Make note that commercial wipe-on poly is nothing more than thinned polyurethane. Wipe On Poly Leaving Streaks- How Can I Fix It? – Gloria May 27 '13 at 16:08 Prior to coating them again, I'd suggest wiping the floors down with a dust mop that has been dampened with mineral spirits. Depending on the level of gloss you want, go to an auto supply store and get a bunch of different grits from 300 and up. After you buff, the surface should feel buttery smooth. It doesn't look glossy, so the scratches aren't too much of a disaster, but I'd still like to fix … I would chemically strip the finish off, and use a wipe on version of an oil base varnish, or other top coats, that can be sprayed such as waterbased polyurethane. This will make sure that the area doesn't get too much finish. Keep a wet edge. Inspect the dried area for brush marks. Hardwood floors in a home create charm, style and resale value with very little maintenance. Well<, I had to do something because my poly finishes sucked. One of you can apply the stain, and the other wipe off the excess to get an even color. (I normally use too little.) Hope this helps. Typically, two to three coats are used with sanding in between coats to even them out. Luckily this is an easy problem to fix. I started with a standard type that I brushed on with a foam brush. Then after that apply 2-3 coats between sanding sessions. If some remain, re-sand the furniture. Thanks, and I'll get to work on it tomorrow. For a better experience, please enable JavaScript in your browser before proceeding. While preventing the white spots is easier than fixing them, you can fix them by sanding down the high spots and then drawing out the moisture. JavaScript is disabled. How to Fix It: An abrade and recoat is almost always necessary to repair … Is it a water based poly or solvent based? The table, according to the manufacturer, has a polyurethane finish (on top of a walnut veneer). If you are staining an object large enough that you won’t have time to get the excess wiped off without leaving streaks, seek a second person to help. Typically, two to three coats are used with sanding in between coats to even them out. The streaks are still there. Whether it be water based, oil based, oil modified water based, etc. What I think happened is that I either didn't get all the sanding dust of before the second coat, or I screwed up one of the early coats when applying the poly. Come join the discussion about shop safety, wood, carpentry, lumber, finishing, tools, machinery, woodworking related topics, styles, scales, reviews, accessories, classifieds, and more! Then after that apply 2-3 coats between sanding sessions. I used 2 coats. Wait for the polyurethane to dry completely and cure as hard as possible. As far as solving your problem goes, if the finish has stopped bleeding oil and feels like it has dried hard, you might be able to even out the gloss by wiping the cabinets down with a rag dampened with mineral spirits (assuming it was oil-based polyurethane) followed by a dry cloth. Sand down the brush marks lightly with the fine-grit sandpaper. Avoid Hard Spots on Your Applicator: Streaks can easily be caused by hard spots/stiff bristles on your applicator. Practice on scrap wood to … Make sure to apply even pressure to the area. There is no quick fix for this, what I recommend is that you have the refinishers come back and screen and coat the floor. Might try light sanding and a thinned out fiinish coat again. Some tree species contain pockets of sap, which cause the wood to absorb stain unevenly. Let it sit a few minutes and watch for dry spots forming where it soaks in. Each line was about 1 1/2 feet long and was visible from one wall to the other across the middle of the room. Brush Marks on Polyurethane Topcoat. Uneven polyurethane coverage can be fixed with sanding. Apply the polyurethane finish lightly to the brush, making sure to wipe off any extra. And all polyurethane will yellow. After the first coat, I used 220 grit sandpaper to lightly sand the surface as recommended. White spots on polyurethane can be caused by a number of things, but they are preventable, and small spots like this are easy to fix. The two major types of polyurethane are oil-based and water-based, each of which has different advantages. Last tip; I don't know if you were planning on staining the underside or not (I can't tell if the top is off the table in the pics, sorry). always looks smudgy with any touch even after drying for a week. Ive read a variety of methods to correct.... Wax with steel wool, fine grit sand then apply new finish. Check your applicator carefully, and remember what I said before about always using a new applicator for your final coat. However, there is a way to remedy these flaws without undoing a day's work. A Loyola University New Orleans graduate with a bachelor's degree in communications, Leigh has worked as a copy editor, page designer and reporter for several daily newspapers and specialty publications since 2005. When it comes to finishing furniture or hardwood floors, polyurethane is the key to protecting and preserving the stain. Get an assortment pack and stick with 3m. Theres a trick I have learned for any poly product that works wonders with your finish. However, the quality and protection of most film building finishes (such as