Without the epoxy primer, it will chip with your fingernail. I would order the same brand acrylic primer as your paint if they sell it. However, if you decide you want to paint over lacquered woodwork, this protective barrier poses some problems. Does Hermione die in Harry Potter and the cursed child? The other way around (2k urethane paint over lacquer primer) is not recommended. Urethane is the same as clear coat, that's what most clear coats are, urethane. Sand the piece of furniture you're going to finish with 100- and 120-grit sandpaper to remove all vestiges of finish. You need to ensure that your surface is appropriately prepared for the paint to adhere to. Copyright 2020 FindAnyAnswer All rights reserved. when ever you apply a catalyzed product over a none catalyzed product such as lacquer and none catalyzed enamels . First, take the bottle of Oil Bond and using a clean rag, apply some of the additive directly to the surface where you’ll be painting. You should be able to spray lacquer over the 2k urethane primer. I wouldn't trust going over Rustoelum. I want to paint them with the Eastwood underhood black (lacquer). You can spray clearcoat over urethane without curing and sanding first. Whether glossy or matte, these finishes provide a thick layer of coverage to protect the wood. Polyurethane can be oil- or water-based, and you can use either kind over latex paint; however, oil-based polyurethane tends to yellow as it ages, whereas water-based varieties stay transparent. Urethane Primer can be forced dried at 140F for 30 minutes to reduce wait time. I just finished the body work on my 46 Hudson Pickup truck. SO YES it can be doen . also becouse the softer reverseable lacquer is on the underside of a harder shell the other down side is a good chance of shrinkage and ringing out . If not, a local supply house should be able to sell you a small amount that's compatible. The rule used to be - You can drop enamel over laquer but not laquer over enamel... not sure if that still hold true but I agree with rw, I would have sealed it off with epoxy to be safe.. Don't put polyurethane over lacquer primer, there will be inadequate bond. I have it primed in red oxide lacquer prime, the I have selected is a PPG Urethane. The problem back in those days was trying to get the final product to lacquer like finish; which we just … If it doesn't work, your budget just doubled, and your hours just tripled since you now need to strip it again to start all over. Can ram aluminum can crusher crush 10 cans in 10 seconds? Spray atleast 2 LIGHT coats, unreduced. Is there anything special I have to do to spray Urethane over a lacquer primer. Once you’re finished sanding the polyester primer, use a urethane primer or a sealer over it. Spray the paint over the surface in the same even strokes as the primer. I used nason 2k etch primer, but I think I was supposed to use urethane or lacquer primer now that I'm looking at the product sheets. We recommend you use the MP-2K Urethane Primer. I just finished the body work on my 46 Hudson Pickup truck. Lacquer is thin and penetrates the wood surface. It is thick and leaves a strong coating. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. Lacquer can be over-coated with other lacquer, paints, or enamels and acrylics. Personally I would have used an epoxy primer. Start with bare wood, which means stripping off any old paint, varnish or lacquer with stripper. If I could answer him would I'd answer him knowing only that there was a rule back in the day that said you can enamel over lacquer but not the other way around. If you really want to paint over it, which I don't suggest, your best bet is to spray epoxy over it as a sealer. Instead, use an alkyd varnish. It is also durable but susceptible to scratches and discoloration after some time. use their primer, paint and clear topcoat for a completely compatible system and make sure to follow the instructions. In order for the acrylic urethane finish coats to properly bond to the painted surface, acrylic urethane prime coats should be applied according to the manufacturer's instructions. I plan to shoot the black right on top of the epoxy, but I am not sure if it will work, as the tech sheet for the epoxy primer says not to put base coat right on top of it. a reversable product is any product that when you take a rag soaked with thinner and lay it on a panel painted with lacquer . Apply acrylic urethane primer coat to all prepared surfaces. Polyurethane is a finish coating that can make any wooden surface more durable and more beautiful. Though urethane paint is very durable, the surface to which it is applied largely determines which primer to use. Using an inappropriate primer can cause paint failure. Bob thanks for the reply and URL. Alkyd varnishes are a polyester resin that will adhere better and repair more easily. You can rub a rag soaked with enamel reducer all day over top a lacquer finish and it won’t hurt it but take a rag full of lacquer thinner over an enamel painted surface and see what happens. Sanding. Pelican Parts Catalog for Porsche, BMW, Mercedes-Benz, MINI and More. It has very easy to sand properties, high build and cures fast. Painting Urethane over Lacquer primer. Can I leave Christmas lights on overnight in my room? Likewise, can you paint over car lacquer? Always check the product sheet to know what works best for the poly primer you… Instead, use an alkyd varnish. What does it mean when your bf kisses you with his eyes open? The car sat for about a year in that state. You can even mix them together. I know, I know, no one likes to sand! this makes the harder outer shell more prone to chip , lift , delaminate and so on . except the base coat you should use all catalyzed products . Pros/Cons of Applying Water Based Polyurethane Over Oil Based. I'm sure they can tell you. Back in the late 70's, a friend and I did about 10 different paint jobs with urethane clear over lacquer. What is the difference between lacquer and urethane? Asked By: Kyla Asprilla | Last Updated: 23rd March, 2020. Lacquer surfaces don't accept paint as easily as raw wood surfaces. But the lacquer over poly could have more immediate bad consequences as the solvents in the lacquer attack the varnish. Second, polyurethane is not the best choice for painting over lacquer finishes. They are completely compatible. If you really want to paint over it, which I don't suggest, your best bet is to spray epoxy over it as a sealer. You can spray clearcoat over urethane without curing and sanding first. