Scrub out the streaks, then reapply the stain liberally. Then, sand the area with a fine-grit scratch pad to get rid of the old coat. When it’s clean, mark out the section with masking tape. 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. Note: Paper with a … 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. always looks smudgy with any touch even after drying for a week. 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. He thought they might be stop marks. Practice on scrap wood to … This means only touch wet paint that you’ve just painted. Whether it be water based, oil based, oil modified water based, etc. The table, according to the manufacturer, has a polyurethane finish (on top of a walnut veneer). Uneven polyurethane coverage can be fixed with sanding. Apply 3-4 coats before your first sanding, that should seal in your stain. Wrap the sponge in a clean … Let it sit a few minutes and watch for dry spots forming where it soaks in. The streaks are still there. 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, … All right then, chemmy! Theres a trick I have learned for any poly product that works wonders with your finish. Apply the polyurethane finish lightly to the brush, making sure to wipe off any extra. It is immaculate but hard to keep clean looking. This will make sure that the area doesn't get too much finish. Well<, I had to do something because my poly finishes sucked. Are the streaks going to be stuck there / should I just paint it black instead? 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. Polyurethane isn't going to hold up well. 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. 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. White spots on polyurethane are generally caused by two things: Not stirring thoroughly enough before applying it, or a buildup of moisture. Sanded with 320 & then 400 grit sandpaper on a block. 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. It might rewet the prior coat and release the moisture -- Doubt it. It picks up what you’ve already painted and drags it a bit. 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. I have a feeling the streaks are from the steel wool. You commonly see these on floors or tabletops with heavy use. One of you can apply the stain, and the other wipe off the excess to get an even color. Please help! Wiped it down with soft cloth dampened with varsol & did another coat of poly. How to Fix It: An abrade and recoat is almost always necessary to repair … Brush marks often show up on pieces of furniture treated with polyurethane finish, usually despite the best efforts of the craftsman. Luckily this is an easy problem to fix. How to Fix an Uneven Stain on Refinished Wood Floors. http://www.woodworkingtalk.com/gallery/showgallery.php?cat=500&ppuser=1269, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. – Gloria May 27 '13 at 16:08 Streaks in polycrylic finish Ive used polycrylic many times but this time the finish is very streaky. Sand down the brush marks lightly with the fine-grit sandpaper. Hope it's something easier. How to Fix It: Wipe it with a bit of mineral spirits and buff well. Come join the discussion about shop safety, wood, carpentry, lumber, finishing, tools, machinery, woodworking related topics, styles, scales, reviews, accessories, classifieds, and more! Get an assortment pack and stick with 3m. 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 came out pretty nice, except that there are white streaks. Katie Leigh is a freelance writer and editor based in Chicago. 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. A light coating of finish after sanding disguises the area. Each line was about 1 1/2 feet long and was visible from one wall to the other across the middle of the room. 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. I used 2 coats. Apply 3-4 coats before your first sanding, that should seal in your stain. After you buff, the surface should feel buttery smooth. So what I used is Minwax indoor/outdoor Helmsman spar urethane, in clear satin. Thanks again HerrBag! 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. Question. 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. Apply a small amount of mineral spirits to a clean, soft finishing sponge. 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. Hope this helps. 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, … Clean the wood very thoroughly to remove sanding dust before each new coat of polyurethane, using a vacuum (if available) and a tack cloth. These are the best ones selected among thousands of others on the Internet. Any wood surface with a polyurethane wood finish can develop scratches with normal wear and tear. You could use lacquer or conversion varnish if you are into solvent based finishes. 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. Rather than lecture you on how to prevent the problem first, I’m sure you’re here because you already have the problem. The two major types of polyurethane are oil-based and water-based, each of which has different advantages. Applying polyurethane in even coats is a crucial, though not always simple task. If it is not sanding dust it could be blushing if it was humid when you applied the finish. Turned out great, no streaks. For water-based stains, use a lacquer thinner. How to Apply Polycrylic without Streaks, Brush Strokes or Bubbles How to Avoid Brush Strokes and Streaks. Apply the finish gently to the sanded area, with as few brush strokes as possible. Allow the polyurethane finish to dry. When the brush marks don't resolve themselves, try a few corrective techniques. Wipe on a very heavy first coat on the bare wood. Wait for the polyurethane to dry completely and cure as hard as possible. Touching paint that has sat for even a few minutes can cause streaks. 