polyurethane, lacquer, and shellac) goes up exponentially on the first few coats (e.g., there’s a huge improvement in durability and moisture excluding effectiveness from coat #1 to coat #2, … This will clean the floors really well and it will also help to see if all of the old streaks were buffed out of the floor. As a protective measure I've started down the path of putting some coats of a Satin finish polyurethane on them. Wrap the sponge in a clean … If the coating looks too thick, use the rag to lightly swipe at the area until it is even. I noticed when it dried there were a lot of streaks in the finish even after sanding down with 4'0 steel wool and wiping down with mineral spirits. So what I used is Minwax indoor/outdoor Helmsman spar urethane, in clear satin. For water-based stains, use a lacquer thinner. That should be the equivalent of 1 coat of standard poly. Wiped it down with soft cloth dampened with varsol & did another coat of poly. These are the best ones selected among thousands of others on the Internet. By creating an account you agree to the Hunker. Goof 3: It's splotchy. If there are ridges you probably want to sand everything flush. Rather than lecture you on how to prevent the problem first, I’m sure you’re here because you already have the problem. To fix this you'll need to buff the floors really well and then recoat them. Hope it's something easier. It might rewet the prior coat and release the moisture -- Doubt it. When you sand through it you will end up with what looks like a contour map. Polyurethane typically leaves brush marks from a paintbrush whenever it is first applied, but if it is the right consistency and if the proper procedures are applied, the ridges resolve themselves and the polyurethane settles to a smooth finish. Sand the Surface. How to Fix an Uneven Stain on Refinished Wood Floors. If it is not sanding dust it could be blushing if it was humid when you applied the finish. Start by washing the area with soapy water. You commonly see these on floors or tabletops with heavy use. Apply 3-4 coats before your first sanding, that should seal in your stain. Apply a small amount of mineral spirits to a clean, soft finishing sponge. ... Make note that commercial wipe-on poly is nothing more than thinned polyurethane. Polyurethane typically leaves brush marks from a paintbrush whenever it is first applied, but if it is the right consistency and if the proper procedures are applied, the ridges resolve themselves and the polyurethane settles to a smooth finish. Brush. Wish me luck. How to Apply Polycrylic without Streaks, Brush Strokes or Bubbles How to Avoid Brush Strokes and Streaks. Note: Paper with a … These particles can get caught under the finish and ruin it. It doesn't look glossy, so the scratches aren't too much of a disaster, but I'd still like to fix them if … Wax a steel wool might work but what I have done is thin the material with appropriate flow control agent and apply a light final coat. This means only touch wet paint that you’ve just painted. A forum community dedicated to professional woodworkers and enthusiasts. Brush the sanded area off with a soft cloth to remove all traces of dirt and grit from the sanding. It may take several light coats to create the desired effect, but that's better than applying too much. Katie Leigh is a freelance writer and editor based in Chicago. It is immaculate but hard to keep clean looking. Streaks in polycrylic finish Ive used polycrylic many times but this time the finish is very streaky. There also were shiny and dull streaks spread randomly throughout the floor. How to Fix It: Add more wax and buff it better to remove more wax. Applying polyurethane in even coats is a crucial, though not always simple task. The can doesn't say whether it's water- or solvent based, but I'm guessing solvent because of all the nasty warnings about ventilation and VOCs, and the marketing language talks about its "special oils allow the finish to expand and contract....". Sand your wood with at least 220-grit sandpaper. Put the furniture in a well-ventilated work area. When it comes to finishing furniture or hardwood floors, polyurethane is the key to protecting and preserving the stain. The problem with wipe on poly is that is goes on very thin and requires way more coats than a brush on. Please help! Strip as much of the staining as possible. http://www.woodworkingtalk.com/gallery/showgallery.php?cat=500&ppuser=1269, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Shiny spots in polyurethane floors can be caused by the finish not flowing out properly and pooling in areas, or inconsistent screening between coats of finish. These particles can get caught under the finish and ruin it.Apply the polyurethane finish lightly to the brush, making sure to wipe off any extra. It picks up what you’ve already painted and drags it a bit. Is it a water based poly or solvent based? You just need the slightest … Sand your project with progressively finer grits of sandpaper. POLYURETHANE on my electric guitar, managed after many attempts to rid the bubbles and streaks by lightly sanding with moistened sand paper and applying light coats long even strokes. It may take several … Additionally, once the protective finish has been broken by a scratch, the wood underneath can be irreparably damaged by moisture or deepening of