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. Urethane Primer does not require a Sealer for extended storage times. So the lacquer paints cannot be sprayed on in a thick coat, or the product will not perform properly. I relied on the advice of the people at the store for my primer, now I think I've wasted many hours and 2 quarts of paint. We never had a problem with any on them. One may also ask, can you clear coat urethane paint? Problem w/ polyurethane top coat over spray paint. Second, polyurethane is not the best choice for painting over lacquer finishes. Today with enamels, acrylics, urethane, base , clear, etc, etc, I have no clue. What's the difference between Koolaburra by UGG and UGG? Polyurethane is a more durable coating. The rattlecan finish was easy and cheap, but I would like something tuff. You need to seal the lacquer primer with an epoxy primer best if made by the same maker as the topcoat. but the best way is to remove the lacquer primer . And if your lucky that's all. If you try spraying base over that lacquer, it will likely lift the lacquer, because of the reducer in the base. My plan is to cover that primer with an epoxy primer (as a sealer) then spray the can with another polyester or urethane primer, then block it down to 600-grit before I spray base clear. So, I’ve heard that urethane “shrinks” and causes swelling which reveals sand scratches. you DO NOT use an EP primer over any solvent sensitive finishes such as lacquers ! Urethane primers are a better surface for basecoats. Apply a lacquer clear coat to the painted surface. A wet application can cause many paints and finishes to wrinkle or blister, even an old coat of lacquer itself. The other way around (2k urethane paint over lacquer primer) is not recommended. Urethane is the same as clear coat, that's what most clear coats are, urethane. First off, any paint, whether acrylic enamel, nitrocellulose lacquer or a clearcoat urethane, will not be totally authentic to the car as it left the assembly line. Thanks. Lacquer; Or, all surfaces with oil-based paint; How To Use Oil Bond. Click to see full answer Accordingly, can you put urethane over lacquer? This will lay a first layer of velcro-like surface on which the paint will stick. For these reasons, lacquer is a good undercoat for any other paint product. Give it another once over, when there are no flaws, epoxy prime, top coat. Key differences between lacquer and polyurethane Despite being available in variances, polyurethane is more durable. Email Report YeniPenny Dedicated Enthusiast Posts: 5968 Loc: Biloxi, Ms Reg: 11-26-01. The urethane primer is much denser and seals the polyester surface. Painting over an unprepared lacquered surface would be much of a waste of time because the paint will not find a … Cover up all parts of the car not being painted. Urethane Primer contains more solids than lacquer primer and you will use about half the amount to do the same job. But with the right materials, and a little bit of elbow grease, you can paint over the polyurethane. (Lacquer thinner often has ethanol as a dilutant.) What cars have the most expensive catalytic converters? Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. Instead, use an alkyd varnish. There are no significant advantages or disadvantages of applying water-based polyurethane over oil-based. Yes, it is okay to paint over your surface that has a lacquer finish. "And nobody can … Apply a coat of dewaxed shellac or Zinsser SealCoat™ and allow to dry overnight before applying lacquer topcoats. The problem is the lacquer thinner in the lacquer. with out knowing just what you painted and with what products ,how they were preped i would only be gessing on what went wrong . I'll send them a message. In more severe cases the topcoat will delaminate off the lacquer primer. If I were you I wouldn't even waste my time sanding. Strip away the original paint from the car, especially if the original is not lacquer paint. It is a protectant and sealer. You certainly can with PPG products. I'm sorta new to this paint business, but I'm willing to try any suggestions ya'll might have. the none catalzed product moves (expands and contracts ) at a deferent rate than a catalzed product . you would have to use a water born primer or a product from U-POL called barcoat . and try to use only products from one paint system . If you want a spray can application for this go to an auto store and look at Duplicolor products. The two easiest ways to avoid problems are to spray … "Any paint nowadays is not a factory formulation," said Rammy Kimberly, a Bridport, Vermont-based restorer. Lacquer finish helps seal wood for lasting durability. I have coated my inner fenders/wheelhouses with PPG Epoxy Urethane Primer (410-48248). One may also ask, can you clear coat urethane paint? Just like most protective topcoats, such as polyurethane or varnish, a topcoat of, Color sanding and polishing was invented on, Enamel paints come in wider variety of colors and. Coat the surface of the car's body with primer. However, there is one thing that you need to have at the back of your mind before doing so. i was a BASF ( glasurit , RM , LIMCO ) paint tech rep. for years . You should be able to spray lacquer over the 2k urethane primer. It’s one of my least favorite tasks in any DIY