how to fix polyurethane streaks

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

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