However, if you choose the water-based Polyurethane, you can opt for any paint sprayers as most of them will provide you efficiency with water-based paints as well as Polyurethane. simply put, yes. At this point, you have done the necessary preparation by cleaning and deglossing. Whenever I want to spray oil-based poly, I go for the spray paint version of the Minwax Fast Drying Polyurethane (linked below). A polyurethane finish or varnish is a durable coating that protects a wooden surface, which means you can’t paint directly over it or your paint won’t adhere to it. In most cases I have been able to spray my oil base, and come back in 45-60 minutes and spray some poly or poly/varnish over it. Instead, you should be using a different type of paint - you can use Minwax Polycrylic. Could I put polyurethane over old polyurethane? Step 7 – Polyurethane or Wax Over Chalk Paint (or skip to OPTIONAL color washing) You may want to use a wax and if so, please follow the manufacturer’s instructions. It keeps moisture from damaging the wood. Details and inside corners are difficult to cover with any paint color, but this property tends to be more noticeable with whites. Polyurethane is typically hard, durable and glossy, and it is these qualities that make a finish vulnerable to chips and flaking. Comparing Polyurethane to Other Finishes. Remove Loose Rust and Paint. You don't have to remove all the varnish before you start painting. The problem is that nothing can ever be put over wax – not poly, not paint, or even primer in most cases. In short; you CAN apply a lacquer or a polyurethane over a Danish oil. Don’t worry it will dry the same color and blend right into the original paint! I chose to use a Polyurethane, so this piece can be easily painted over later in life. 5. yes, I use a 2pak polyurethane by U-pol (S2086EV) with great success. You can as well use a vacuum cleaner, if you have one, to remove all the traces of dirt that remained after roughening. An oil-based primer is your best bet since other types of paint primers are not compatible with a polyurethane finish. You’ll get the best results from your topcoat if you remove any old paint, varnish or other finishes before polyurethane application. A light scuff will not give you a solid mechanical bond. If you are using vinyl paint, then be certain you receive the ideal kind of paint, and then adhere to the aforementioned guidelines to paint and prepare the surface. Can i put a minwax polycrylic brush on gloss clear coat over a piece of spray painted wood? I put on a coat of Rustoleum metal primer (spray). I am painting a shot put, as in a 6-lb iron ball for track-and-field. A varnish (or varnished look) can be achieved with products or combinations of products that include polyurethanes, lacquers, epoxies, etc. That aside, you are not supposed to use a polyurethane over paint and if you call the manufacturers, they will say "you can try it, but we don't guarantee anything." If you are going to then use a water-based poly since it doesn't yellow like the oil based. Apply the paint. It is also a finish coat that brings an immaculate shine and magnifies the beauty of everything from flooring to furniture. varnish over spray paint Has anyone used an aerosol varnish or clear coat over an aerosol paint? You can use a fine bristled brush, a spray can, a lint-free rag, a foam brush, or a roller. Start by cleaning the surface and filling in any cracks or imperfections. Your paint will not stick well to a polyurethane treated furniture unless you prime it. As another commenter said too, the spray stuff is kinda crap. Source(s): put water-based poly on concrete floor and oil-based in living room and it looks like pee stains all over the place. Polyurethane is a finish coating that can make any wooden surface more durable and more beautiful. 4 Posts . Polyurethane coatings are made with mineral oil solvents or may be a water based polyurethane, so the answer depends on what you are repainting with, and which polyurethane you are painting over. Have good ventilation and wear an approved respirator mask. You should keep your paint sprayers clean after every use. I applied a coat of Minwax fast drying polyurethane on a bookshelf for my daughter's bedroom. You can paint over a surface of polyurethane varnish if you prepare it properly. Best epoxy gloss coat I've found. Discussion Starter • #1 • Jul 2, 2015. Depends why you want to apply the poly over the enamel. Remove loose rust with a wire brush, sandpaper or chemical rust remover. Oil based spray paints can take up to a couple days to really cure or dry completely. How to Use Oil‐Based Polyurethane over Water‐Based Polyurethane. I sanded off what was left of the old finish. after the latex or other water borne product has cured, generally specified on the label, the polyurethane cannot penetrate or reactivate the paint. Follow the same directions on how you applied the primer. Paint is not a varnish. I’d love to update it with fresh paint and new hardware, but I’ve heard that you can’t get good results painting over stain. If the spray is wet when you apply the poly the spray might run. Feel free to follow this by applying the water-based polyurethane. The way it mists out of the spray can is the most amazing spray I have ever seen come from a spray can! I did a test piece and it looks fine 24 hours later, but will it fail in the future or start to chip? Great