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Can you wipe on a water-based finish?
comments (15) December 1st, 2010 in blogs
Pro-finisher and Fine Woodworking author Teri Masaschi alerted me to the fact that Minwax is now selling a water-based version of their wipe-on poly. It is only available in a few states including California and Florida so I had to call Minwax and have them send me a quart. The first thing I noticed is that the application instructions are identical to those for the solvent-based Wipe-on Poly, word for word, including a recommendation to shake the container thoroughly before use. Something I'd never seen for a water-based finish where foaming is normally something to be minimized. I tested both types of poly on opposite ends of white oak and cherry boards. The first thing I noticed was that Minwax have tinted the water-based poly to warm up the wood. This avoids the gray appearance water-based finishes often give to cherry in particular, but on the other hand, this tint would be a drawback if you are trying to keep woods such as maple and birch as pale and natural looking as possible.
Following the rules, I applied three coats of each finish, sanding between coats with P220-grit sandpaper. Neither finish produced any build, but it was impossible to get an even sheen with the water-based one. The liquid just didn't seem to like being applied with a cloth. Out of curiousity, I then brushed on a couple of coats of the water-based poly and found that not only did it build nicely but it leveled well and gave both woods an acceptable color.
Has anybody had good results wiping on a water-based finish? It would be nice not to have the solvent smell while finishing or to have to worry about the rags burning the shop down, but I've yet to discover this holy grail of finishing.
posted in: blogs, polyurethane, water-based finish


















Comments (15)
Posted: 12:37 pm on May 22nd
Since then I have used the water based poly with good to very good results. For me, it has an extremely short open time, 30 seconds at best. Far to short to smooth the finish. My last pass is a flat rag wipe. I am going to try a foam "brush" next. Is it possible to use a latex extender like Floetrol?
Posted: 7:24 pm on December 21st
Posted: 10:40 am on December 19th
none of them gave the finish of a sprayed or brushed water based product.
Posted: 5:57 pm on December 14th
Note, I use a "lambs wool" applicator just as though I were finishing a floor but scaled to my piece. I apply an even thin coat - and leave it. No further wiping as it sets up quickly. Then re-apply after a light sand in an our or so.
I am traditionally in favour of wipe-on oil and oil/varnish blends - but when the situation calls for it this one is definitely worth a try.
Posted: 11:57 am on December 14th
Posted: 10:06 am on December 11th
Posted: 12:54 pm on December 9th
Posted: 9:30 am on December 9th
IMHO - all water-based 'finishes' for fine furniture can never equal the results of equivalent solvent-based - and I never, ever, would ruin anything I make by using them. The reason is simple: 'oil and water don't mix'.
To get them to mix, rather to get the resin to emulsify in the water carrier, manufacturer add 'surfactants' - soaps. Even if the finish cross-links when drying, these surfactants are still there. Waiting to 'do their job' - and dissolve the finish the minute water hits it.
Also, check the composition - sometimes the MSDS will tell you something - like the resin is acrylic - rather than a real urethane, phenolic, or alkyd true varnish. That is - it is soft and gummy.
Water-based latex house paint makes sense. Water-based furniture finishes do not. Their continued promotion does a disservice to all involved in making fine furniture.
Posted: 1:49 am on December 9th
Cheers, Dean
Posted: 8:12 pm on December 8th
For water borne finishes it is hard to beat the Varathane Satin Diamond Elite. My experience has only been with a foam brush and HVLP spray applications. During the dry times of the year workpieces can be sprayed with several coats per day, they can be tinted for shading and are far more durable than shellac and lacquers. However, I have recently fallen in love with the simplicity of the wipe on solvent based Minwax Poly ,nothing seems to bring out the iridescence of figured maple like it does.
I think it is good to sand with 220P or 320P only after the first coat, then switch to Very Fine Scotchbrite pads for intercoat scuffing to remove roughness and insure good intercoat adhesion without removing most of what you just put on. The use of a paste wax on top of just 3 coats of the wipe on poly results in a great finish!
Posted: 11:30 pm on December 7th
I was not satisfied with my color and took a shot at tinting the wipe-on poly with the Transtint, and it took it perfectly.
This stuff is also super fast dry in a heated, dry room. Love this stuff!
Posted: 10:45 pm on December 7th
Posted: 4:11 pm on December 7th
Posted: 12:54 am on December 2nd
Posted: 4:27 pm on December 1st
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