the scratch in the wood. Apply more varnish on ... Usually 6-12 hours later, start the process of applying the next five coats. All right then, chemmy! Buy the epoxy and do it right. Since this is a water-based product, apply the conditioner to both sides to avoid having to start a thread titled "911: how to fix a … When it’s clean, mark out the section with masking tape. Water-based polyurethane is clear, low-odor and has a quick drying time.It is recommended for surfaces that see little exposure to heat or the elements, such as desks, bookcases and end tables. Finally, wipe the excess amount away with a rag right away. I have a feeling the streaks are from the steel wool. If the stain you have used is oil-based, scrub the section while it’s still wet to remove the streaks, then reapply the pain. This will make sure that the area doesn't get too much finish.Apply the finish gently to the sanded area, with as few brush strokes as possible. I … Brush on polyurethane with a paintbrush in the direction of the wood grain. In any event, the white streaks are not on the surface, so I can't just sand them off. Apply 3-4 coats before your first sanding, that should seal in your stain. Polyurethane isn't going to hold up well. It came out pretty nice, except that there are white streaks. Cheap sanding paper is more expensive, since they don't last anywhere as long as the premium ones. The section is splotchy Thanks again HerrBag! In your case you should be putting on 4 or 5 coats before doing anything more than a light scuff sanding with very fine paper or steel wool. Question. Cause: You may have used too much wax. Sanded the second time once dried for several days, wiped with varsol cloth again & recoated. Scrub out the streaks, then reapply the stain liberally. The table, according to the manufacturer, has a polyurethane finish (on top of a walnut veneer). A light coating of finish after sanding disguises the area. Touching paint that has sat for even a few minutes can cause streaks. I just finished a cherry table top using poly for the first time. Sanding removes the lines and ridges created by the brush marks without ruining the finish on the whole piece. Turned out great, no streaks. With poly not much you can do that I know of. He thought they might be stop marks. White spots on polyurethane are generally caused by two things: Not stirring thoroughly enough before applying it, or a buildup of moisture. Allow the polyurethane finish to dry. You could use lacquer or conversion varnish if you are into solvent based finishes. Clean the wood very thoroughly to remove sanding dust before each new coat of polyurethane, using a vacuum (if available) and a tack cloth. Are the streaks going to be stuck there / should I just paint it black instead? When the brush marks don't resolve themselves, try a few corrective techniques. Brush marks often show up on pieces of furniture treated with polyurethane finish, usually despite the best efforts of the craftsman. Wipe off the excess with a rag immediately. That should be the equivalent of 1 coat of standard poly. For open-grain woods (like oak, ash, or walnut), you can apply a wood grain filler before the polyurethane, to create an ultra-smooth finished surface. How to Fix It: Wipe it with a bit of mineral spirits and buff well. I applied 3 coats, sanding between coats. ! Wipe on a very heavy first coat on the bare wood. Hunker may earn compensation through affiliate links in this story. However, the quality and protection of most film building finishes (such as polyurethane, lacquer, and shellac) goes up exponentially on the first few coats (e.g., there’s a huge improvement in durability and moisture excluding effectiveness from coat #1 to coat #2, … Then, sand the area with a fine-grit scratch pad to get rid of the old coat. Applying polyurethane in even coats is a crucial, though not always simple task. Any wood surface with a polyurethane wood finish can develop scratches with normal wear and tear. Thanks eagleeye and cabinetman. 20 comments on “ My Five Worst Mistakes ” bob 02/06/2014 at 4:13 pm. Apply the finish gently to the sanded area, with as few brush strokes as possible. He explained the problem as dull lines running cross-grain in the finish. When the brush marks don't resolve themselves, try a few corrective techniques. Sanded with 320 & then 400 grit sandpaper on a block. To fix damaged clear coat, you'll need to clean the area, sand the old coat away, and spray on the new coat and polish. Apply the finish gently to the sanded area, with as few brush strokes as possible. The most detailed guides for How To Fix Polyurethane Streaks are provided in this page. Additional background (probably unnecessary): I have a true black stained piece of plywood that I had spray-coated with polyurethane as the first layer (technically it's three, once-over sprays with a … Last summer I was asked to troubleshoot a job for a relatively new contractor. I would really hate to strip to bare wood… is there a way of either covering the streaks, making them disappear or removing just the arm-r-seal without removing the gel stain? I used minwax quick drying polyurethane to topcoat a dining room table. Them out better than applying too much pockets of sap, which cause the wood to … 20 comments “... 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