If not, a local supply house should be able to sell you a small amount that's compatible. However, for specialty applications like marine or automotive, there are additional considerations. Cover up all parts of the car not being painted. Lacquer; Or, all surfaces with oil-based paint; How To Use Oil Bond. Is there anything special I have to do to spray Urethane over a lacquer primer. I want to paint them with the Eastwood underhood black (lacquer). Pros/Cons of Applying Water Based Polyurethane Over Oil Based. Can ram aluminum can crusher crush 10 cans in 10 seconds? Apply a lacquer clear coat to the painted surface. 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. i was a BASF ( glasurit , RM , LIMCO ) paint tech rep. for years . 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. 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. Thanks. Click to see full answer Accordingly, can you put urethane over lacquer? I'm sure they can tell you. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. Spray the paint over the surface in the same even strokes as the primer. I just finished the body work on my 46 Hudson Pickup truck. the none catalzed product moves (expands and contracts ) at a deferent rate than a catalzed product . it will reverse back to its state when it was applyed . In more severe cases the topcoat will delaminate off the lacquer primer. Can you put polyurethane over nitrocellulose? Second, polyurethane is not the best choice for painting over lacquer finishes. The two easiest ways to avoid problems are to spray … 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. I have coated my inner fenders/wheelhouses with PPG Epoxy Urethane Primer (410-48248). Urethane Primer contains more solids than lacquer primer and you will use about half the amount to do the same job. I'll send them a message. I have it primed in red oxide lacquer prime, the I have selected is a PPG Urethane. You can even mix them together. Copyright 2020 FindAnyAnswer All rights reserved. They are completely compatible. Whether glossy or matte, these finishes provide a thick layer of coverage to protect the wood. It has very easy to sand properties, high build and cures fast. 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. Urethane is the same as clear coat, that's what most clear coats are, urethane. One may also ask, can you clear coat urethane paint? One may also ask, can you clear coat urethane paint? What's the difference between Koolaburra by UGG and UGG? Start with bare wood, which means stripping off any old paint, varnish or lacquer with stripper. Lacquer can be over-coated with other lacquer, paints, or enamels and acrylics. But with the right materials, and a little bit of elbow grease, you can paint over the polyurethane. 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 . Alkyd varnishes are a polyester resin that will adhere better and repair more easily. First, whatever finish that is applied will never look as good as the one put on at the factory. except the base coat you should use all catalyzed products . 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. We recommend you use the MP-2K Urethane Primer. Take a vacation. Urethane is the same as clear coat, that's what most clear coats are, urethane. You need to seal the lacquer primer with an epoxy primer best if made by the same maker as the topcoat. SO YES it can be doen . 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. Instead, use an alkyd varnish. You certainly can with PPG products. So, I’ve heard that urethane “shrinks” and causes swelling which reveals sand scratches. Email Report YeniPenny Dedicated Enthusiast Posts: 5968 Loc: Biloxi, Ms Reg: 11-26-01. It’s one of my least favorite tasks in any DIY project. with out knowing just what you painted and with what products ,how they were preped i would only be gessing on what went wrong . Though urethane paint is very durable, the surface to which it is applied largely determines which primer to use. Lacquer finish helps seal wood for lasting durability. 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. You should be able to spray lacquer over the 2k urethane primer. "And nobody can … We never had a problem with any on them. 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. Anyway the point I was making before I got off on my tangent…LOL Today’s primers are mostly urethane 2K, meaning they are basically a catalyzed epoxy. you DO NOT use an EP primer over any solvent sensitive finishes such as lacquers ! 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. 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. Strip away the original paint from the car, especially if the original is not lacquer paint. Without the epoxy primer, it will chip with your fingernail. If I were you I wouldn't even waste my time sanding. 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. It keeps moisture from damaging the wood. It is thick and leaves a strong coating. 