- Repairs wood rot or wood decay on interior or exterior wood
- Stop wood rot, binds wood fiber to repair and fill wood damage
- Easy to apply, dries in 2 hours - sand, stain or paint after use
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Product Details
Specifications
Questions & Answers
64Questions
Q:Will this waterproof plywood?
by|Aug 25, 2023
1 Answer
Q:REPEATING a Question from 2020 that still does NOT have a FULL answer - "What is the material, other than acetone, in the hardener?"
The ONLY ingredient on the MSDS sheet IS acetone. Please provide the OTHER ingredients in this hardener. Thanks :)
by|Aug 24, 2023
1 Answer
Q:I have wood rot on panels on a shed that I don't want to replace the panels on. Would I use this then Kilz then paint to stop the dry rot?
by|Aug 18, 2023
1 Answer
Q:Do I use it before or after I spray for termites?
by|Jul 20, 2023
1 Answer
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Aug 25, 2023
Did what I expected
After pulling off the old deck boards the nail hole areas in the joist were a bit soft.
I didn't want any new screws or nails to follow the same areas.
I treated th holes with this stuff (Varathane) with a cheep brush & used an exterior wood filler.
Perfect! Fasteners had solid areas.
by
Apr 1, 2021
It hardens wood
It hardens wood
by
Jul 3, 2020
Very thin. Dissolves adjacent paint job.
I painted the bottom of my chimney chase. It soaked into the wood good, but it softened and dissolved the other good paint on the board. So I had to scrape it (the good paint) off and repaint it. It's clear and thin, and looks just like pure acetone, but it does have some hardener in it. When it dries, it's like varnish or something. It's so thin, it drips from the brush and painting overhead is virtually impossible. I had to sacrifice a spray bottle with this stuff. And it ruined that bottle of course. I painted the bottom of my garage doors, and again it ruined the adjacent paint job. Maybe if you are extremely careful you can get just the bad wood. Lastly, it quickly and completely dissolved the whole bottom of the red solo cup i was using for touchup, and spilled contents on my driveway. It was clear and didn't think much about it, but it dried a pale white, so now i have a 1' diameter white spot on my concrete driveway. You have to dig out all the old wood before painting. I think this stuff is maybe one step up from just replacing the whole wood section. It has drawbacks, and is hard to apply. I would probably do myself a favor and dispose of the remaining can. It was $13 at Home Depot. You have to pour it into another container to use it, as the spout is only 1" diameter.
by
Response from Rust-OleumSupportJul 7, 2020
Thank you for your feedback, Vince! Rust-Oleum Varathane Wood Hardener needs to be applied with a disposable bristle brush and we do not recommend it for use on previously painted sound wood surfaces. You also want to ensure that all safety and application instructions are followed on the label for the best results.
- Rust-Oleum Product Support 3
- Rust-Oleum Product Support 3
Jun 23, 2020
caution: this is an acid
I bought this to harden rotting wood on a soffit. It comes in a metal can with a hole the size of a quarter. You have to brush it on. I poured some in to a red solo cup and it immediately dissolved the cup. I was not expecting an acid as a hardener? Poured all over my leg and pool deck, which i now have to scrub with acetone to get the hardener off. This should either be a spray or have a removable top so you can actually get a brush on there. I recommend getting a soup can to pour it into
by
Jul 10, 2019
Better than expected, so far at least. It actually made soft, spongy wood quite solid. I was skep...
Better than expected, so far at least. It actually made soft, spongy wood quite solid. I was skeptical, because the instructions said to remove all the "decayed and soft wood." And if you do that, what's the point? If the wood were not "decayed and soft," I wouldn't need a wood hardener. Still, I thought it was worth a try, since the alternative would have involved replacing a section of flooring.
I removed the parts that were rotten to the point of really disintegrating and hoped that somehow it would work on the remaining semi-rotten wood. It did. The wood soaked it up and, after it dried, I applied a second coat and it got even harder. Then I filled a few large gaps in the wood with Bondo for Wood and, at least so far, it seems to be a very solid surface. If your area is hidden, or if you're willing to paint afterwards, this might work.
by
Mar 2, 2019
I use this to strengthen wood I am repairing on furniture I am refurbishing, and in my woodworkin...
I use this to strengthen wood I am repairing on furniture I am refurbishing, and in my woodworking. This is a chalice I made and the maple wood I used needed to be filled/strengthened as I turned it.
by
Jan 23, 2019
I purchased this product to treat a spalted maple hollow form bowl that I turned on a lathe. Spal...
I purchased this product to treat a spalted maple hollow form bowl that I turned on a lathe. Spalted wood has very interesting color and pattern but since spalting is the beginning of rot, it is much softer than wood not spalted. This product allowed me to sand and finish to a nice shine. It definitely met my expectations.
by
Sep 27, 2023
by
Sep 27, 2023
Product works wee we l. Penetrates better than the more expensive two part epoxy hardeners. Those products have use on extreme cases but Varathane hardener does a very good job on most applications.
by
Sep 21, 2023
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