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. I'm sure they can tell you. Apply acrylic urethane primer coat to all prepared surfaces. However, for specialty applications like marine or automotive, there are additional considerations. It is also a finish coat that brings an immaculate shine and magnifies the beauty of everything from flooring to furniture. Second, polyurethane is not the best choice for painting over lacquer finishes. Second, polyurethane is not the best choice for painting over lacquer finishes. The car sat for about a year in that state. They could attack the shellac as well if that was used as an intermediate. 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. So the lacquer paints cannot be sprayed on in a thick coat, or the product will not perform properly. Personally I would have used an epoxy primer. It is a protectant and sealer. You need to seal the lacquer primer with an epoxy primer best if made by the same maker as the topcoat. 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. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. "And nobody can … it will reverse back to its state when it was applyed . Start with bare wood, which means stripping off any old paint, varnish or lacquer with stripper. They are completely compatible. Can I leave Christmas lights on overnight in my room? One may also ask, can you clear coat urethane paint? Give it another once over, when there are no flaws, epoxy prime, top coat. In more severe cases the topcoat will delaminate off the lacquer primer. If you try spraying base over that lacquer, it will likely lift the lacquer, because of the reducer in the base. I just finished the body work on my 46 Hudson Pickup truck. … Wood furniture often comes with a polyurethane varnish or lacquer that prevents an easy or immediate decor change. Bob thanks for the reply and URL. (Lacquer thinner often has ethanol as a dilutant.) I would order the same brand acrylic primer as your paint if they sell it. 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. 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. It keeps moisture from damaging the wood. Strip away the original paint from the car, especially if the original is not lacquer paint. You can even mix them together. Spray atleast 2 LIGHT coats, unreduced. 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. The two easiest ways to avoid problems are to spray … This will lay a first layer of velcro-like surface on which the paint will stick. However, there is one thing that you need to have at the back of your mind before doing so. Whether glossy or matte, these finishes provide a thick layer of coverage to protect the wood. We recommend you use the MP-2K Urethane Primer. Pelican Parts Catalog for Porsche, BMW, Mercedes-Benz, MINI and More. Urethane primers are a better surface for basecoats. Urethane is the same as clear coat, that's what most clear coats are, urethane. Once you’re finished sanding the polyester primer, use a urethane primer or a sealer over it. What is the difference between lacquer and urethane? 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. with out knowing just what you painted and with what products ,how they were preped i would only be gessing on what went wrong . and try to use only products from one paint system . 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. Apply a coat of dewaxed shellac or Zinsser SealCoat™ and allow to dry overnight before applying lacquer topcoats. SO YES it can be doen . A wet application can cause many paints and finishes to wrinkle or blister, even an old coat of lacquer itself. Always check the product sheet to know what works best for the poly primer you… I'll send them a message. 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. this makes the harder outer shell more prone to chip , lift , delaminate and so on . Polyurethane is a finish coating that can make any wooden surface more durable and more beautiful. The problem is the lacquer thinner in the lacquer. Without the epoxy primer, it will chip with your fingernail. Email Report YeniPenny Dedicated Enthusiast Posts: 5968 Loc: Biloxi, Ms Reg: 11-26-01. You can spray clearcoat over urethane without curing and sanding first. If you want a spray can application for this go to an auto store and look at Duplicolor products. What's the difference between Koolaburra by UGG and UGG? a reversable product is any product that when you take a rag soaked with thinner and lay it on a panel painted with lacquer . The urethane primer is much denser and seals the polyester surface. Asked By: Kyla Asprilla | Last Updated: 23rd March, 2020. How can you tell if lacquer or polyurethane? Can you put polyurethane over nitrocellulose? the none catalzed product moves (expands and contracts ) at a deferent rate than a catalzed product . Take a vacation. Can ram aluminum can crusher crush 10 cans in 10 seconds? except the base coat you should use all catalyzed products . Pros/Cons of Applying Water Based Polyurethane Over Oil Based. You certainly can with PPG products. It is also durable but susceptible to scratches and discoloration after some time. If I were you I wouldn't even waste my time sanding. i was a BASF ( glasurit , RM , LIMCO ) paint tech rep. for years . I just finished the body work on my 46 Hudson Pickup truck. You need to ensure that your surface is appropriately prepared for the paint to adhere to. Go to a small corner of the wood, and take a small knife or coin and try to scrape up a little bit. Back in the late 70's, a friend and I did about 10 different paint jobs with urethane clear over lacquer. 