
Wanted to try
Buck S on Jun 16, 2019
Using g a large tree slice as an outside coffee table.
Sherry F on Mar 19, 2019
What is the difference between PEG and Pentacryl? I am trying to make tables from green cut disks of oak, maple and popular.
pat on Aug 2, 2016
BEST ANSWER: Look up polyethylene glycol in Wikipedia (registered TM). There is some information about elements being toxic, but a lot has to do with the percentage by volume. The article also discusses its properties include effective displacement of water and does go into detail about the underwater wooden vessels that have been preserved using PEG.

Besides the chemical make-up, there may not be much difference in the effectiveness of either product. However, before you lay out your cash, you may want to contact the manufacturer(s) directly.

Hope this helped.
Can you use this on cutting boards?
Pam B on Nov 19, 2016
BEST ANSWER: I would not do that, better to use food grade mineral oil on a cutting board
Can I paint over wood that has been treated with pentacryl?
Amy S on Oct 25, 2016

I have used this product but always left it natural. I did some internet searching and cannot find a definite answer to your question.


Does this product change the color of the wood?
Edwin on Jan 25, 2019
BEST ANSWER: From my experience on a few items it does not change the color appreciably. There is a slight muting of the natural wood color.
im new to this stuff i have a fireplace mantel im making the blackwalnut is still semi green if i put a few coats on the wood after it dries could i put a coat of poly or epoxy to make it really shine? or will this make it shine? thank you
michael s on Jul 25, 2019
BEST ANSWER: Pentacryl is a stabilizer used to prevent green wood from cracking or splitting during the drying process. It is not a finish. It will not shine or polish. When it is dry, it can be stained and finished with water based or oil based finishes.
I have a 6'x3' oak slab that I plan to make into a picnic table. It has been curing in my shed since December. How much pentacryl do I need and is it too late to apply it now (June)? There are also a couple of cracks developing--any advice?
Kate M on Jun 9, 2019
BEST ANSWER: I would use approx two quarts. Use one initially, wait a couple of days and reapply again, but less. You are going to apply the product on both sides. I would use cauls to keep things flat at first. Good luck.
We have wooden fence posts that we'd like to preserve from the Sun would this work to help from future sun damage?
Mary J on Mar 5, 2018
BEST ANSWER: No. This is to preserve green wood. There are much less expensive ways to preserve fence posts. Look for a wood sealer
I'm making wood rounds (slices) for my daughter's wedding. I need a product to protect from cracking. The rounds will be 1.5 to 2 inches thick and 12 inches in diameter. How much Petracryl do I need for 16 wood slices?
Brenda R on Sep 5, 2017
BEST ANSWER: I am air drying a large about 36 inch round and it took about 3/4 of a bottle to coat both sides until saturation.
I've already primed and painted the huge fir corbel that continues to crack. Can I brush this product in the cracks then repaint or do I have to strip all the primer/paint off first?
Robb W on Nov 20, 2016