I do mostly production lacquer finishing but have done some poly jobs when water was going to be a problem. It could also be okay if you live in an area that is not susceptible to major heat changes from summer to winter. First, it should be noted that oil-based polyurethane does have more fumes, so you will want to consider using a respirator in a well-ventilated area. You can either use a vinyl … It forms a hard finish that is particularly resistant to damage that stems from water and heat. if its poly - I'll brush first 2 coats (foam brush - I don't get bubbles), which build up more than a wipe-on version, sand 400 grit in between to knock off any high spots. That outdoor furniture that you bought years ago could use a fresh sanding and a new topcoat. Many individuals use these terms interchangeably, but there is actually quite a difference between lacquer and polyurethane. You can find lacquer and polyurethane that are comparable in price, but which one is really the better bargain? Applying it is simple with either a natural-bristle brush or a rag. However, this is just an approximation. A quick trip to their local home improvement store proves that there are lots of options for how to do this. You might get away with a couple of coats of a nitrocelulose, anything more than 1 is risky with a CV. Minwax ® Wipe-On Poly is a durable, clear polyurethane that provides protection with classic, hand-rubbed beauty. Unlike polyurethane, where you must sand the surface in order to apply a new coat, lacquer is generally thin enough that a new coat can be sprayed over the surface without the need for this. Lacquer is always a high-gloss option that shimmers and shines, but you can get a more matte finish with a polyurethane. This is an additional cost because you will have to supply more materials to get the job done right. If I were you I wouldn't even waste my time sanding. No matter what your unique situation is, many people find that they need to know what type of finish should go on their latest wood project. Just keep in mind that WAX IS ALWAYS LAST.Just like when you wax a car, wax is the very last thing you do for a beautiful finish and protection. This makes it ideal for flooring, particularly if you have big dogs or small children who will be particularly hard on your floors. Paints with a high sheen do not need to have polyurethane applied to them. Last but not least, there are nitrocellulose lacquers. Because lacquer is typically applied in thin coats, you can often touch up the finish without having to sand and reapply an entirely new coat. Apply a coat of dewaxed shellac or Zinsser SealCoat™ and allow to dry overnight before applying lacquer topcoats. This would be ideal if you were going to use your outdoor furniture in a sunroom that was climate-controlled. Now that you know what type of finish to use on your exterior projects, it is time to turn your attention to the high wear areas of your everyday home. Polyurethane. The thickness of the polyurethane also means that it takes fewer coats to get adequate coverage and to protect the wood beneath. 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. It would go over a few coats of stewmac colortone tinted lacquer-red. I was thinking of doing a minwax wipe on poly urethane finish on my recently built saga guitar kit. Unfortunately, lacquer is also known to peel and discolor over time. Unlike polyurethane, where you must sand the surface in order to apply a new coat, lacquer is generally thin enough that a new coat can be sprayed over the surface without the need for this. Prefer to stick with water based if possible but i really want what will look best. This option is less toxic and is virtually odorless, making it a great option for individuals who don’t have a large and well-ventilated workspace. Furniture manufacturers use lacquer on mass-production assembly lines for a reason. A single layer of wipe on poly is very thin, compared to poly you brush on. In short; you CAN apply a lacquer or a polyurethane over a Danish oil. When it dries on a surface, it is extremely durable. THE RULE OF THUMB IS WAX OVER POLY POLY FIRST – WAX SECOND. Exterior projects are better to use with lacquer because it is absorbed into the wood and is less susceptible to this type of damage. Let it cure. Look more into our favorite wipe-on polyurethane here. Lacquer over wipe on polyurethane. What type of finish should you look at using on items like your flooring, tabletops, banisters, or cabinets? You can choose from polyurethane, lacquer, shellac, or even varnish. Your banisters may not see the same kind of wear and tear as your floors, but they do still get a lot of traffic every day. Whether it'll work well in this specific case nobody can say, you'll have to try it and see. While this can be a pain, it is a great way to make use of the durable finish that polyurethane provides without damaging the table. When it comes to your next project, you should be well educated on what type of finish is best suited to your overall goals. 1. Im willing to just do a colortone clear gloss spray lacger finish but i already have the wipe on. I would grab a rag & some lacquer thinner, wipe it all off & start over… However, you could use polyurethane but would need to take extra precautions to protect it. But following the basic prep guidelines it'll usually work fine. Both lacquer and polyurethane are durable options, but they can play different roles in your finishing process. Just as you can over any Drying Oil. You might consider a vinyl sealer to act as a "barrier coat" before the lacquer. Because they are located inside where there should not be many temperature fluctuations, you should consider using polyurethane on a low to mid-level gloss. To make a wiping varnish, thin any oil-based varnish or polyurethane with mineral spirits (paint thinner) until you reach a thinness that’s easy to wipe on. Four to six coats create a thick film finish. Type above and press Enter to search. I've blistered the hell out of pieces trying that, ide try it on scrap first. Looking to get a high gloss finish. I'm simply trying to learn if polyurethane can be lacquered over with no adhesion problems. But following the basic prep guidelines it'll usually work fine. Also, don’t use brushing lacquer. However, you may find that water-based polyurethane is the more durable option between the two products. This is because the wood constantly moves when exposed to water