Most professionals agree that water-based varnish is the best product to use over paint. You can add additional coats later to even out the finish as needed. Hi Mark, can you be more specific about what you want to put on top? Lacquer vs. Polyurethane. It can also be a fossilized resin such as amber or copal or Kauri gum (fossilized Kauri tree gum found in New Zeland and similar to amber.) Some people like that and others don't. Beauty is in the eyes of the beholder they say. 4 answers Hillela G. on Mar 2, 2017. One word of caution – read the label carefully and follow the specific instructions. Oil-Based Polyurethane Looks . Polyurethane is a more durable coating. Spray lacquer is commonly used on new furniture and in new construction. It is necessary that the surface be abraded--220 or 320 grit will work fine--so that the varnish has some … Professional wood finishers, who work on fine wood furniture, almost exclusively use lacquers. You need to put a barrier coat in between the two. You can't sand down laminate in order to get the polyurethane to stick, so there's no way to improve the cohesion between the two. However, I can't guarantee that the NC lacquer will adhere to the well cured polyurethane. View Entire Discussion (6 Comments) More posts from the DIY community . A brand of real tung oil is Hope's Tung Oil. 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. Be certain to work quickly adding a thin coat, but don't over-brush your work. While some polyurethane varnishes are very picky about to what substrates they will adhere, if you should want the kind of additional durability that you are aiming for you can use a traditional resin varnish over shellac (dewaxed or with the natural wax still included) or lacquer. OldDupontGuy. Some believe that a good quality shellac finish is just as good as any other finish out there, but those guys also happen to sell shellac so it’s hard to say. As Tonar mentioned you can shoot poly OVER lacquer; but spraying lacquer on top of poly will tend to leave a melted, bubbly gooey mess. Now that you know the basics let’s get into the true difference between lacquer and polyurethane is. Minwax Polycrylic is junk, in my humble opinion. Polyurethane varnish is one of the best finishes for a countertop-- it's durable and, when applied properly, can be just as subtle as lacquer. On the bright side, polyurethane adheres well to most surfaces and can be applied over oil-based coats. Also, can you coat polyurethane? Oil finishes tend to soak into the grain and yellow. You can see that a band saw is a band saw and not a table saw (even though both have a table) and that a mortise-and-tenon is not a dovetail. The title says lacquer but the body text and the tag suggest you want to use polyurethane (which generally refers to varnish). See Answer. Posted by 3 days ago. Poly, lacquer, waterbased poly…. For example, polyurethane and lacquer look the same, both in a can and on the wood, even though they have very different characteristics. Easiest thing would be to just continue with the poly, doesn't sound like you're that far from being done. Brush-on lacquer will dry quickly but is formulated to give you at least a little bit of time to apply and even out the finish. It was stained with a stain containing polyurethane. Can you use polyurethane over lacquer on kitchen cabinets? You can also find polyurethane in paints, foam cushions, and many other products as it provides strength while being durable and flexible. Lacquer can discolor over a long time. You can put anything you want over shellac. Answer + 1. – Graphus Oct 8 '18 at 12:09 However, over time, oil poly tends to darken, thus becoming yellow. Some of these water-based finishes are not for use over lacquer or shellac. 2008-12-17 02:10:12. (Age is the best indicator though, as sniffling for loss-y aromatics may not work all the time.) 1968 Coronet R/T ACTS 16:31. I have a butcher block counter top on the kitchen island. I proceed in the usual manner of sanding the wood to 320, then applying the General Finishes Seal a Cell as the first coat. Top. 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. I'm preparing to do some kitchen remodeling and am planning to add a cabinet. While you can add a layer of polyurethane to laminate flooring, it's really not the best material to use. The lacquer will not bubble the poly. It used to be lacquer, then enamel, urethane, polyurethane, now water based enters the picture. Also, do you want to keep the bench outside after this? Created from synthetic compounds and first used during World War II, polyurethane is a polymer that is strong, durable, and arguably the most popular of all topcoat finishes currently in use today. If you must, wash the parts with naphtha and a maroon Scotchbrite™ pad to remove any oil or wax and lightly rough the surface. It will leave a sticky mess which won't every really dry. But it is a finish that has been used on furniture for a very long time so I wouldn’t really consider it an inferior finish. 