We've created and compiled the best of market product reviews and new product releases to keep you
at the top of your craft. Submit and share your own comments and experiences and
review others' feedback to make the most informed purchases for your shop.

View RSS Feed
Product Reviews
Printer Friendly Version Email this Information

Minwax Water Based Wipe-On Poly
By:

Bruce Kieffer
Photos: Bruce Kieffer

Posted: Nov.18.09

I was excited to try this stuff when I first saw it on the internet. My reasons? Well... since moving my shop to our home, I can no longer use "stinky" finishes, plus I really like the smoothness of wipe-on finishes, and I especially like the look of clear water-based finishes on unstained wood. So this product seemed perfect for me. I searched for it at my local home and hardware stores, and I was surprised to find that no one carried it. I checked with Minwax and they told me it was only sold retail in California. That's because of the state's VOC emission limit requirements. But not to worry, they quickly added that it could be mail ordered. So that's what I did, and my testing began!

Following the application directions, I tested on both small and large pieces of wood, and I made some 90-degree corner samples to test them since my experience tells me I need to know how to apply a new finish to an inside corner. When I was done, I concluded the finish's pros were: Very little odor, no concerns of spontaneous combustion, fast drying, recoat in 2 to 3 hours, water cleanup, and the resulting finish has a very delicate satin smooth appearance with great water resistance and durability.

OK, now for the downsides: It dries very fast (yes, this is good and bad), so you must get a coat on quickly, thin and even. That can be challenging as your surfaces get larger and/or more complex. It raises the wood grain, which is common with water-based finishes, but that is manageable and lessens as you add successive coats of finish. And finally, achieving success requires A LOT of practice. In other words, there's a large learning curve, so practice on scrap wood, and start by applying it to smaller flat surfaced projects. Always disassemble your project as much as possible before applying any finish, and a good rule to follow is to never commit an unfamiliar finish to your project. That is a recipe for disaster. With all of that said, the results are well worth the effort. This stuff looks great when applied right, and a finish can be built and completed much faster than with oil-based finishes, which typically have a longer dry time between coats.


Application Tips for This Product

Tools you'll need

Application: Work light, foam brush, 12" x 12" lint free rag, finishing gloves, squirt bottle, small plastic container.

Between Coats:An orbital sander with a 220 grit disc, and 220 and 320 grit sandpaper for raised grain, a chisel and 180 grit hard sanding block for runs, a fine grit sanding sponge and maroon Scotch-Brite pad for smoothing.


Final Touch Ups:
Gray and white Scotch-Brite pads and automobile polishing compound.


After extensive testing and practice, it was time for me to make the leap and finish two medicine cabinets I had just built. Doing so gave me a chance to learn even more. Here are the finishing steps and techniques I found worked best for me: I applied the first coat using a foam brush. That allowed me to go quickly and apply a relatively even thin coat. I was very careful on the inside corners to make sure no finish pooled there, and so minimal finish was applied to the tangent surface. Much care needs to be taken when applying the finish on and near edges. THIN is the key. In fact you can build thin coats on top of thin coats as soon as the first coat is dry. I found that method much more successful than trying to smooth out a thick coat. I would at times apply the finish to "sensitive" areas, stop, go work on another piece, then come back and finish the broader surface between the already finished areas. If the overlays are very thin, they hardly show. Also, excessive wiping causes more problems than dealing with a dried run, but you can wipe off a wet run once the surrounding finish has flashed over (first stage of dry). Keep that in mind.


After a few hours the first coat was dry, very rough, and ready to smooth. I gave it a quick once over with an orbital sander and a 220-grit disc. I removed any runs with a chisel and 180-grit hard sanding block. I continued sanding by hand with 220-grit sandpaper. Next I smoothed the finish with a fine grit sanding sponge, and then a maroon (fine grit) Scotch-Brite pad. Then I applied the second coat, again using the foam brush.


The dried second coat was much smoother than the first. I sanded it more gently by hand using 320 sandpaper, and then the maroon Scotch-Brite pad. I made sure all imperfections were removed since I was preparing to apply the final coat. I applied the third coat using a 12" x 12" lint free rag. I saturated the rag with finish and wrung out the excess. I washed my gloves because I learned earlier that dried finish on my gloves would flake off and land in the wet finish. Not good! I kept the rag loaded evenly with finish by squirting more finish on it often. I third coated the inside corners first, let them dry, and then I applied the third coat very carefully to the rest using long with-the-grain strokes.

Even with all the care I took applying the finish, there still was a bit of unevenness on my rather complex door frames (see the photo). I smoothed problem areas gently with a gray (ultra fine) Scotch-Brite pad, then brought the sheen up with polishing compound, and then back down again with a white (light duty) Scotch-Brite pad.