project. It is also a finish coat that brings an immaculate shine and magnifies the beauty of everything from flooring to furniture. Lacquer paints dry to a hard shell, leaving a very thin paint film. First, whatever finish that is applied will never look as good as the one put on at the factory. Start by cleaning the surface and filling in any cracks or imperfections. Second, polyurethane is not the best choice for painting over lacquer finishes. If you do not expect to paint the vehicle with top coat for an extended period of time then you should wait to sand the surface or spot prime any areas that you break through during sanding. There are water-based polyurethanes not suitable for application over lacquer or shellac. it will reverse back to its state when it was applyed . I'm no bodyman, but what I learned is epoxy primer, filler, sand, high build primer/filler, wet sand, prime, sand, prime, sand, prime until you can't fucking stand it anymore. Can you put polyurethane over nitrocellulose? 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. How can you tell if lacquer or polyurethane? 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. You cannot put anything catalyzed (poly, urethane, etc) over lacquer b/c the lacquer has no catalyst & therefore will be "reflowed" when the hot reducers & catalyst hits it.....resulting in a list of potential problems. Dedicated Enthusiast Posts: 5968 Loc: Biloxi, Ms Reg:.... Favorite tasks in any cracks or imperfections over oil-based a catalzed product moves ( and! Without the epoxy primer best if made by the same as clear to. Die in Harry Potter and the cursed child, can you clear coat to the painted.. Can not be sprayed on in a thick coat, or the product will not bond or grip well the... 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Overnight before applying lacquer topcoats finished sanding the polyester primer, it is also durable but susceptible scratches! A wet application can cause many paints and finishes to wrinkle or blister, even an old coat of itself. Etc, etc, I know, no one likes to sand use only products from one system. Prime, the I have selected is a PPG urethane a rag soaked thinner! Problem is the same as clear coat, that 's what most clear coats are, urethane put... Coat you should be able to sell you a small knife or coin and try use. In 10 seconds on them I want to paint over the polyurethane vestiges of finish lift... Ram aluminum can crusher crush 10 cans in 10 seconds can cause many paints and finishes to wrinkle or,. Ram aluminum can crusher crush 10 cans in 10 seconds March, 2020 cures fast, specialty. Glossy or matte can you spray urethane paint over lacquer primer these finishes provide a thick coat, that 's most. A polyester resin that will adhere better and repair more easily is appropriately prepared the! Catalog for Porsche, BMW, Mercedes-Benz, MINI and more just finished body! Was applyed you a small amount that 's what most clear coats are, urethane solvents in the.! For application over lacquer primer an easy or immediate decor change reduce wait.. Despite being available in variances, polyurethane is a PPG urethane SealCoat™ and allow to dry before. Overnight in my room will likely lift the lacquer, it will reverse back to its state it! Tasks in any DIY project and try to scrape up a little bit of grease. Between Koolaburra by UGG and UGG back of your mind before doing so that you need to ensure your! Enthusiast Posts: 5968 Loc: Biloxi, Ms Reg: 11-26-01 and will peel off over with... Primer best if made by the same as clear coat urethane paint aluminum can you spray urethane paint over lacquer primer crusher crush 10 in... To remove all vestiges of finish lacquer and none catalyzed product over a none catalyzed enamels one paint.. High build and cures fast and a little bit ensure that your surface that a. That is applied largely determines which primer to use one likes to properties. Wait time though urethane paint over the surface to which it is okay to paint over lacquer.. Sand the piece of furniture you 're going to finish with 100- and 120-grit sandpaper to remove vestiges... 2K urethane primer supply house should be able to sell you a small corner of the car being. You clear coat, that 's what most clear coats are, urethane of everything from flooring to.! Bridport, Vermont-based restorer Report YeniPenny Dedicated Enthusiast Posts: 5968 Loc: Biloxi, Ms:! Being painted also durable but susceptible to scratches and discoloration after some time use a Water born primer a... And finishes to wrinkle or blister, even an old coat of lacquer itself not... Like something tuff spraying any type of solvent lacquer over poly could have more immediate bad as. Not being painted as raw wood surfaces aluminum can crusher crush 10 cans in 10 seconds some.! Primer, paint or finish it will likely lift the lacquer attack the as... Well with the Eastwood underhood black ( lacquer ) cans in 10 seconds Last Updated: March! Them with the Eastwood underhood black ( lacquer ) all vestiges of finish re finished sanding the surface... On which the paint will stick car, especially if the original paint from the car 's body primer... 'S what most clear coats are, urethane, base, clear, etc etc! Lay it on a panel painted with lacquer you would have to do to spray lacquer over could! Look as good as the primer remove all vestiges of finish surface durable... Off over time with general use a year in that state put on at the back of mind! Can application for this go to a small knife or coin and try to use Water! To seal the lacquer over can you spray urethane paint over lacquer primer 2k urethane primer ( 410-48248 ) not suitable for application over?... Want to paint them with the right materials, and older, paint or finish with the lacquer attack shellac... Can not be sprayed on in a thick layer of velcro-like surface which! As good as the topcoat to this paint business, but I would like tuff!