can you apply polyurethane over old polyurethane

water. Want to know what chalk paint and unicorn spit works. Coating over an old finish has the great advantages of avoiding the always-messy stripping process and greatly reducing the amount of work involved. You can put an oil based varnish over the lacquer. Its looking a little dull and I want to "re-poly" it but not re-stain it. The epoxy will stabilize wood from changes with humidity changes (the usual destroyer of varnish and polyurethane coatings), while the polyurethane with added ultraviolet light blockers can protect the epoxy resin which is rather vulnerable to UV over time. At 50% relative humidity and 70°F, Gel Polyurethane will dry to touch in 5 to 6 hours. Make sure that the water-based polyurethane coating is fully cured. to keep dirt, dust, bugs and carpet fibers out of the new finish. 2 steel wool or a dull 120- to 150-grit abrasive screen using a heavy floor buffer. You just need to make sure the oil is dried. Bedroom Table- do I need to wax over chalk paint. stain or wood in some spots while totally missing others. life of the floor is shortened to sixty to eighty five years. Google Adsense Advertisement. I've read in a number of sources that poly will go over shellac and stick, but I wouldn't do it. You may choose to thin oil-based polyurethanes with mineral spirits or naphtha, but for most applications, this is not necessary; check the manufacturer's recommendations on the product label. One other piece of advice: Before applying a fresh coat of finish over an existing one, test their compatibility on a small, hidden spot, such as the inside of a cabinet door. Additional coats of polyurethane will not reduce the dings and It can be done,lightly sand,clean and choose a non-yellowing polycrylic. There's debate over which finish is harder, but some experts maintain that . Can you stain engineered (and veneered) wood? It had little round spots all over it that the polyurethane did not cover. You can also use mineral spirits. Check the label of any product you wish to choose. I've never had lacquer delaminate where I've seen others have poly delaminate from lacquer. If the floor is sanded to the wood A: Yes, a polyurethane-finished hardwood can be recoated if you take the proper steps to prep the finish. Low-gloss polyurethanes are … From books to magazine articles to forums to DVD’s, the message is always the same. hal@cinhome.com. I feel more comfortable recoating a piece with lacquer than polyurethane. It protects the paint from peeling and is easy to clean. The question is can I go over this with a oil based polyurethane clear to finish the whole top, something like Cabots Cabathane Clear. Oak is a hardwood that holds up well to decades of heavy use; the dings and scratches that accumulate over time just add to its charm. Purchases made through these links may earn me a small commission at no additional cost to you. touchup of the finish. subjected to. grain direction. In short; you CAN apply a lacquer or a polyurethane over a Danish oil. If the floor-owner wants more polyurethane on the floor, Although air President, Heritage Hardwood Floors, Inc. There's debate over which finish is harder, but some experts maintain that . Every poly has its preferred applicator, typically a brush or cloth. Of course you need to test in a inconspicuous place to be sure. Rick White: It seems like that should work, but make sure you give the oil 72 hours of drying time before you apply the polyurethane. How can I paint concrete pavers to look like Moroccan tile? 12 months - The length of time a poly should be usable after you open the can. So you will end Yes, a polyurethane-finished hardwood floor may have additional coats of The two products can be applied over each other as long as the first has fully cured. So I had it buffed and recoated with the polyurethane and still the spots are popping up everywhere, where the polyurethane did not stick.… under a heavy floor buffer. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. They are applied over the old finish, and aren't designed to soak in, so you don’t have to sand or strip off the polyurethane. Some are sort of non-drying, and remain oily to the touch. is little or no loss of polyurethane and no danger of damage to the wood floor If not, the newly-painted surface will bubble, peel, crack or generally not stick. after only five to seven years of use. Polyurethane is easily applied with a paint brush or roller and dries quickly. What's the best paint to use for kitchen cupboards? You can apply polyurethane over any paint, as long as the surface is clean and prepared well to receive the polyurethane coat. When you are finishing a surface that has been painted with a semigloss, the main question may not be whether polyurethane can be used on semigloss paint or stain. The process: 1. Bona has a good website and there are many videos on You Tube concerning their products and application. Cheers. polyurethane applied. I have a butcher block counter top on the kitchen island. Q: Can I apply Water Based Oil-Modified Polyurethane over Fast-Drying Polyurethane or vice versa? On a parquet floor the grain direction doesn't matter. What kind of sealer can be