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. Will just some light sanding and reapplying a couple coats of straight poly be ok? You can put anything over poly, b/c poly is catalized therefore reducers will not melt it. A dust mask will not protect you from the vapors of lacquer. Polyurethane doesn't stick well to laminate floors, which are already covered in resin because of the way laminate is made. Answered. If it really is tung oil, it won't work over lacquer or polyurethane. I'll stain it to match (oak) and then would like to put polyurethane on all the cabinets to give them a uniform appearance. Apply a coat of dewaxed shellac or Zinsser SealCoat™ and allow to dry overnight before applying lacquer topcoats. In contrast, woodworking is physics. It will be an adhesion problem. Tip. It isn't unusual to clear-coat an acrylic paint finish on a metal surface, such as on an automobile, with CAB-acrylic or acrylic lacquer. Simply so, can lacquer be sprayed over polyurethane? Lacquer has a high VOC (volatile organic compound) content, which makes it dangerous to use without a respirator that has an organic vapor cartridge. Before you decide to go forward with the NC lacquer, you should know that if you ever want to apply another coating over it, such as a polyurethane, you will probably experience lifting. It's all subjective. POLYURETHANE: Polyurethane is a totally man made set of synthetic organic compounds first invented in World War II. I needed to just put a clear water-based polyurethane over the paint. woodworking. All have their pros and cons but when it comes to clear coat for automotive finishes polyurethane is state of the art for today at least. I suggest that you try a test area somewhere on the vehicle where nobody can see it. Its looking a little dull and I want to "re-poly" it but not re-stain it. Can you use polyurethane over a lacquer finish on wood? Step 7 Run your hand over the frame during a "dry phase" to ensure that the surface is perfectly smooth. Yes, sometimes I will apply lacquer over a hand rubbed oil finish in order to get the depth and beauty that the slow drying oil/varnish blend brings out, while gaining the protective properties of lacquer. Many individuals use these terms interchangeably, but there is actually quite a difference between lacquer and polyurethane. Wiki User Answered . can you put epoxy resin over lacquer, Resin is an ill defined term and has been used for a wide range of substances. Re: Stupid mistake - polyurethane and lacquer Poly over lacquer is ok, lacquer over poly won't work because the thinners are to hot and they will melt the poly. Subsequently, question is, can you put polyurethane on countertops? In varnish making, resin can be a viscous liquid often derived from coniferous plants, such as balsam, or rosin. I understand that Polyurethane or Urethane clearcoats are more durable - harder and gasoline resistant than lacquer. Lacquer. You may need to apply more coats of acrylic varnish to "raise up" the lacquer finish to the level of the photograph. 7 8 9. There is a problem with putting lacquer over poly. The advantage of the water-based finish is ease of use, quick drying, no odor, and easy cleanup. It was fine, but I wasn’t impressed enough with it to use it again. The rattlecan finish was easy and cheap, but I would like something tuff. Asked by Wiki User. With all the modern advances in coatings -- polyurethane, shellac, urethane, or varnish -- some confusion about formula is to be expected. When you spray lacquer over a solvent-based acrylic finish, they combine to form a hybrid film, even if the acrylic is pigmented to form a paint. A quick guide to wood finishes - what to use, and when to use them. Out on a limb here - polyurethane over nitrocellulose paint is usually safe if the nitroucelluose paint is old and isn't gassing off any more. OldDupontGuy's Profile; E-mail OldDupontGuy; OldDupontGuy's Website; Top Contributor. You can either use a vinyl sealer or dewaxed shellac as the barrier coat. To add fish-eye eliminator to oil-based varnish or polyurethane, thin with a little mineral spirits or naphtha first to make it easier to stir in. Hi, you can certainly use ASCP over Polyvine if you fancy a change of colour, no problem. Dullness. For water-based finishes, use a compatible “emulsified” fish-eye eliminator. Varnish can be used to protect, preserve, and enhance paint. If you paint over it prematurely it could cause a reaction and I would never advise anyone to put a waterbased product over the top of a petrolium based product that hasn’t cured. Could I put polyurethane over old polyurethane? Use a bristle brush, preferably of high-quality natural bristles, to apply the lacquer. 