No inherent reason it wouldn't work on painted wood. You can use either a brush or roller to apply, and it goes on the paint a lot easier than applying polyurethane to bare wood. Will dish liquid help eliminate toilet from being clogged ?? Polyurethane can even help prevent the color of the paint from fading as a result of being exposed to the sun. Make sure you apply multiple coats of paint, and sand lightly in between coats. If a electrical device is not properly hooked up with the right wires will it catch on fire? Apply your first coat and then let the polyurethane dry for the time listed on the container. I have just hand painted a bicycle and I want to protect the painting so I can ride it. I have used Sonneborn NP-1 for years on commercial buildings and garage floors prior to the application of a high performance finish, with perfect results. You’ll have to prime, sand and use oil-based paint in order for your paint to stick to the finish of your wooden furniture. Use a water-based product if you're concerned about color because it won't yellow as much as an oil-based one. After you are done sanding, wipe the dust away with a damp cloth. The wall or device? For use on wood, metal or painted surfaces. These two run the extremes of ease of use… Trex vs Veranda Decking: Which Is the Better Choice? I have a desk that is coated in a metal sheet. Although different kinds of paint and different humidity levels will determine how long it’s take paint to cure, the average length is a week. We want to cover it up. You can choose from polyurethane, lacquer, shellac, or even varnish. Can you use polyurethane on painted metal? You need some kind of etching primer or epoxy primer applied first to a sanded or blasted surface. Wipe it down before you use it with rubbing alcohol. It’s recommended that you use either a brush or spray it on. Start by cleaning the surface and filling in any cracks or imperfections. For most painted furniture, a polyurethane coat is not necessary. A still more popular use of polyurethane in textiles is in the form of spandex, also known as elastane or by DuPont's brand name Lycra. The product dries to an evened-out, low-sheen finish, and as soon as it cures, which could take up to a month, it becomes rock-hard – a must-have feature if you want a tabletop that’s able to withstand daily wear and tear. 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. How to Use Metal Sealants for Painted Metals. The idea here is to flatten out the sheen while also preventing any deep scratches from forming. The real difference between these two polyurethanes is that oil-based polyurethane has an amber tint to it whereas water-based polyurethane is clear. The first time I … Thinning your polyurethane out can cause it to run excessively. When you hang it and look at it, it will resemble glass on a window. Join Yahoo Answers and get 100 points today. 0 0. I painted these pots with acrylic craft paint to stack out front to add some color to my front porch. Don’t let the name confuse you – we’re still talking about polyurethane coatings here!. How do you think about the answers? Price: $10-$20 per quart Availability: Available on Amazon or at your local home improvement store. spending bill, NFL team strips QB of captaincy after nightclub visit, Black man sues cops for humiliating backyard incident. Save my name, email, and website in this browser for the next time I comment. So, to properly apply polyurethane over paint: Grease stains, dirt, dried mud, and any sort of other filth needs to be washed off before you can apply the first coat of polyurethane. It’s durable, flexible, and resilient. Polyurethane has a longer life-span than rubber, paint, foam, or other applications. Why do people use polyurethane over paint? The weather is brutal to coatings on metal, and so keeping up with a rejuvenating coat every once in a while is always a good idea to stop rust from forming. This will save you both time and money. Apply your second coat. I have just hand painted a bicycle and I want to protect the painting so I can ride it. ; Application: Can be applied with a brush, a foam brush, or wiped on with a rag. Polyurethane can even help prevent the color of the paint from fading as a result of being exposed to the sun. I am building a garden shed and need help? Brush left to right, applying gentle pressure as you move your paintbrush. Poly should never have been added over the paint. I painted my car and used a clear coat spray enamel which worked fine but I don't want to disassemble my bike to spray it... Would a high gloss polyurethane sealant work on metal so I could paint it by... You can as long as the metal is free from any type of grease, dirt , oil. Finishes: Comes in Satin, Semi-Gloss, and Gloss finishes. Use a soft sponge or rag and a powerful detergent to clean up the painted surface. Ive been looking for a polyurethane I can brush on to protect them from the elements. I painted my car and used a clear coat spray enamel which worked fine but I don't want to disassemble my bike to spray it... Would a high gloss polyurethane sealant work on metal so I could paint it by hand?? Wipe it down before you use it with rubbing alcohol. After that, you should be good. This metal sheet gives hands and arms a metallic feel. To help prevent this from happening, it’s recommended that you use a water-based paint when coating it with a couple polyurethane layers. Buy the best brushes you can for the project. Powder coating is one of the longest lasting finishes you can have, it will long out live a painted finish on metal. Before you add a few polyurethane layers over dried paint, you’ll need make a few preparations before you can get started. Minwax Polyurethane. Applying one or two coats of polyurethane to a painted surface is a recommended way to protect the paint. I would usually recommend an acrylic base coat followed by a urethane. Although polyurethane is mainly used on stained wood due to the durable finish it provides, some homeowners use it over paint. Fox News host: 'It appears we have been punk’d', Star stands up to shamers after photo used as joke, WH staffers receive curious departure instructions, Iconic British supermodel Stella Tennant dies at 50, Debt cancellation backed by more than half of U.S.: Polls, Food Network star describes 'sinking ship' restaurants, How Biden will deal with the Pentagon's generals, The fine print in a 5,593-page govt. I’ve searched online and can’t find a match for this. It performs amazingly for both the interior and exterior wood surfaces. Why do people use polyurethane over paint? Even fingerprints! If you wish to remove polyurethane from painted metal, you need a strong stripping chemical that will cut through the layers of finish and enable you to remove them from the surface manually. The best part? The finish will be darker than dry rust but similar to rust sprayed with water or oil and can be top coated with a polyurethane for a more durable finish. Vary rarely will you ever need a 3rd. However, there are some oil-based paints when coated with polyurethane have been known to turn a yellowish color overtime. Well first, polyurethane protects your paint and makes it last a whole lot longer. Can You Have Stained Doors With Painted Trim. 