Product information:

Minwax Water Based Wipe-On Poly

800-523-9299

Ordering Information:

Minwax Water Based Wipe-On Poly

Mail order from Ace Hotline

800-441-4223

Scotch-Brite Pads and Sanding Sponges

Woodworker's Hardware

800-383-0130


Printer Friendly Version Email this Information

 
thomj Posted November 25, 2009 // 1:18 PM Reply
thank you for the information and your hard work. Thomas
EricB Posted November 26, 2009 // 9:27 AM Reply
Bruce, First off, thanks for the information. I have used the General Finishes water-based polyurethene with great success, on Roasted Oak, Roasted Ashe and Roasted Birch (picture frames and a small end table). The main reason I used it was to keep the wood from getting too dark which was an issue with the oil based products. On the table I used the General Finishes Cross-Link product with the water-based polyurethene to make the finish "harder" to keep scratches, nicks, etc. down to a minimum during use. To keep the sanding down from the wood grain raising, what I do is sand the board to 220g, then wet the board (a little more than wiping with a damp rag, but not soaked), let the board dry naturally (usually about 30 minutes), then resand with 220g. By doing it this way, the grain will get raised, and you can sand it back to 220g before applying the finish, so the first coat of finish does not raise the grain, or if it does, it only raised it a small amount. I don't remember having the issues you ran into with the MinWax product, (but that may be beginners luck on my part since these were the first items I made and finished). Now I have a couple of questions for you: 1. Have you used the General Finishes water-based products, and if so how do they compare to the MinWax products? 2. From what I have seen the water-based poly products do not make the grain of the wood "pop" like either an off the shelf oil based poly or a homemade oil poly mixture due to the way it soaks into the wood). How does the MinWax product do in this situation (does it make the grain "pop" like an oil based poly? Thanks, Eric
EricB Posted November 26, 2009 // 9:28 AM Reply
Sorry about the format in the previous post, but for some reason, when I hit the submit button, all the formatting (carraige returns) was removed from the post.
Bruce Kieffer Posted December 01, 2009 // 11:03 AM Reply
Eric, As I think you can tell, using water based finishes is a learning process for me. I have not tired the General Finishes (GF) water based (WB) products. I just spoke with the folks from General Finishes, and I asked about the "Cross Link" product you refer to. They tell me that's an industrial additive not sold retail, but an individual can buy it, and the GF industrial WB poly wholesale, and GF can give distributor names to individuals who call GF. I was intrigued with their other additives, both the extender and accelerator. Very interesting, I must try some soon. Anyway, grain raising is less of an issue with recent WB finishes, but it's still a concern that must be dealt with. Also, different wood species react differently to WB finishes as far as the severity of grain raising. You need to make test samples. I suspect that in 10 to 20 years WB finishes will advance to the point where this problem is eliminated. As for your question does the MinWax wipe-on WB ploy make the wood's grain "pop," well I have to say no, but that look is what I like about the finish. You may want to try GF's natural WB pre-stain conditioner and see if that makes the grain pop like you want.
EricB Posted December 02, 2009 // 9:36 AM Reply
Bruce, Thanks for the response. I have found that all of the General Finishes products are available at my local Woodcraft. I can highly recommend the General Finishes products, not only do they work great (putting them on and the finished result), but their email support is great at answering questions regarding their products and which product to use and how to use it. I have never gone more than 1 day in waiting on a response from them. It has been my experience that WB finishes in general don't make the grain "pop" as much as a oil-based finishes, but like you said, in some cases that is a good thing..
Barefoot Thomas Posted December 03, 2009 // 5:37 PM Reply
That is great info and since I am heading to California for the holidays I think I will pick some up while I am there.
louhodson Posted December 09, 2009 // 9:49 AM Reply
I have used WB poly on a red oak coffee table because I wanted the light color of the sanded oak to show thru. My question is can you use WB poly over an oil based poly first coat. That would get the color of oil but the recoat and fume reduction of a WB finish.
Bruce Kieffer Posted January 17, 2010 // 8:54 AM Reply
loudodson, Good questions. Maybe best answered with a call to MinWax. My experience is that water based on top of oil, and vice-versa just don't play well together. I suggest you take a look at Minwax® Water-Based Pre-Stain Wood Conditioner and General Finishes's natural WB pre-stain conditioner. They may add the color you are looking for to the wood.


Leave a Comment
From:
Email:
Password:
Remember?:
Don't have an account? Sign up now!
Would you like to leave a comment on this news item?