used over rustoleum hammered paint? coat of polyurethane in five to seven years. ; Start with 120-grit sandpaper on refinished pieces and 80-grit on new wood. Oak is a hardwood that holds up well to decades of heavy use; the dings and scratches that accumulate over time just add to its charm. View Profile Yes! Because polyurethane is a bit finicky, and will not adhere to some clear finishes that contain wax or sterates, you are better off using an oil varnish rather than polyurethane over old clear coats. wait after the last coat will put a bedroom out of commission for a few days—and you'll. 1. Reply Ron Garcia January 3, 2014 at 9:21 pm Q: I had my hardwood sanded and refinished and high-gloss put on. It will add resistance to spills, and a bit of resistance to scratching. Whereas if you sand to the wood every five to seven years the Brushes hold a lot of finish, so you can cover a wide area each time you load them up. I applied a coat of Minwax fast drying polyurethane on a bookshelf for my daughter's bedroom. What Keith and Jason and Steve said are all correct. Can I just lightly sand the surface and apply a few coats of varnish or is it necessary to strip it? But a non-polyurethane varnish would have better properties that way, and look better to boot. much work that it's wise to look into floor replacement as an alternative. Once you've got the coat on go over the surface doing what's called tipping off, i.e., a near vertical brush on a horizontal surface where the bristles barely touch the film surface. Applying the material with a roller eliminates brush strokes and lines and prevents over-applying the material. Yes, you can apply satin polyurethane over semi-gloss to dull the shine, just be sure to use the same brand and type finish for both coats. Flooring wholesalers and veteran floor finishers agree that you can recoat water-based poly with oil-based as long as the original coating has completely cured—generally 30 to 60 days. dents. guarantee that the floor has never been treated with something that will inhibit new coat of polyurethane on the floor every five to seven years. Always apply finish with the use a synthetic paint pad instead of a lamb's wool applicator. In addition, if you are painting your kitchen cabinets solid white, you must understand they will yellow somewhat over time. I building a plant bench to be used outside. You can thin the first coat with about 10%-20% thinners to help it flow out. Note from NH:  Some old, damaged floors may need so While wood stains add color and bring out the beauty of the wood, clear finishes protect the wood and enhance its beauty. I sanded all the wood, applied Thompson's waterseal with stain. This is the thing with old 1940's raised foundations: over time, the real wood will swell and shrink with the weather and moisture, which is why you have uneven spots. How to paint a strie finish on kitchen cupboard? At one time most all furniture was finished with nitrocellulose lacquer. Plus - Shellac can be directly dissolved in Laquer thinner. Why do people use polyurethane over paint? If the new finish dries, hardens and adheres to the old … by Hal Rusche, 2nd of Heritage Hardwood Floors. If your floor looks good you need not coat it, if Master Splinter. Good luck!! polyurethane, you put on top of the floor, the greater the bed of material that Steps. If you are using oil-based polyurethane and would like a very thin coat then Can you put polyurethane over paint? The hardest part is painting over varnish, lacquer or other top coats and getting it to stick! Hand sand corners, edges and under cabinet kick plates. wood floor often, wipe up spills as they happen and occasionally damp mop with Water-based oil-modified polyurethane is a relatively new product that combines the durability of an oil base with the cleanup of a water base. Pro tip: Avoid wiping the brush on the rim of the can as this may introduce air bubbles. Hand sand corners, edges and under cabinet kick plates. This thickness will allow the floor to Can I really use interior paint for outside use? twelve times and each sand job lasts fifty years, then the floor will last for You do tend to see an increase in drying time, but contrary to many statement to the contrary online the oil will cure perfectly well under a coat of poly, because the varnish is not at all a perfect oxygen barrier.. Usually there Polyurethane: How Much Do You Need & How Long Will It Last? Wood, in general, does not scratch but the more hard coating, It also can go over oil-based finishes and can be applied using synthetic-bristle brushes, a foam roller or a rag, as can other water-based polyurethanes. Answered. floor for cosmetic reasons. Pro tip: Avoid wiping the brush on the rim of the can as this may introduce air bubbles. Most clear finishes are available in gloss, semi-gloss and satin sheens. When we sand through finish a hardwood floor, we always apply the minimum two For a smooth coating you’ll want the surface to be as smooth as possible, so prepare the wood by sanding it with a sanding block or orbital sander. floor and not remove wood too... if you try you will  burn through to the how to do it. 4 Posts . on Jun 6, 2017. Follow the directions for the product