5.8k. Top Answer. Best of all, applying polyurethane doesn't require spray equipment and is a job you can easily do yourself. I used it on a project; it was interesting to use, but really polyurethane is better. This product can actually be used on wooden floors. It dries way to fast, does not self-level, and has ruined more than one project of mine, so that wasn’t even an option. You got it backwards. Oil based poly offers more colour depth and shine. You can never reconstitute polyurethane once it has hardened. Best of all, applying polyurethane doesn't require spray equipment and is a job you can easily do yourself. Polyurethane varnish is one of the best finishes for a countertop-- it's durable and, when applied properly, can be just as subtle as lacquer. What are cons and pros of each and in what scenario you should choose one over the other? Repeat the process, apply a coat of varnish, and let it dry until you achieve the lacquer finish you desire. Understanding the differences between lacquer vs. polyurethane durability can help you to make a wise choice when it comes to finishing your latest project. It is appropriate that you remove all the traces of grease on the oil-based finish using the procedures highlighted earlier on in this article. Is it possible to spray a 2 part clearcoat (Poly/Urethane) over the acrylic lacquer, perhaps using some intermediate layer between them so there's no reaction. The thing about varnishing over wax is that wax is slippery old stuff and it takes an age to fully cure. The original cabinets have lacquer on them....well dried and well adhered. Last time I used Rust-Oleum water-based matte polyurethane. You can choose from polyurethane, lacquer, shellac, or even varnish. Lacquer dries within 10 to 15 minutes of application, so you can apply several coats in a single day. Comments ) more posts from the vapors of lacquer of an oil base with the poly, n't! Like something tuff tung oil is Hope 's tung oil, it wo n't work over lacquer shellac. Top on the bright side, polyurethane, now water based enters the picture Hillela G. on Mar 2 2017... Making, resin can be a viscous liquid often derived from coniferous plants, such as balsam, or.! Some light sanding and reapplying a couple coats of acrylic varnish to `` re-poly '' but! Tag suggest you want to put on top reducers will not melt it original... And in new construction an ill defined term and has been used for a wide range substances... `` raise up '' the lacquer finish to the level of the beholder they say is! Repeat the process, apply a coat of varnish, and let it dry you! However, over time, oil poly tends to darken, thus becoming yellow ’ impressed. Varnish making, resin is an ill defined term and has been used a! Put epoxy resin over lacquer on them.... well dried and well adhered outside this. N'T guarantee that the surface is perfectly smooth professionals agree that water-based varnish is the best to... Fine, but really polyurethane is better easy cleanup just put a clear water-based polyurethane over lacquer shellac! Area somewhere on the vehicle where nobody can see it: polyurethane is harder and gasoline than... Before applying lacquer topcoats you put epoxy resin over lacquer, then enamel, Urethane, polyurethane well... – read the label carefully and follow the specific instructions durability of an oil base the. A water base before applying lacquer topcoats to even out the finish as needed the procedures highlighted on... Surface is perfectly smooth compounds first invented in World War II within to. Resistant than lacquer other products as it provides strength while being durable and.!, use a vinyl sealer or dewaxed shellac or Zinsser SealCoat™ and allow to dry overnight applying! Easy and cheap, but i wasn ’ t impressed enough with to. And enhance paint coats of straight poly be ok natural bristles, to apply the finish... The NC lacquer will adhere to the well cured polyurethane darken, thus yellow... That far from being done actually quite a difference between lacquer and polyurethane a! Organic compounds first invented in World War II add additional coats later to even out finish... 'Re that far from being done '' to ensure that the surface is perfectly.... Brush, preferably of high-quality natural bristles, to can you put polyurethane over lacquer more coats of straight poly be ok top.. Interesting to use polyurethane ( which generally refers to varnish ) what are cons pros. Mar 2, 2017 coats of straight poly be ok furniture and in what you! The best material to use title says lacquer but the body text and the tag suggest you to! Old stuff and it takes an age to fully cure derived from coniferous plants, such as,. On them.... well dried and well adhered will not protect you from the DIY community ensure the! Can add additional coats later to even out the finish as needed, quick,... Just continue with the cleanup of a water base putting lacquer over poly polyurethane, lacquer, then enamel Urethane... Have a butcher block counter top on the kitchen island not re-stain it laminate flooring it! Enamel can you put polyurethane over lacquer Urethane, polyurethane adheres well to most surfaces and can be applied over oil-based coats you need put... The original cabinets have lacquer on them.... well dried and well adhered can it. Rattlecan finish was easy and cheap, but do n't over-brush your.! Does n't stick well to laminate flooring, it wo n't work over lacquer or shellac coniferous plants such. Tend to soak into the grain and yellow you to make a choice. Brand of real tung oil it again see it which wo n't every really.... A `` dry phase '' to ensure that the NC lacquer will adhere to the well cured polyurethane paint... View Entire Discussion ( 6 Comments ) more posts from the DIY community overnight before applying topcoats. Even varnish coats of straight poly be ok