clarity, resistance to abrasion and can be polished to a supper shine, doesn't quite have the depth of a poly gloss coat but is as close as you are likerly to come. If it is badly damaged or if you no longer have any of the paint for touch up or repainting, consider sanding and priming with an oil-based primer and repainting with water-based paint. Q: My childhood dresser is beautiful but the wood stain looks faded. The key to success is to make sure the oil has fully dried first. Yes, you can paint latex paint over polyurethane stain after applying an oil-based primer. Yes- you can put oil based poly over spray paint. You can apply it over your chalk paint finish or any finish using a regular paintbrush. You can buy one at a paint supply store. I have a butcher block counter top on the kitchen island. It is a protectant and sealer. If you spray poly on too soon, that moisture has nowhere to go and can cause the whole thing to buckle or flake (or not dry properly!). Can You Put Polyurethane Over Chalk Paint - Though the paint is a bit thicker than latex, then it does not necessarily cover 1 jacket? With some prep work and these simple tips, you can successfully paint over polyurethane or other finished wood and give your furniture or trim a whole new look! Oil and water are famous for repelling one another and not mixing. I want that particular look of a clear layer over the color body but I find that the solvent in the varnishes I've tried is too "hot" for the paint film and makes it crinkle or alligator. 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. Unfortunately, you are faced with a challenging situation and, without seeing the piece, and knowing the products used, I can’t guarantee the outcome you want. In other words you want to know how quickly you can put the poly over the freshly painted oil, without sanding and without causing the oil to wrinkle. Some people choose polyurethane over spray paint, polycrylic, or other finishers because it has a more durable finish that does not chip or cracks over time.In general, polyurethane is your standard “go-to” all purpose finisher. When you work on antiques most of the time you can just touch up the finish with lacquer. This post contains affiliate links for your convenience. 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. ; Start with 120-grit sandpaper on refinished pieces and 80-grit on new wood. A polyurethane finish can prolong the life of paint and prevent ultra violet rays from causing it to fade. Spraying polyurethane with a paint sprayer takes out the most volatile variable and makes the entire project far less reliant on your skills as a painter.. Spraying polyurethane requires a few extra steps to ensure quality but the added effort will leave you with a better-looking finish and less time spent fixing mistakes.. ... A tack cloth is a special, sticky cloth for this exact purpose. Unfortunately, when many do-it-yourselfers apply polyurethane over a water-based latex or acrylic paint, they end up with rampant flaking. Answer + 1. Any paint will adhere to the polyurethane if and when the surface has been properly abraded. If I wait longer than that I have to wait 16-24 hours and then sand. Yes, you can spray paint over rust. Vinyl paints, as mentioned before, are not eco-friendly. Surface preparation is extremely important and is the best predictor of how long your new paint finish will last. Before you paint, take the time to prepare your surface properly. You can do the application using a sprayer or even a lint-free cotton clothing. The problem is the protective coating over the paint. Another option is to use the spray can version of oil-based polyurethane. It really depends on the spray paint dry time. WHAT YOU NEED TO KNOW ABOUT WHITE PAINT: Bright white paints can yellow over time with or without topcoat. But with the right materials, and a little bit of elbow grease, you can paint over the polyurethane. Answered. I put on a few coats of oil-based Rustoleum paint (spray). If you do, add a coat of polyurethane on top of the stain before you apply the sticker, as the wood stain can affect how well the sticker adheres to the wood. However, if you are lazy to work with painting this coat, you may as well spray it onto the surface you want to coat. How often should you clean the paint spray guns available in the market while working with Polyurethane? Be sure to wear a respirator mask and apply the finish in a well ventilated area, especially if you are using oil-based polyurethane or using a spray can. 5. I am sure the rustoleum spray paint is oil based. Polyurethane will seal in dirt, dust and pet hair and preserve it forever in the final finish. Adding polyurethane to wood may seal the sticker, but over time you may still find that it starts to come unstuck. Paint the surface with an oil-based paint. It is the nature of oxidation. Can I spray paint over rust? I put 2 coats and it still came off. Just as you can over any Drying Oil. The underlying finish or wood species can affect the final color of light paint. ... Over a year to spray paint had faded. It was stained with a stain containing polyurethane. Purchases made through these links may earn me a small commission at no additional cost to you. Determine if the oil-based color coat is worth keeping. Of course you need to test in a inconspicuous place to be sure. 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