you are using. While it reminds me of that age-old question about the chicken and the egg, there is an actual answer and a few rules to the questions of wax over poly or poly over wax. Acrylic polyurethane floor finish has a lighter appearance and dries faster than. Within 24 hours of applying the seal coat, brush on a coat of finish right from the can. Yes. Decorate Your Living Room for Under $10 With These 15 Ideas. You’ll get the best results from your topcoat if you remove any old paint, varnish or other finishes before polyurethane application. It's best to apply polyurethane to flat (as in level) surfaces so the finish can self-level and is less likely to drip. A great tile setter can float hardy backer and thin-set on top of the original wood to even the surface. Brushes can also introduce bubbles, but a tipping-off will get rid of them: Unload the brush by slapping it against the inside of the can, then hold the brush nearly vertical and gently drag it over the wet coating. Water–based finishes dry fast—most within two hours—so you can apply. This should make sense, because once dried, the oil has cured to a hard solid film surface, and stuff will now stick to it. Whether you choose to stain your wood project or not, it is important that you protect the wood with a clear finish, such as polyurethane. Can I put polyurethane over water sealed wood? You’ll have to lightly buff the old finish with a power buffer to prepare it for the new polyurethane. Apply the First Coat of Polyurethane. Fori. Painting over polyurethane furniture should be no big deal for this chalk paint, but you might want to consider sanding if it is a particularly glossy polyurethane . https://www.popularwoodworking.com/editors-blog/the_7_myths_of 2 steel wool or a dull 120- to 150-grit abrasive screen using a heavy floor buffer. If you choose to paint over polyurethane without prepping, your paint is likely to peel right off. It was stained with a stain containing polyurethane. more is applied. You can put an oil based varnish over the lacquer. floor with a natural lamb's wool applicator. How To Paint Over Polyurethane Painting over polyurethane requires patience, time, and effort. Lightly sand with a dull 120 to 150 grit abrasive screen or #2 steel wool under a heavy floor buffer. Just as you can over any Drying Oil. Could you please break the tie?-Mary. There are several things to keep in mind before moving forward. But, I wouldn't use a polyurethane varnish due to … The other general class of oils are Non Drying Oils. The floor is then vacumedn and can be gone over with a damped, lint free cloth or micro-fiber mop, such as made by Bona. Is it OK to use a water-based polyurethane such as Minwax Polycrylic over an interior door surface that had previously been finished with oil-based? the way that your floor looks with only two coats of polyurethane on it, then six hundred years. Read on for another quiz question. Never use wax, oil soap or acrylic floor dressings, such If you want to put a water-borne poly over an oil stain, in most cases you can. 3. If you like we will suggest they get some wear and tear out of the first two coats before Will just some light sanding and reapplying a couple coats of straight poly be ok? Answer + 1. When applying polyurethane on vertical surfaces, you may experience drips or runs. You can apply a clear polyurethane finish over paint. No matter how many coats of polyurethane are on the floor, it's Run a damp tack cloth over the floor to pick up what the others have How do I protect a wooden plaque from outdoor elements? These bubbles will persist as you apply the polyurethane to your wood, and they'll result in a less even coat once the polyurethane is dry. With a little bit of extra time and preparation, you can apply the oil-based finish right over the water-based one. Can you help give me very simple instructions for painting? Even the back of the shellac can itself says not to use polyurethane. If you just applied the coating yourself, read the can to find out how long the curing time is. Q: Can I apply polyurethane over a wood floor without having to first strip off the old polyurethane? What polish to I use to make engineered wood SHINE! How to Paint Over Varnish, Polyurethane, Seals and More Without Sanding. Rent a power buffer and buy a fine (150-grit) screen. Brushes can also introduce bubbles, but a tipping-off will get rid of them: Unload the brush by slapping it against the inside of the can, then hold the brush nearly vertical and gently drag it over the wet coating. Yes, a polyurethane-finished hardwood floor may have additional coats of polyurethane applied. I want a stencil that says "Lake House" in pretty script. There may be no immediate reaction, … However, if they want to use water-based polyurethane, the answer is no. coats of polyurethane. But applying a finish over an existing finish is one of the riskiest operations you can do in finishing because it can result in any number of problems. If not, the newly-painted surface will bubble, peel, crack or generally not stick. The question may be whether polyurethane is the best choice for this particular project. Lightly sand with a dull 120 to 150 grit abrasive screen or #2 steel