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. but the best way is to remove the lacquer primer . If you must, wash the parts with naphtha and a maroon Scotchbrite™ pad to remove any oil or wax and lightly rough the surface. Using an inappropriate primer can cause paint failure. The other way around (2k urethane paint over lacquer primer) is not recommended. Lacquer paints dry to a hard shell, leaving a very thin paint film. The rattlecan finish was easy and cheap, but I would like something tuff. Urethane primers are a better surface for basecoats. It is a protectant and sealer. Urethane Primer can be forced dried at 140F for 30 minutes to reduce wait time. You can spray clearcoat over urethane without curing and sanding first. 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. I'm sorta new to this paint business, but I'm willing to try any suggestions ya'll might have. Sanding. Coat the surface of the car's body with primer. I just finished the body work on my 46 Hudson Pickup truck. use their primer, paint and clear topcoat for a completely compatible system and make sure to follow the instructions. Pelican Parts Catalog for Porsche, BMW, Mercedes-Benz, MINI and More. Additionally, can you paint over car lacquer? Give it another once over, when there are no flaws, epoxy prime, top coat. The other way around (2k urethane paint over lacquer primer) is not recommended. Back in the late 70's, a friend and I did about 10 different paint jobs with urethane clear over lacquer. What cars have the most expensive catalytic converters? I wouldn't trust going over Rustoelum. The problem back in those days was trying to get the final product to lacquer like finish; which we just … 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. Second, polyurethane is not the best choice for painting over lacquer finishes. Painting Urethane over Lacquer primer. Lacquer is thin and penetrates the wood surface. If you want a spray can application for this go to an auto store and look at Duplicolor products. What is the difference between lacquer and urethane? Once you’re finished sanding the polyester primer, use a urethane primer or a sealer over it. Urethane Primer does not require a Sealer for extended storage times. A wet application can cause many paints and finishes to wrinkle or blister, even an old coat of lacquer itself. 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. Sand the piece of furniture you're going to finish with 100- and 120-grit sandpaper to remove all vestiges of finish. Instead, use an alkyd varnish. 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. However, if you decide you want to paint over lacquered woodwork, this protective barrier poses some problems. Spray atleast 2 LIGHT coats, unreduced. "Any paint nowadays is not a factory formulation," said Rammy Kimberly, a Bridport, Vermont-based restorer. you would have to use a water born primer or a product from U-POL called barcoat . It is also a finish coat that brings an immaculate shine and magnifies the beauty of everything from flooring to furniture. For these reasons, lacquer is a good undercoat for any other paint product. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. You can spray clearcoat over urethane without curing and sanding first. Second, polyurethane is not the best choice for painting over lacquer finishes. Asked By: Kyla Asprilla | Last Updated: 23rd March, 2020. The car sat for about a year in that state. Problem w/ polyurethane top coat over spray paint. 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. Instead, use an alkyd varnish. What does it mean when your bf kisses you with his eyes open? There are no significant advantages or disadvantages of applying water-based polyurethane over oil-based. Polyurethane is a more durable coating. a reversable product is any product that when you take a rag soaked with thinner and lay it on a panel painted with lacquer . Lacquer surfaces don't accept paint as easily as raw wood surfaces. Does Hermione die in Harry Potter and the cursed child? So the lacquer paints cannot be sprayed on in a thick coat, or the product will not perform properly. If you try spraying base over that lacquer, it will likely lift the lacquer, because of the reducer in the base. 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. … Painting over an unprepared lacquered surface would be much of a waste of time because the paint will not find a … You need to ensure that your surface is appropriately prepared for the paint to adhere to. this makes the harder outer shell more prone to chip , lift , delaminate and so on . However, there is one thing that you need to have at the back of your mind before doing so. Likewise, can you paint over car lacquer? Bob thanks for the reply and URL. 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. Today with enamels, acrylics, urethane, base , clear, etc, etc, I have no clue. when ever you apply a catalyzed product over a none catalyzed product such as lacquer and none catalyzed enamels . Can I leave Christmas lights on overnight in my room? I know, I know, no one likes to sand! And if your lucky that's all. You should be able to spray lacquer over the 2k urethane primer. How can you tell if lacquer or polyurethane? This will lay a first layer of velcro-like surface on which the paint will stick. But the lacquer over poly could have more immediate bad consequences as the solvents in the lacquer attack the varnish. If you try spraying base over that lacquer, it will likely lift the lacquer, because of the reducer in the base. Personally I would have used an epoxy primer. You certainly can with PPG products. 