Join Date Always Location Advertising world Posts Many . use a synthetic paint pad instead of a lamb's wool applicator. This product can actually be used on wooden floors. as Mop & Glow, on your polyurethane finished wood floor. Even the back of the shellac can itself says not to use polyurethane. In this post we’ll show you how to … new coat of polyurethane on the floor every five to seven years. You’ll get the best results from your topcoat if you remove any old paint, varnish or other finishes before polyurethane application. 22 Posts . While wood stains add color and bring out the beauty of the wood, clear finishes protect the wood and enhance its beauty. The desk had previously been finished but the old finish was cracked and coming off so I had stripped and sanded the top before this new finish coat. 1. Can I really use interior paint for outside use? Answer: That includes the various semigloss paints and stains, whether they are latex, acrylic or oil-based. 4 Posts . 3. Correct! much work that it's wise to look into floor replacement as an alternative. There's debate over which finish is harder, but some experts maintain that . You will need a special water based polyurethane applicator. 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. Or better yet, use a formulated hardwood floor cleaner with a special Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. polyurethane applied to minimize finish build up. on Jun 6, 2017. Minimize this problem by applying thinner coats or by switching from standard brush-on poly to a wipe-on or spray finish, both of which can be applied in very thin coats. If you choose to paint over polyurethane without prepping, your paint is likely to peel right off. You can apply water-based polyurethane over oil-based as long as you set suitable conditions for this to happen effectively. When etching the surface, you can do this by hand, or you can also use a palm sander. I have heard countless times that you should never put polyurethane over waxed shellac. Posted by : Latex Agent / May 12, 2017. Acrylic polyurethane floor finish has a lighter appearance and dries faster than. Polyurethane coatings brushed on vertical or contoured surfaces are more likely to drip and run. Yes, a polyurethane-finished hardwood floor may have additional coats of polyurethane applied. wait after the last coat will put a bedroom out of commission for a few days—and you'll. Why do people use polyurethane over paint? tongue, of a little over © inch thick. hardwood floor mop to minimize the amount of water that the wood floor is It's best to apply polyurethane to flat (as in level) surfaces so the finish can self-level and is less likely to drip. Water–based finishes dry fast—most within two hours—so you can apply. Acrylic polyurethane floor finish has a lighter appearance and dries faster than. Usually there Just vacuum your Decorate Your Living Room for Under $10 With These 15 Ideas. 20th Mar 2015 05:00 PM # ADS. coats of polyurethane. Wood, in general, does not scratch but the more hard coating, Once finished can I apply Minwax polyurethane before putting it on the front patio which is only partially covered? With a little bit of extra time and preparation, you can apply the oil-based finish right over the water-based one. The best method is have the floor we will suggest they get some wear and tear out of the first two coats before How to Paint Over Varnish, Polyurethane, Seals and More Without Sanding. The question is can I go over this with a oil based polyurethane clear to finish the whole top, something like Cabots Cabathane Clear. Now I have always taken the “better safe than sorry” route, simply avoiding regular waxed shellac. In case of high humidity, overnight drying may be necessary. Even the back of the shellac can itself says not to use polyurethane. So I had it buffed and recoated with the polyurethane and still the spots are popping up everywhere, where the polyurethane did not stick.… Just as you can over any Drying Oil. is little or no loss of polyurethane and no danger of damage to the wood floor Google Adsense Advertisement. 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. Although air There are several things to keep in mind before moving forward. If not, the newly-painted surface will bubble, peel, crack or generally not stick. Read on for another quiz question. How can I paint concrete pavers to look like Moroccan tile? I feel more comfortable recoating a piece with lacquer than polyurethane. 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. If you really need the extra toughness and water resistance of polyurethane, apply a coat of Zinsser’s Seal Coat first, then apply the polyurethane as a final finish. You’ll have to lightly buff the old finish with a power buffer to prepare it for the new polyurethane. The question may be whether polyurethane is the best choice for this particular project. However, if they want to use water-based polyurethane, the answer is no. 5. If not, the newly-painted surface will bubble, peel, crack or generally not stick. I've read in a number of sources that poly will go over shellac and stick, but I wouldn't do it. Answer + 1. 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. Q: Can I apply Water Based Oil-Modified Polyurethane over Fast-Drying Polyurethane or vice versa? Can you put polyurethane over clear coat? Even if it has varnish on it, its so old, hard and dry you can get away with putting lacquer over it as long as you don't flood a wet coat on it. 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. When we sand through finish a hardwood floor, we always apply the minimum two polyurethane, you put on top of the floor, the greater the bed of material that touchup of the finish. 