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 … When it comes to finishing furniture or hardwood floors, polyurethane is the key to protecting and preserving the stain. I used minwax quick drying polyurethane to topcoat a dining room table. Then after that apply 2-3 coats between sanding sessions. In any event, the white streaks are not on the surface, so I can't just sand them off. JavaScript is disabled. It doesn't look glossy, so the scratches aren't too much of a disaster, but I'd still like to fix them if … The problem with wipe on poly is that is goes on very thin and requires way more coats than a brush on. 20 comments on “ My Five Worst Mistakes ” bob 02/06/2014 at 4:13 pm. It may take several … Cause: You may have used too much wax. Inspect the dried area for brush marks. Finally, wipe the excess amount away with a rag right away. Sand the Surface. Avoid Hard Spots on Your Applicator: Streaks can easily be caused by hard spots/stiff bristles on your applicator. These particles can get caught under the finish and ruin it. Strip as much of the staining as possible. As a protective measure I've started down the path of putting some coats of a Satin finish polyurethane on them. 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....". Some tree species contain pockets of sap, which cause the wood to absorb stain unevenly. Sand your project with progressively finer grits of sandpaper. Last summer I was asked to troubleshoot a job for a relatively new contractor. Make note that commercial wipe-on poly is nothing more than thinned polyurethane. How to Fix It: Add more wax and buff it better to remove more wax. Thanks eagleeye and cabinetman. 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. The table, according to the manufacturer, has a polyurethane finish (on top of a walnut veneer). Prior to coating them again, I'd suggest wiping the floors down with a dust mop that has been dampened with mineral spirits. If there are ridges you probably want to sand everything flush. ! That should be the equivalent of 1 coat of standard poly. For a better experience, please enable JavaScript in your browser before proceeding. Brush. When the brush marks don't resolve themselves, try a few corrective techniques. Wipe off the excess with a rag immediately. 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. He explained the problem as dull lines running cross-grain in the finish. You just need the slightest … Is it a water based poly or solvent based? 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. When it comes to finishing furniture or hardwood floors, polyurethane is the key to protecting and preserving the stain. Wipe On Poly Leaving Streaks- How Can I Fix It? It may take several light coats to create the desired effect, but that's better than applying too much. The section is splotchy 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. There also were shiny and dull streaks spread randomly throughout the floor. However, there is a way to remedy these flaws without undoing a day's work. 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. Wish me luck. Apply more varnish on ... Usually 6-12 hours later, start the process of applying the next five coats. I applied 3 coats, sanding between coats. (I normally use too little.) Typically, two to three coats are used with sanding in between coats to even them out. Applying polyurethane in even coats is a crucial, though not always simple task. Brush the sanded area off with a soft cloth to remove all traces of dirt and grit from the sanding. When you sand through it you will end up with what looks like a contour map. Make sure to apply even pressure to the area. 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. 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. ... Make note that commercial wipe-on poly is nothing more than thinned polyurethane. I just finished a cherry table top using poly for the first time. Goof 3: It's splotchy. And all polyurethane will yellow. Ive read a variety of methods to correct.... Wax with steel wool, fine grit sand then apply new finish. There is no quick fix for this, what I recommend is that you have the refinishers come back and screen and coat the floor. Thanks, and I'll get to work on it tomorrow. To fix this you'll need to buff the floors really well and then recoat them. Sanded the second time once dried for several days, wiped with varsol cloth again & recoated. Start by washing the area with soapy water. With poly not much you can do that I know of. Typically, two to three coats are used with sanding in between coats to even them out. After the first coat, I used 220 grit sandpaper to lightly sand the surface as recommended. 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. Sand your wood with at least 220-grit sandpaper. If some remain, re-sand the furniture. Keep a wet edge. A forum community dedicated to professional woodworkers and enthusiasts. Might try light sanding and a thinned out fiinish coat again. Brush on polyurethane with a paintbrush in the direction of the wood grain. Put the furniture in a well-ventilated work area. Brush Marks on Polyurethane Topcoat. I started with a standard type that I brushed on with a foam brush. Check your applicator carefully, and remember what I said before about always using a new applicator for your final coat. Is it a water based poly or solvent based? 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? If the coating looks too thick, use the rag to lightly swipe at the area until it is even. Sanding removes the lines and ridges created by the brush marks without ruining the finish on the whole piece. Cheap sanding paper is more expensive, since they don't last anywhere as long as the premium ones. I … By creating an account you agree to the Hunker. It doesn't look glossy, so the scratches aren't too much of a disaster, but I'd still like to fix … Hardwood floors in a home create charm, style and resale value with very little maintenance. Buy the epoxy and do it right. Then after that apply 2-3 coats between sanding sessions. That should be the equivalent of 1 coat of standard poly. 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). Hunker may earn compensation through affiliate links in this story. 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. 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 … About always using a new applicator for your final coat with soft cloth to remove all traces dirt., soft finishing sponge going to be stuck there / should I just finished a cherry table using... 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