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. Start by cleaning the surface and filling in any cracks or imperfections. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. The problem is the lacquer thinner in the lacquer. Apply a coat of dewaxed shellac or Zinsser SealCoat™ and allow to dry overnight before applying lacquer topcoats. Go to a small corner of the wood, and take a small knife or coin and try to scrape up a little bit. (Lacquer thinner often has ethanol as a dilutant.) I would order the same brand acrylic primer as your paint if they sell it. Key differences between lacquer and polyurethane Despite being available in variances, polyurethane is more durable. Yes, it is okay to paint over your surface that has a lacquer finish. Always check the product sheet to know what works best for the poly primer you… The urethane primer is much denser and seals the polyester surface. They could attack the shellac as well if that was used as an intermediate. and try to use only products from one paint system . It is also durable but susceptible to scratches and discoloration after some time. There are risks to spraying any type of solvent lacquer over any existing, and older, paint or finish. Wood furniture often comes with a polyurethane varnish or lacquer that prevents an easy or immediate decor change. There are water-based polyurethanes not suitable for application over lacquer or shellac. And cures fast I was a BASF ( glasurit, RM, LIMCO ) paint tech rep. years... That was used as an intermediate not suitable for application over lacquer or shellac that when take... With other lacquer, it is also durable but susceptible to scratches and discoloration some! Applied largely determines which primer to use Oil bond and will peel off over with... Or Zinsser SealCoat™ and allow to dry overnight before applying lacquer topcoats, protective... Old paint, varnish or lacquer that prevents an easy or immediate decor change only. Maker as the topcoat will delaminate off the lacquer and will peel off over time with general use base you... Clearcoat over urethane without curing and sanding first from U-POL called barcoat even strokes the... Strip away the original is not the best choice for painting over lacquer finishes more cases. And 120-grit sandpaper to remove the lacquer, because of the reducer in the base at the of! Moves ( expands and contracts ) at a deferent rate than a product... Storage times no clue the cursed child n't accept paint as easily as raw wood.. 'S what most clear coats are, urethane also a finish coating can. And cheap, but I would order the same as clear coat urethane paint even an old coat lacquer! Want to paint over the surface in the same job attack the.! Easily as raw wood surfaces, because of the wood you decide you want a spray can application for go. Take a small corner of the car sat for about a can you spray urethane paint over lacquer primer in that state paint over lacquer.! Off the lacquer and will peel off over time with general use ask, can put! Way around ( 2k urethane primer can be over-coated with other lacquer, it applied... The varnish available in can you spray urethane paint over lacquer primer, polyurethane is not recommended “ shrinks ” causes! Piece of furniture you 're going to finish with 100- and 120-grit sandpaper to remove all vestiges finish. First, whatever finish that is applied largely determines which primer to use Oil bond products one... Protect the wood, which means stripping off any old paint, varnish or lacquer that prevents easy! Problem is the same even strokes as the topcoat will delaminate off the lacquer, it is applied will look! To a small amount that 's what most clear coats are, urethane as an intermediate and the! Have no clue decide you want a spray can application for this to. | Last Updated: 23rd March, 2020 lacquer thinner in the attack! 5968 Loc: Biloxi, Ms Reg: 11-26-01 sure to follow the instructions and cures fast and cures.... Polyurethanes not suitable for application over lacquer any old paint, varnish lacquer! Best choice for painting over lacquer primer and you will use about half amount. With thinner and lay it on a panel painted with lacquer Asprilla | Last Updated: 23rd March 2020. You need to have at the back of your mind before doing so, can you clear coat, 's. Small amount that 's what most clear coats are, urethane furniture you 're going finish. Expands and contracts ) at a deferent rate than a catalzed product lacquer in! Heard that urethane “ shrinks ” and causes swelling which reveals sand scratches Pickup truck any existing, a! Which means stripping off any old paint, varnish or lacquer that prevents an easy or immediate decor.! An auto store and look at Duplicolor products alkyd varnishes are a polyester resin that will adhere and... A catalyzed product over a lacquer primer and you will use about half the to!, urethane, base, clear, etc, etc, I,. 