A flawless surface is elusive. But its application is demanding and aggravating. The patchiness is from the finish still being soaked up by the wood. mike_maglio | Posted in Finishing on August 12, 1999 09:09am * Any suggestions for rubbing out a water-based poly? It is resistant to water, alcohol, household chemicals, scratching, chipping, and wear. It looks dry to me, you need more coats if you want uniform shine. The longer you wait the better. Rubbing out a finish is the last step in finishing. *Andy, I'm putting a finish on a desk I recently made. Polyurethane is the modern product most often used as varnish, or clear finish, on … If your paper gums up with little globs of material, toss it and get another sheet. Finishes that are soft, or tough and flexible can be rubbed out, but they don't always take a uniform sheen and … **Note: Use oil-based varnish over shellac. I was considering wet sanding with 600 grit wet-dry sandpaper. I use wet/dry paper and a wood block to do this. I want the tabletop to be smoother and with a more uniform shine/smoothness. The problems with water-based polyurethane are that it doesn't level out as smoothly as an oil-based finish, and it doesn't protect as well against the elements. Water based finishes can be a little tricky to apply. The finish really needs to be applied and left alone. There are several techniques by Jeff Jewitt of Homestead Finishing Products: DRY BUFF WITH MIRKA ROYAL MICRO PAPER. How Long Do You Let Polyurethane Cure Before Wet Sanding?. Quick Tip! I applied first coat, waited an hour, sanded with 400 grit lightly, then applied three more coats waiting about 45 minutes in between. Clark Kellogg shows you how to make your own metal hardware using many of the tools you already own, plus a handful of others. Enter now for your chance to win more than $2,000 worth of woodworking equipment from Woodpeckers. When the surface feels smooth you are ready to nib. Keep applying more coats. With progressive fine rubbing compounds, you can get a finer finish and a higher gloss. Make Fine Woodworking a part of your holiday. Rubbing out a water based poly finish. This could be anywhere from 3 to 7 days, or even longer, depending on the product. Reply. When you get to the bottom of this article, check out my video on how I used buffing techniques to get rid of scuffs and scratches on my vehicles. Begin with a small area, make 2-3 passes, then evaluate results. Put a few more coats on, concentrating on the areas where it's most dry. ⚛ The information about Rubbing Out Polyurethane Finish 7 Easy Steps To Rub is completely presented here. I read this is not compatible with water-based finishes) Then I finished it with an aerosol spray can of Varathane Diamond Wood Finish Water-Based Polyurethane (Gloss). Most of our tabletops are finished with polyurethane varnish. rubbing out water based poly? ... "Rubbing out" is an abrasive process so poly will fight it. Click for full details. To reveal flaws (bubbles, brush marks, etc.) The satin is achieved by the flattening agents in the finish and when you rub it out you remove the flattening agents which are on the surface. If you detect any gumminess as you rub out between coats let it cure further and then continue. Begin rubbing-out with medium-grade, (00 steel wool equivalent) synthetic abrasive pads (Photo 4). If it's well cured you should have no trouble rubbing out a polyurethane finish. Begin the rubbing-out process by scuffing the surface lightly after the finish is dry. Go to a heavier grit if surface irregularities are not fully removed. *The first thing you have to do is make sure the finish if fully cured, not just dry to the touch. A place where people can come to learn and share their experiences of doing, building and fixing things on their own. Oil-based varnishes and polyurethane should cure at least two weeks. I ended up with a few missed spots on one coat, so sanded again with 320 and recoated. Tackcloths can be used on oil-based poly but not on water-based. Rubbing Out. Using coarse steel wool helps as larger fibers will be easier to detect. This could be anywhere from 3 to 7 days, or even longer, depending on the product. Water-based finishes can be a bit difficult to rub to a high gloss, especially finishes that contain a high percentage of urethane resins. Using 320-grit self-lubri-cating paper or 400-grit wet-dry paper, sand just enough to remove any dust "nibs." Has anybody out there tried this or any other methods? Soaking the brush also softens the bristles to make your application even better. I have built a pine tabletop: http://imgur.com/a/7mtgM. I was considering wet sanding with 600 grit wet-dry sandpaper. Am I on the right track? Let it cure longer. There are three strong reasons for doing so. After finishing the 2000 grit pass, rinse off and let dry. Personally, I now prefer water-based poly such as General Finishes Enduro-Var applied with the Gramercy water-base brush. If the finish is gummy and loads up the paper in the initial leveling, it’s not dry enough. Any suggestions? This coat looks pretty good, but I wanted to rub it out so that I get that nice smooth surface and even sheet (satin finish). Finish with 1500-grit paper. © 2021 The Taunton Press, Inc. All rights reserved. Pine is a very soft, porous wood, so it soaks up a lot of finish. * Any suggestions for rubbing out a water-based poly? ML Campbell also sells water-based products that the pros use, but to my knowledge they only sell in large quantities. Keep applying more coats with light sanding between coats and it will smooth out. On the downside, water-based poly tends to raise the grain of the wood, is susceptible to watermarks, and can be … The contact detail associated with Rubbing Out Polyurethane Finish is also mentioned to make it easy for a user to contact the furniture seller. 2--Continue sanding with progressivly finer grits. You don't need to wait until the poly is cured, just dried. To the touch give you a deep dive into a range of topics that matter super high gloss, finishes! Gloss? with sanding film and soapy water on a big slab i finished with Arm-R-Seal rubbing with online... Varnish over shellac, Inc. All rights reserved when it appear dull, with no shiny spots to do.! Not on water-based learn and share their experiences of doing, building fixing. Pieces of woodwork and is not as smooth as i would like buff the... ⚛ the information about rubbing out '' is an abrasive process so poly will fight it air. 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