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. A polyurethane finish prevents other materials from adhering to its surface. First one up is the General Finishes Water-Based Urethane Topcoat. Well first, polyurethane protects your paint and makes it last a whole lot longer. If your going to use paint then your going to have to deal with having to redo it after a few uses. If I left a window open for 30 seconds when its lightly raining, would it cause mold on the wooden window sill? The surface should be well prepared before applying the sealant. It does this by serving as a highly resistant barrier which protects your paint from rain, dirt, mud, fungus, and mold. After your polyurethane has fully dried, you’ll want to scuff scratch up the surface again with a piece of 120-grit sandpaper. Polyurethane fibers in the form of spandex can stretch up to 600% and still return to their original shape. Once your painted surface is dry, then you’ll want to equip yourself with a 120-grit sandpaper, so you can scratch the surface. RE: can you use polyurethane on metal? Oil-based polyurethane can yellow as it ages on paint, changing the color or your surface. How to earnings up to  $500 within 30days. It can be used alone as a base coat on bare metal and will fix the rust while preserving the appearance. All of our metal products are made of steel with a powder coated finish, which provides protection from the elements while resisting fading, chipping, corrosion, and other signs of wear. With the correct product and a little effort, your metal surface will be free of polyurethane. You can but make sure you sand it first to key it and wipe it down prepsol or thinners first. Mike Bailey works in the commercial construction industry in Missouri. First try the polyurethane in an inconspicuous spot to make sure it doesn't dissolve the existing paint. Can you use polyurethane on a metal surface? Regardless of the type you use, if your project will see a lot of wear and tear, few finishes are as appropriate as polyurethane for the protective topcoats. I’m looking for a slow close, wide, cushioned toilet seat. I've used polyurethane on both bare wood and on painted metal with good results. This is a really effective cleaning solution. Even fingerprints! Is a tub spout with diverter to CODE on a regular bathtub with no shower? Remove peelings from paint, rust, elements of corrosion, dirt, oil, or grease. Is it bad to go to sleep in damp cloths ? Open the can of polyurethane, then stir the clear finish, using a wooden stirring stick. A good polyurethane should do the trick. At what location? Get your answers by asking now. Video of the Day Volume 0% Polyurethane is one amazing product, but the question that a lot of people what to know is, can you polyurethane over paint? By doing this, you’ll remove small dust particles in addition to squishing and flatting any bubbles that have became hard in the finish. You can also purchase polyurethane in a spray can which makes it a bit easier to apply, especially on large projects. Polyurethane is a very useful product with multiple uses. You can take a ½ cup of trisodium phosphate and mix it with warm water. Polyurethane caulk can be applied to very large gaps, 1 inch or more, and not loose its ability to create a perfect seal. Still have questions? Press Esc to cancel. . Painting over polyurethane requires patience, time, and effort. Keep the paint color on hand for touch-ups, and your painted furniture should serve you well. Can I used a 60amp fuseless disconnect box for a 120 volt air compressor or do I need a 30amp box? So, how do you polyurethane over paint? Furthermore, polyurethane application is a very simple procedure that virtually any household handyman is capable of tackling—provided, of course, that they're armed with the proper set of … In addition to this, oil-based polyurethane has a stronger scent to it and tends to dry slower than water-based polyurethane. Understanding the differences between lacquer vs. polyurethane durability can help you to make a wise choice when it comes to finishing y… Make sure you let whatever it is you coated 24 hours to fully dry. It does this by serving as a highly resistant barrier which protects your paint from rain, dirt, mud, fungus, and mold. But with the right materials, and a little bit of elbow grease, you can paint over the polyurethane. Whatever coating you use to protect the metal, there is some maintenance involved, especially if there are moving parts or the items are stored outside. This makes the urethane much easier to strip, when it comes time to repair/maintain the patina and substrate. Regardless of how you clean the metal, make sure that it is clean and in exactly the state you want preserved beneath the lacquer coats. You can use Ranthane HS over the fabric and metal parts; all surfaces will have the same gloss and uniform look. Any recommendations? If you do decide to spray on your polyurethane, you don’t have to thin it out. While powder coating is long-lasting and much harder than traditional paint, no finish lasts forever! This process helps increase the polyurethane adhesion by deglossing the finish while also cleaning it too. Typically, you’ll never need more than two coats. As a result, you won’t have to replace it as often. It’s important to note that your paint should be fully cured before you apply a layer of polyurethane. He also enjoys writing construction and home improvement related articles. It is recommended that you apply the sealant over a primer to enhance its resistance to corrosion and rust. Tape any parts of the metal that you do not want covered in lacquer. Polyurethane coatings cure fairly rapidly, even at lower temperatures, but most require a catalyst. You can use it on unfinished and stained wood, painted, varnished, lacquered surfaces, etc. Can you put polyurethane over paint? 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