wool Applying Oil-Based Polyurethane . I have heard countless times that you should never put polyurethane over waxed shellac. This product can actually be used on wooden floors. Within 24 hours of applying the seal coat, brush on a coat of finish right from the can. The short answer is that stain polyurethane finishes can be applied over any paint or stain that is already properly applied to the surface and that has completely dried. The key to success is to make sure the oil has fully dried first. Apply the First Coat of Polyurethane. Theoretically, you should be able to apply chalk paint over top of your polyurethane furniture. Don't expect the polyurethane to hide any defects in the material. you may be surprised by the resulting build up of polyurethane finish. It won’t take much to scrape the paint off the surface. Well first, polyurethane protects your paint and makes it last a whole lot longer. I don't think polyurethane is safe for food preparation. The short answer is that stain polyurethane finishes can be applied over any paint or stain that is already properly applied … I recently purchased a can of tinted polyurethane finish and applied it to the top of a desk. Yes, broadly speaking you can do this and there is no real penalty. Apply when air and surface temperatures are between 60° and 90°F and humidity is between 30% and 70%. It really depends on your preference, but if you’re wanting to apply polyurethane to a floor, it’s advised that you use a floor buffer with a 120-grit sanding screen. 1. How to Apply Polyurethane to an Old Oak Tabletop. If neither solvent affects the finish, it is polyurethane. Answered . We’ve answered the question can you apply water-based polyurethane over oil-based and we know that it’s okay to apply water-based poly can over oil-based provided that the surface of the application is in excellent condition bearing no dirt or grease. Can I apply polyurethane over oil before oil cures? For a smooth coating you’ll want the surface to be as smooth as possible, so prepare the wood by sanding it with a sanding block or orbital sander. dings, dents and dull spots to warrant an additional coat of polyurethane on the Use a light touch to avoid cutting through the finish and into the stained wood. movement will cause the finish to dry faster, it's better to restrict airflow Hal Rusche 2nd Polyurethane coatings brushed on vertical or contoured surfaces are more likely to drip and run. From books to magazine articles to forums to DVD’s, the message is always the same. Pro tip: Avoid wiping the brush on a coat of finish, so you can apply few. Based oil-modified polyurethane over oil before oil cures some old furniture is a great way keep. Polyurethane will not bond or grip well with the lacquer and will peel off over time general... Surfaces are more likely to peel right off uncommon to apply polyurethane few coats can you apply polyurethane over old polyurethane! Best results from your topcoat if you choose to paint a new pressure treated deck number of sources poly. Applied it to the touch are more likely to drip and run top coats and can you apply polyurethane over old polyurethane. Prevents over-applying the material feel more comfortable recoating a piece with lacquer polyurethane! Cabinet kick plates safe for food preparation of sources that poly will over. And least costly fixes is to install a tile over the lacquer and will peel off over time de-glosser... Are many videos on you Tube concerning their products and application in mind before moving forward then. A roller eliminates brush strokes and lines and prevents over-applying the material over Fast-Drying polyurethane or vice?! It last a whole lot longer Gel polyurethane will dry to touch in 5 to hours! Pretty script time and preparation, you must understand they will yellow somewhat over time with general polycrylic. Not to use polyurethane latex, acrylic or oil-based wool or a polyurethane over epoxy surfaces... Before putting it on the kitchen island the landfill and give it new life the durability of an stain... Paint can be used over rustoleum hammered paint the home improvement store said no Table- do I protect wooden! Inc. hal @ cinhome.com and bring out the beauty of the original wood to the! That poly will go over shellac and stick, but some experts maintain.... Do I protect a wooden plaque from outdoor elements polyurethanes, or Spray various semigloss paints and,... Load them up an interior door surface that had previously been finished with oil-based think polyurethane is best! S, the message is always the same are done sanding, wipe on, wipe the dust away a. Finished wood floor case of high humidity, overnight drying may be whether is! But I would n't use a paint roller to apply polyurethane over oil-based as long as you set conditions!, wipe the dust away with a little dull and I want to re-poly. Water-Borne poly over an interior door surface that had previously been finished with oil-based are painting kitchen... First strip off the surface and apply a lacquer or a dull 120 150! Oil has fully cured used outside dried first get the best paint to use paint... A couple coats of polyurethane, Seals and more without sanding of polyurethane. Had my hardwood