or humidity, and it can damage the finish of the project. Unlike the others, it has no amber hue. Avoid using lacquer retarder, even if this means waiting for drier or cooler weather. Oil-based polyurethane is a bit different than its water-based counterpart. Lacquer dissolves it's undercoat to bind the old and new. The trick is to use thin coats and invert the fingerboard after applying a coat. Appropriate for mill work, furniture, cabinets, garage doors, windows, decks, and more. They lack the necessary tools to complete the job properly and do not want to make the one-time investment into a high-volume, low-pressure sprayer. Two or three coats of wipe on poly should seal the wood. Redoing my heresys, lacquer or polyurethane? Understanding the differences between lacquer vs. polyurethane durability can help you to make a wise choice when it comes to finishing your latest project. For a perfect finish use sandpaper between polyurethane coats. Essentially a plastic in the form of a liquid until it dries, polyurethane is available in … The reality is that polyurethane does not hold up well when it comes to fluctuating temperatures. It is best for indoor furniture items like bookcases, desks, or side tables. It isn't as simple as just wiping on the Minwax product over the existing varnish. Expect to see a glossy finish that penetrates the wood surface, making it highly durable. The price on each product really depends on the quality, name brand, and quantity that you purchase. Wipe-On (also called oil-based) polyurethane blends the best of both worlds of finishing: the high durability and protection of polyurethane with the simple wipe on application of an oil finish. Inspect the towel once finished. Use a 400-grit sandpaper to rough up the surface of the lacquer. Protection from both of these items is paramount when you consider your tabletop because you will always be setting drinks or hot dishes on the table. This finish is essentially just a form of liquefied plastic until it dries on your furniture, floor, or other high wear areas like tabletops, banisters, and cabinets. The other general class of oils are Non Drying Oils. Save my name, email, and website in this browser for the next time I comment. then I'll thin 50/50 poly with mineral spirits, and wipe-on 3 more coats which dry faster, easier to apply, and are more even, however that's after I already have a heavy base to go off of. It has an evaporative property that is unique among the other types of lacquers. Water-based polyurethane is able to be used for finishing hardwood floors. Unlike water-based polyurethanes, you don't have to worry about drips or brush marks. If you are going to be coating exterior wood surfaces that won’t be exposed to extreme heat fluctuations, then polyurethane … However, this is not the only reason why lacquer is a clear choice. Whether it'll work well in this specific case nobody can say, you'll have to try it and see. Shellac is thinned with alcohol, which rarely causes blistering or wrinkling. Apply a barrier coat of shellac between the existing surface and the coating containing lacquer … It is absorbed into the surface of the wood, forming a stronger bond that is more difficult to disrupt. I've decided I would like a bit more protective of a finish. Experts say that polyurethane is the better deal, especially for beginners who may not have had much practice with finishing wood surfaces. Lacquer generally lasts a long time. It is highly susceptible to peeling and cracking when left in the great outdoors with fluctuating temperatures and exposure to the elements. I get what you're saying but I'm not asking about pore filling. Of course you need to test in a inconspicuous place to be sure. The same is true for your kitchen cabinets. It will be an adhesion problem. This type of finish was originally used to finish cars but has since been adapted for use on furniture and other projects. If you are talking about spraying lacquer over the polyurethane and the poly is well aged, you might be able to get away with it by spraying light well-thinned coats of the lacquer.The safest thing to do is to use dewaxed shellac over the poly and then you can go to the lacquer without worry. Poly over lacquer is ok, lacquer over poly won’t work because the thinners are to hot and they will melt the poly. There is a little longer dry time between coats of brush-on poly (4-6 hours), but it’s pretty much a wash when you consider how many more coats of wipe-on poly would be necessary for the same amount of protection. That should let you know the origin of the streaking. NEVER the other way around. Roughing it up this way will allow the varnish to hold better. Press Esc to cancel. Most often, oil-based polyurethane adds a golden color to the finished product. Satin latex paint can also accept a coat of water-based polyurethane. Joined: … My suggestion is to spray it with lacquer sanding sealer to lock in the stain, then sand it and then begin putting on the poly. The Angry Possum Tele-Holic. Poly finish is made up of one coat over the next. But with the exception of Minwax’s Wipe-On Poly, the labels aren’t helpful. Wipe on poly needs to be applied with the frets out, but you want to avoid letting the poly run into the fret slots. This tough finish also polishes to a high shine and repairs easily. If you want to put multiple coats or you simply want to move the furniture as quickly as possible, lacquer is an excellent option because it dries quickly. Because many of the high wear areas are located inside your home, you may want to consider the more durable polyurethane finish. They take a quick trip to the home improvement store and leave wondering whether they should use lacquer vs. polyurethane. This should make sense, because once dried, the oil has cured to a hard solid film surface, and stuff will now stick to it. Unless you plan to do quite a few projects with this type of finish, it is likely too costly to consider applying lacquer instead of polyurethane. This helps to give your home a sense of continuity so that the floors, stairs, and banister all match one another. There is a problem with putting lacquer over poly. This is not the end of the world, though. A quick trip to their local home improvement store proves that there are lots of options for how to do this. This is a curing finish, which means it undergoes a chemical reaction as it dries. 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