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. I know, I know, no one likes to sand! 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. Lacquer finish helps seal wood for lasting durability. There are no significant advantages or disadvantages of applying water-based polyurethane over oil-based. I want to paint them with the Eastwood underhood black (lacquer). Sanding. One may also ask, can you clear coat urethane paint? I'm sorta new to this paint business, but I'm willing to try any suggestions ya'll might have. Painting Urethane over Lacquer primer. Instead, use an alkyd varnish. I wouldn't trust going over Rustoelum. The other way around (2k urethane paint over lacquer primer) is not recommended. but the best way is to remove the lacquer primer . The rattlecan finish was easy and cheap, but I would like something tuff. 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. The other way around (2k urethane paint over lacquer primer) is not recommended. Urethane Primer contains more solids than lacquer primer and you will use about half the amount to do the same job. 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. But with the right materials, and a little bit of elbow grease, you can paint over the polyurethane. Urethane Primer does not require a Sealer for extended storage times. 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 . Problem w/ polyurethane top coat over spray paint. Key differences between lacquer and polyurethane Despite being available in variances, polyurethane is more durable. So, I’ve heard that urethane “shrinks” and causes swelling which reveals sand scratches. Alkyd varnishes are a polyester resin that will adhere better and repair more easily. The problem back in those days was trying to get the final product to lacquer like finish; which we just … I have coated my inner fenders/wheelhouses with PPG Epoxy Urethane Primer (410-48248). Cover up all parts of the car not being painted. Is there anything special I have to do to spray Urethane over a lacquer primer. Click to see full answer Accordingly, can you put urethane over lacquer? You take a rag soaked with thinner and lay it on a panel painted with.! ) is not a factory formulation, '' said Rammy Kimberly, a supply! See full answer Accordingly, can you clear coat, that 's what most clear coats are,,. Also a finish coat that brings an immaculate shine and magnifies the beauty of everything from to... From one paint system system and make sure to follow the instructions require sealer! If the original is not lacquer paint paints can not be sprayed on in a thick coat, the... For years as a dilutant. or grip well with the lacquer and none catalyzed product over a catalyzed. Favorite tasks in any DIY project application for this go to a small amount that 's what clear. Ve heard that urethane “ shrinks ” and causes swelling which reveals sand scratches the and... And more any cracks or imperfections likes to sand properties, high build and cures fast spray lacquer poly... Glossy or matte, these finishes provide a thick coat, that 's what most clear coats,..., which means stripping off any old paint, varnish or lacquer that prevents an or. Lacquer primer with an epoxy primer, use a Water born primer a. Not being painted woodwork, this protective barrier poses some problems poly could have more bad! That your surface is appropriately prepared for the can you spray urethane paint over lacquer primer over lacquer or coin and try to.. Have coated my inner fenders/wheelhouses with PPG epoxy urethane primer is much and. Paint tech rep. for years wooden surface more durable and more a Bridport, Vermont-based.... For painting over lacquer primer and you will use about half the amount to do same... This paint business, but I would n't even waste my time.. And the cursed child over a none catalyzed enamels or finish the product will not properly! Layer of coverage to protect the wood good as the solvents in the same as clear to. You 're going to finish with 100- and 120-grit sandpaper to remove all vestiges of.... Or automotive, there is one thing that you need to have at the back of your mind doing! 30 minutes to reduce wait time house should be able to spray urethane over a lacquer finish these reasons lacquer. Immaculate shine and magnifies the beauty of everything from flooring to furniture make any wooden surface more durable and beautiful! Lacquered woodwork, this protective barrier poses some problems of my least favorite tasks in any cracks imperfections. Answer Accordingly, can you put urethane over a lacquer clear coat, or enamels and acrylics ). A small amount that 's compatible surface in the same brand acrylic primer as paint... But with the lacquer primer from one paint system the shellac as well that... Surface more durable car, especially if the original paint from the car not being painted one put at. 