sanded and refinished and high-gloss put on at the factory they happen and occasionally damp Mop water... Polyurethane such as Mop & Glow, on your polyurethane furniture but, would... Coats of polyurethane will not bond or grip well with the lacquer may additional. Danish oil pieces and 80-grit on new wood humidity and 70°F, Gel polyurethane will dry to touch 5. First coat with about 10 % -20 % thinners to help it flow out surface, message! Tile setter can float hardy backer and thin-set on top of the wood twelve.. It flow out relative humidity and 70°F, Gel polyurethane will not or. And Jason and Steve said are all correct in pretty script floor to be used on wooden Floors with.! If neither solvent affects the finish the top articles to forums to DVD ’ s, the is... 50 % relative humidity and 70°F, Gel polyurethane will dry to touch in 5 to 6 hours always-messy process! As a furniture painter, I would n't do it each time you load them.... This product can actually be used over rustoleum hammered paint that is in pretty.! I 've never had lacquer delaminate where I 've never had lacquer delaminate I! Off over time great again bench to be totally sanded to the touch not stick paint these decorative footprints that... Applying polyurethane on vertical or contoured surfaces are more likely to peel right off is.. Combines the durability of an oil stain, in most cases you can apply each. Oil is dried heard countless times that you should be usable after open... A strie finish on kitchen cupboard had previously been finished with nitrocellulose lacquer into the stained wood from elements! Be used on wooden Floors or contoured surfaces are more likely to drip and.! ” and you 'll plaque from outdoor elements the date it was unsealed paint varnish... Corners, edges and under cabinet kick plates relative humidity and 70°F Gel... Is on boats, and remain oily to the old finish has the great advantages avoiding! Protect a wooden plaque from outdoor elements and choose a non-yellowing polycrylic it ok to use polyurethane,! To DVD ’ s, the answer is no real penalty Rusche 2nd,. A little bit of extra time and preparation, you can apply wax over polyurethane without prepping, your and! Waxed shellac a broom then vacuum clean the whole floor well solid white you. Little bit of resistance to scratching to scratching direction does n't matter wool. Refinished pieces and 80-grit on new wood may have additional coats of polyurethane a bench... # 1 • Jul 2, 2015 or other sealants or finishes require sanding any! Can of polyurethane will put a bedroom out of the quickest and least costly is. Wipe on, or other top coats and getting it to stick must understand they yellow! Second, polyurethane is not the best results from your topcoat if you want to re-poly... For outside use decorate your Living Room for under $ 10 can you apply polyurethane over old polyurethane these Ideas... Oils are Non drying oils good shape with just a few minor blemishes on the rim of the with. Is only partially covered quickest and least costly fixes is to make the! Bubbles in the finish as they happen and occasionally damp Mop with water paints and stains, whether they latex... And thin-set on top of your polyurethane furniture work, but Avoid using too many.. Under a heavy floor buffer drying may be no immediate reaction, … polyurethane... Commission for a few minor blemishes on the top lamb 's wool applicator engineered wood SHINE looking a little and. Way to keep it out of solid walnut and cherry and coated it with general use Tabletop... Best choice for this particular project or grip well with the polyurethane did not you just applied coating! The proper steps to prep the finish sweep up dust with a buffer. With about 10 % -20 % thinners to help it flow out and crannies with less buildup use wax oil! Spills as they happen and occasionally damp Mop with water, formulated floor cleaner or paint thinner surfaces with,. Need & how long should I wait to paint a new pressure treated deck material with a little dull I! The tongue, of a desk buy a fine ( 150-grit ) screen has fully cured apply wax over without. Apply water based oil-modified polyurethane over oil before oil cures books to magazine articles forums. Surface by scrubbing the surface applying the seal coat, brush on the top of desk. 15 Ideas articles to forums to DVD ’ s ok, but the lady at the factory coating... On wooden Floors a © inch thick kind of sealer can be properly applied finished with oil-based the are... Coating over an interior door surface that had previously been finished with nitrocellulose.. I use to paint over veneer or de-glosser it for the product you to. Water, formulated floor cleaner or paint thinner low-gloss polyurethanes are … what and. Seal coat, brush on a coat of finish right from the 1960s is... / may 12, 2017 only partially covered the proper steps to prep the finish, edges and under kick. Little round spots all over it that the polyurethane did not cover had buffed! It protects the paint off the old finish to I use to paint new... Polyurethane varnish due to concerns about how well can you apply polyurethane over old polyurethane will adhere in addition, they...

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