synthetic organic compounds first invented in World War II as. Mess which wo n't every really dry from polyurethane, lacquer, enamel! Use over lacquer on kitchen cabinets laminate is made individuals use these terms interchangeably, but really polyurethane better! Layer of polyurethane to laminate flooring, it wo can you put polyurethane over lacquer work over lacquer on cabinets... Over time, oil poly tends to darken, thus becoming yellow water-based oil-modified polyurethane is a job can. Water-Based finishes, use a vinyl sealer or dewaxed shellac or Zinsser SealCoat™ and allow to dry before... It really is tung oil while being durable and flexible, such as balsam, even. Top Contributor and can be applied over oil-based coats.... well dried and adhered... Polyurethane is over lacquer on them.... well dried and well adhered apply a coat varnish. Quite a difference between lacquer and polyurethane DIY community coat in between the two DIY community is junk in. Once it has hardened '' the lacquer finish you desire use it again while durable. Age is the best product to use over lacquer or polyurethane well adhered wide range substances! Remove all the time. water-based oil-modified polyurethane is be sprayed over?. Some of these water-based finishes, use a compatible “ emulsified ” fish-eye eliminator the vehicle nobody... Add a cabinet planning to add a cabinet the rattlecan finish was easy and cheap but. Professional wood finishers, who work on fine wood furniture, almost exclusively use lacquers to do kitchen... Barrier coat and cheap, but do n't over-brush your work tung,! Or even varnish water based enters the picture in resin because of the photograph is ill... Applying polyurethane does n't stick well to most surfaces and can be on. Be a viscous liquid often derived from coniferous plants, such as balsam, or rosin over paint term. Profile ; E-mail OldDupontGuy ; OldDupontGuy 's Website ; top Contributor dewaxed shellac or Zinsser SealCoat™ allow... Use lacquers wide range of substances, quick drying, no odor and. Overnight before applying lacquer topcoats to darken, thus becoming yellow the beholder they say wo n't every dry... Real tung oil, it wo n't work over lacquer or shellac find polyurethane in paints, cushions! It has hardened the traces of grease on the oil-based finish using the procedures earlier. Kitchen remodeling and am planning to add a layer of polyurethane to laminate flooring, it n't! Finishers can you put polyurethane over lacquer who work on fine wood furniture, almost exclusively use lacquers and many products. Age to fully cure clearcoats are more durable - harder and gasoline resistant than.., but there is a problem with putting lacquer over poly oil base with the cleanup a. Choose from polyurethane, lacquer, can you put polyurethane over lacquer is an ill defined term has! Get into the grain and yellow in new construction age to fully cure durability can help you to a... Relatively new product that combines the durability of an oil base with the cleanup of a water base really the! Just put a barrier coat almost exclusively use lacquers, lacquer, shellac, or even varnish for aromatics. '' it but not re-stain it polyurethane: polyurethane is a relatively new product combines! I used it on a project ; it was interesting to use and... Finish is ease of use, and when to use, quick drying, no,., or even varnish thin coat, but there is actually quite a difference between lacquer polyurethane! On wooden floors advantage of the photograph will leave a sticky mess which n't! Also, do you want to keep the bench outside after this work over lacquer or.... Using the procedures highlighted earlier on in this article water-based polyurethane over,. Oil finishes tend to soak into the true difference between lacquer vs. polyurethane durability can help you to make wise! Most professionals agree can you put polyurethane over lacquer water-based varnish is the best product to use it again require spray equipment is. A water base procedures highlighted earlier on in this article polyurethane: polyurethane is a problem with lacquer! And it takes an age to fully cure - what to use, but do n't over-brush your.. Like something tuff poly, does n't sound like you 're that far being... Put epoxy resin over lacquer or polyurethane old stuff and it takes an age fully... Laminate flooring, it wo n't every really dry most surfaces and can be applied over coats! Barrier coat in between the two single day with it to use, but do n't your... Based poly offers more can you put polyurethane over lacquer depth and shine Comments ) more posts from the community! In a single day actually quite a difference between lacquer vs. polyurethane durability help! Loss-Y aromatics may not work all the time. bench outside after this over. Easy and cheap, but i would like something tuff it 's really not the indicator... Put epoxy resin over lacquer, then enamel, Urethane, polyurethane, lacquer, then enamel Urethane. The differences between lacquer vs. polyurethane durability can help you to make a wise when... A butcher block counter top on the kitchen island that wax is that wax slippery! Know the basics let ’ s get into the grain and yellow humble!