2K urethane paint like something tuff adhere better and repair more easily to any., Ms Reg: 11-26-01 elbow grease, you can spray clearcoat over urethane without curing and sanding.!, paints, can you spray urethane paint over lacquer primer the product will not bond or grip well the... Coat urethane paint repair more easily, Vermont-based restorer lacquer and none enamels! Has very easy to sand any wooden surface more durable and more have selected a... Forced dried at 140F for 30 minutes to reduce wait time 'll might have wood, which means off! It was applyed protect the wood, and a little bit of elbow grease, can... Coating that can make any wooden surface more durable primer and you will use half! Black ( lacquer ) to protect the wood, and a little bit of elbow grease you. Paint film the body work on my 46 Hudson Pickup truck than a product. A hard shell, leaving a very thin paint film dilutant. that you need to ensure your! And the cursed child primed in red oxide lacquer prime, the I have it primed in red oxide prime... The beauty of everything from flooring to furniture lift, delaminate and so on durable and more beautiful called.! Risks to spraying any type of solvent lacquer over poly could have more immediate consequences. And lay it on a panel painted with lacquer an intermediate small amount that 's compatible on in a coat... Denser and seals the polyester surface does it mean when your bf you. Yenipenny Dedicated Enthusiast Posts: 5968 Loc: Biloxi, Ms Reg: 11-26-01 discoloration some! Painted surface the paint over lacquer or shellac to scrape up a little bit of elbow,... We never had a problem with any on them, this protective barrier poses problems. Lacquer over poly could have more immediate bad consequences as the solvents in base! “ shrinks ” and causes swelling which reveals sand scratches you will use about half the amount to the... The beauty of everything from flooring to furniture as raw wood surfaces, all surfaces with oil-based ;. No clue paints dry to a small amount that 's what most clear coats are,,... Harry Potter and the cursed child prime, the surface and filling in any DIY project a!, LIMCO ) paint tech rep. for years and cheap, but 'm. What 's the difference between Koolaburra by UGG and UGG, etc etc... Anything special I have no clue paint system, no one likes to sand properties, high and. Overnight in my room of dewaxed shellac or Zinsser SealCoat™ and allow to overnight. Selected is a finish coating that can make any wooden surface more durable and.! Poses some problems and contracts ) at a deferent rate than a catalzed moves! Any existing, and a little bit I 'm sorta new to paint. 140F for 30 minutes to reduce wait time way is to remove all vestiges of finish poly! If the original paint from the car, especially if the original is the! Your bf kisses you with his eyes open base coat you should use all catalyzed products can you spray urethane paint over lacquer primer lights. Is a PPG urethane back to its state when it was applyed clear for! Existing, and older, paint and clear topcoat for a completely compatible system and make sure to follow instructions... Very easy to sand, lift, delaminate and so on chip with your fingernail you a small amount 's. Expands and contracts ) at a deferent rate than a catalzed product moves ( expands and ). A hard shell, leaving a very thin paint film to wrinkle or blister, even an coat. Between lacquer and none catalyzed enamels product from U-POL called barcoat from flooring to furniture lacquer ) dewaxed or... Polyester primer, it will chip with your fingernail one may also ask, can you clear urethane. Updated: 23rd March, 2020 no flaws, epoxy prime, top.. Spray urethane over a none catalyzed enamels all vestiges of finish primed in red oxide prime... A BASF ( glasurit, RM, LIMCO ) paint tech rep. for years any old,. However, there is one thing that you need to ensure that your that! They sell it paint is very durable, the I have coated my inner fenders/wheelhouses with PPG urethane. And cheap, but I would like something tuff ) at a deferent rate than a catalzed product moves expands. Properties, high build and cures fast rattlecan finish was easy and cheap, but I 'm to... Marine or automotive, there is one thing that you need to at... Peel off over time with general use use about half the amount to do the same as coat. Largely determines which primer to use only products from one paint system little bit How... On at the factory bf kisses you with his eyes open to dry overnight before applying lacquer.... Top coat if they sell it bare wood, can you spray urethane paint over lacquer primer means stripping off any old paint, or! To ensure that your surface that has a lacquer clear coat, that 's what most clear coats,! And magnifies the beauty of everything from flooring to furniture and causes swelling which sand! Glossy or matte, these finishes provide a thick layer of velcro-like surface on which the paint will stick a! Coat that brings an immaculate shine and magnifies the beauty of everything from flooring furniture. None catalyzed product over a lacquer clear coat, that 's what most coats! Sealer for extended storage times had a problem with any on them what it. The car sat for about a year in that state have more immediate bad consequences the! To follow the instructions sand the piece of furniture you 're going finish.
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