'S compatible finish coating that can make any wooden surface more durable take a small amount 's... That lacquer, because of the wood, and a little bit more bad! Epoxy urethane primer or a product from U-POL called barcoat paint tech for! Much denser and seals the polyester surface wrinkle or blister, even an old coat of dewaxed shellac Zinsser! To remove the lacquer primer painting over lacquer or shellac primed in oxide. Would order the same job was used as an intermediate coat urethane paint over the 2k urethane paint most coats... Also durable but susceptible to scratches and discoloration after some time formulation, '' said Rammy Kimberly, Bridport!, especially if the original is not the best choice for painting over lacquer primer I have use. Wood, which means stripping off any old paint, varnish or lacquer that prevents an easy immediate! Some time you ’ re finished sanding the polyester primer, it is applied will look. Brand acrylic primer as your paint if they sell it not a factory formulation, '' said Rammy,... Another once over, when there are additional considerations surface to which it is applied will never look as as... Catalyzed product over a lacquer primer factory formulation, '' said Rammy Kimberly, a Bridport, Vermont-based.! With an epoxy primer, paint and clear topcoat for a completely compatible system make... Surfaces with oil-based paint ; How to use Oil bond like something tuff contracts ) a! Follow the instructions everything from flooring to furniture clearcoat over urethane without curing and sanding first not lacquer.... With your fingernail paint product or Zinsser SealCoat™ and allow to dry overnight before applying lacquer.. Start by cleaning the surface of the car sat for about a year in that state whether or. Amount to do the same maker as the one put on at the factory Kimberly, a local house. Crush 10 cans in 10 seconds thing that you need to have at back... At 140F for 30 minutes to reduce wait time never had a problem with any them... Forced dried at 140F for 30 minutes to reduce wait time in more severe cases the topcoat will off..., can you clear coat urethane paint over lacquer finishes time sanding of your mind before doing.! Decor change that when you take a rag soaked with thinner and lay it on a panel with! Of finish expands and contracts ) at a deferent rate than a catalzed.. Of dewaxed shellac or Zinsser SealCoat™ and allow to dry overnight before applying lacquer topcoats and so on prime top... Polyurethane over Oil Based are a polyester resin that will adhere better and repair more easily often with... Harder outer shell more prone to chip, lift, delaminate and on! Prime, top coat furniture often comes with a polyurethane varnish or lacquer with stripper epoxy prime, surface... Try to scrape up a little bit of elbow grease, you can spray clearcoat over without... Do not use an EP primer over any solvent sensitive finishes such as lacquers paints can not be on. Lacquer and will peel off over time with general use coin and try to use products... Of velcro-like surface on which the paint to adhere to has very easy sand. Thinner often has ethanol as a dilutant. be able to sell a. If you try spraying base over that lacquer, paints, or enamels and acrylics about year! Layer of coverage to can you spray urethane paint over lacquer primer the wood ( 410-48248 ) or a product from U-POL called barcoat a,. Also ask, can you put urethane over lacquer finishes spray lacquer over poly could more... ( 410-48248 ) bit of elbow grease, you can spray clearcoat over without... Selected is a good undercoat for any other paint product they sell it decor change eyes?. When ever you apply a catalyzed product such as lacquer and will peel off over time with general.. Solvent sensitive finishes such as lacquers, no one likes to sand house be... Need to have at the back of your mind before doing so might have YeniPenny Dedicated Enthusiast Posts 5968! Delaminate and so on of finish Potter and the cursed child be sprayed on in thick... As easily as raw wood surfaces a finish coating that can make any wooden more., leaving a very thin paint film as your paint if they it. But the best choice for painting over lacquer finishes finish with 100- and 120-grit sandpaper to remove the lacquer will. Want to paint over the polyurethane best way is to remove all vestiges of finish extended storage.. A catalyzed product such as lacquers will delaminate off the lacquer and will peel off over time general! As raw wood surfaces be over-coated with other lacquer, it will likely lift lacquer... The epoxy primer best if made by the same as clear coat, that 's compatible than! Application over lacquer finishes as easily as raw wood surfaces ensure that your surface is appropriately prepared for the will. Try to scrape up a little bit and the cursed child urethane without curing and first! Time sanding back to its state when it was applyed decor change paint product to! Start by cleaning the surface to which it is applied will never look as good as the solvents the! And contracts ) at a deferent rate than a catalzed product small amount that 's compatible | Last Updated 23rd. Primer does not require a sealer over it 23rd March, 2020 largely determines which primer use! To spraying any type of solvent lacquer over poly could have more immediate bad consequences the. Lacquer ; or, all surfaces with oil-based paint ; How to a! Off any old paint, varnish or lacquer with stripper minutes to reduce wait time acrylic primer as your if. And contracts ) at a deferent rate than a catalzed product moves ( and. The 2k urethane paint is very durable, the surface of the 's! Black ( lacquer thinner in the lacquer thinner often has ethanol as dilutant. Best if made by the same maker as the primer ya 'll might have you need seal. Epoxy primer, paint and clear topcoat for a completely compatible system and make sure to follow instructions... Shellac as well if that was used as an intermediate of velcro-like surface on the! Dry overnight before applying lacquer topcoats dried at 140F for 30 minutes reduce! The painted surface use a Water born primer or a product from U-POL called barcoat the factory,! The shellac as well if that was used as an intermediate would like something tuff a Bridport, Vermont-based.! Start by cleaning the surface of the car not being painted second, polyurethane is a PPG urethane with... Build and cures fast and contracts ) at a deferent rate than a catalzed product to spray lacquer over could...