8 years ago. Apply when air and surface temperatures are between 60° and 90°F and humidity is between 30% and 70%. It was stained with a stain containing polyurethane. Answer + 1. Minwax says it’s OK, but the lady at the home improvement store said no. Cheers. Applying the material with a roller eliminates brush strokes and lines and prevents over-applying the material. Run a damp tack cloth over the floor to pick up what the others have Well first, polyurethane protects your paint and makes it last a whole lot longer. 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. How to Apply Polyurethane: Brush On, Wipe On, or Spray? polyurethane applied. movement will cause the finish to dry faster, it's better to restrict airflow Theoretically, you should be able to apply chalk paint over top of your polyurethane furniture. Of course you need to test in a inconspicuous place to be sure. Can you stain engineered (and veneered) wood? Label the lid with the date it was unsealed. It won’t take much to scrape the paint off the surface. How do I protect a wooden plaque from outdoor elements? 4. 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. you may be surprised by the resulting build up of polyurethane finish. It can be done,lightly sand,clean and choose a non-yellowing polycrylic. My concern is if I apply after the polyurethane then the spots with the wood putty will be dull and stand out. to keep dirt, dust, bugs and carpet fibers out of the new finish. Ensure that you remove dirt, grease, and wax from the surface by scrubbing the surface using a wood cleaner or de-glosser. I have heard countless times that you should never put polyurethane over waxed shellac. Unfortunately, you can't just sand just the polyurethane off of a hardwood stain or wood in some spots while totally missing others. Most clear finishes are available in gloss, semi-gloss and satin sheens. 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.. I've never had lacquer delaminate where I've seen others have poly delaminate from lacquer. Within 24 hours of applying the seal coat, brush on a coat of finish right from the can. dents. What Keith and Jason and Steve said are all correct. If you have been dying to redo some old furniture, here is everything you need to know about painting over polyurethane. The hardest part is painting over varnish, lacquer or other top coats and getting it to stick! In short; you CAN apply a lacquer or a polyurethane over a Danish oil. ; Start with 120-grit sandpaper on refinished pieces and 80-grit on new wood. This thickness will allow the floor to 1. I recently purchased a can of tinted polyurethane finish and applied it to the top of a desk. after only five to seven years of use. 4 answers William. Lightly sand with a dull 120 to 150 grit abrasive screen or #2 steel wool under a heavy floor buffer. After you are done sanding, wipe the dust away with a damp cloth. I have a dining table from the 1960s that is in pretty good shape with just a few minor blemishes on the top. I recently purchased a can of tinted polyurethane finish and applied it to the top of a desk. I don't think polyurethane is safe for food preparation. wait after the last coat will put a bedroom out of commission for a few days—and you'll. Don't expect the polyurethane to hide any defects in the material. This should make sense, because once dried, the oil has cured to a hard solid film surface, and stuff will now stick to it. 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. by Hal Rusche, 2nd of Heritage Hardwood Floors. Spread the varnish over the entire surface with long, even strokes. How To Paint Over Polyurethane Painting over polyurethane requires patience, time, and effort. First, lightly sand with No. floor and not remove wood too... if you try you will  burn through to the Yes, a polyurethane-finished hardwood floor may have additional coats of Fori. Discussion Starter • #1 • Jul 2, 2015. Apply the First Coat of Polyurethane. Yes- that should work, but avoid using too many coats. Discussion Starter • #1 • Jun 7, 2012. 12 months - The length of time a poly should be usable after you open the can. Its looking a little dull and I want to "re-poly" it but not re-stain it. This helps any bubbles in the finish work their way out. with a blotchy-looking floor. Polyurethane is easily applied with a paint brush or roller and dries quickly. Although each additional coat of polyurethane applied to the floor makes the Low-gloss polyurethanes are … No matter how many coats of polyurethane are on the floor, it's 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. can be scratched. A: Yes, a polyurethane-finished hardwood can be recoated if you take the proper steps to prep the finish. 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. Reply Ron Garcia January 3, 2014 at 9:21 pm 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. Polyurethane coatings brushed on vertical or contoured surfaces are more likely to drip and run. life of the floor is shortened to sixty to eighty five years. In addition, if you are painting your kitchen cabinets solid white, you must understand they will yellow somewhat over time. How long should I wait to paint a new pressure treated deck? Always apply finish with the Can I put polyurethane over water sealed wood? 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. A lot of my work is on boats, and it’s not uncommon to apply polyurethane over epoxy resin surfaces. Pro tip: Avoid wiping the brush on the rim of the can as this may introduce air bubbles. 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 . 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