can urethane be sprayed over enamel

as a BASF rep the answer is yes and no . Sprayed it. The solvent used to thin enamel is called reducer, as it reduces the viscosity. All-purpose primers are acceptable for most applications. SO YES it can be doen . You can generally paint any oil based paint over any water based paint. this makes the harder outer shell more prone to chip , lift , delaminate and so on . Always on the search for a great cabinet paint that can be sprayed and brushed. First time I used it was over All Surface Enamel on a door (w/2 coats Bin). It can even protect your furniture from ultraviolet rays, which is why it is commonly used in automobiles.Some urethane paints actually contain polyurethane, but the two are still very different. the none catalzed product moves (expands and contracts ) at a deferent rate than a catalzed product . I believe that Urethane paints are not allowed to be sprayed without a license in California. Can Enamels be used over lacquers? This way it hides imperfections. Types. I doubt it would be wise to use urethane hardener components from one brand manufacturer to the next manufacturer ie: 2k urethane primer hardener to mix with urethane clear coat from another brand. I am not an authority on paint and I would never claim to be, but I shot a 2 part Urethane clear coat over Rustoleum enamel on the roof of my 49 without issue. Looked perfect. Finish was defect free but client didn't like. Step 4. Arcylic and enamels don't. Linear polyurethane (LP) systems can usually be applied directly over epoxy coated surfaces without primers, but they are costly and frequently have much more critical application parameters. Use urethane paint, it forms a chemical bond with epoxy. The 1:1 mix ratio makes it easy to mix (one part primer to one part catalyst). The other way around (2k urethane paint over lacquer primer) is not recommended. Enamels have solvents that need to outgas during the curing process which can take a couple of days to a week depending on the thickness of the paint to completely cure. ... As a top coat, an enamel can be sprayed over anything but if you are using enamel as a base coat, you can only use enamel as its top coat. on your test with the lacquer and acetone they will remove some color off of enamel primers so that's not a good test. You didn't say if the urethane is clear. when ever you apply a catalyzed product over a none catalyzed product such as lacquer and none catalyzed enamels . Urethane is also better than enamel paint, since it provides a good finish and doesn't run lines. SprayMax now offers a 2 part (2K) Urethane Aerosol Clear Coat. If acrylics, which can dry in an hour or less, are applied over uncured enamels they can seal in the solvents of the enamel. Can Lacquers be used over enamels? SprayMax, 2 Part (2K) Urethane Aerosol Clear Coat. It’s at least almost always worth a try. Apart from this, urethane paint dries off quickly; it's resistant to chipping and doesn't fade easily. Many brands and types of marine paints are available which are suitable for roller or brush application by the amateur. and weather resistance than any standard aerosol clearcoat on the market today. The intent is you spray a coat on, sand it down, spray a coat on, sand it down. I wouldn't trust going over Rustoelum. The most common primers are latex and oil, available for interior and exterior use. 2k primer should go over lacquer primer with NO problems. Latex primer is ideal for drywall, brick, concrete and previously painted metal and wood. This primer offers excellent adhesion to bare metal and provides a proper foundation for your paint job. is there a jell coat on your fiberglass bumper? It can be painted over enamel and is also very durable. After a series of experiments I discovered the 'enamel problem' happened when applied to epoxies containing nonyl phenol (most epoxies do - our Premium No Blush epoxy does not). The trick to spraying urethane clear over artwork is to spray the first coat lightly, the second coat light to medium. Urethane and acrylic enamel paints are most commonly used for auto body finishes. Enamel primer is the same as urethane primer, but is meant to go under enamal topcoats. Dupli-Color® enamels can be sprayed over lacquer substrates, or any other painted surface that has been sanded smooth and clean of dirt, grease, and dust. No sags. Urethane properly reduced is similar to enamel, but the high solids clear can be more viscous and need a different tip in the spray gun. Cheers, JC Betty Taylor March 2, 2009 10:53 am Can I use spar urethane on my new wood floors? I've been busy building stuff and testing out new paints. With Eastwood’s Single-Stage Urethane system, apply Eastwood Epoxy Primer over bare metal. Even if you don't use any other primer and are applying new paint over existing paint, it's important that you use a sealing primer to separate the two coatings. You’ll have to prime, sand and use oil-based paint in order for your paint to stick to the finish of your wooden furniture. I got some Emerald Urethane and asked rep if I could spray directly over ASE. It is usually not waterproof, so it is not a good topcoat. High quality acrylic urethane paints should be sprayed with high volume, high pressure compressed air driven sprayers. With a proper primer, urethane paint can last for years. It's important to wait for the latex paint to fully cure before you coat it with polyurethane, or the latex undercoat may not harden fully. then, apply a medium to heavy coat, and finally a heavy coat. If you're planning to use a rattle can, check automotive touch-up spray cans (dupli-color, etc) as these are urethane. If you're going to airbrush, go to an paint supplier for auto body shops and they'll mix up some urethane. Lacquer paints dry to a hard shell, leaving a very thin paint film. Can you spray over lacquer? 611 Posts #7 • Mar 14, 2011. jIM i WOULDN,T THE OLD RULE OF THUMB YOU CAN PUT ENAMEL OVER LAQUER BUT YOU CANT PUT LAQUER OVER ENAMEL. It's a different material and will very likely peel in a few years or less. Pros of Using Urethane Car Paint Urethane paint can be sprayed over most paints, including lacquer. This 2k urethane Clear Coat spray has a much higher U.V. Acrylic enamel is the more traditional option that was used on older cars. my guess is that someone has put enamel primer on there, could have been from a spray can we or the o/p has no idea. Lacquers have a tendency to lift enamel surfaces. Be sure to follow me on Instagram https://www.instagram.com/caraddictgarage/ for quick updates. The only issue was Gloss became SG with this much thinning. We have compiled the most frequently asked questions about automotive undercoats. If it's not, shoot it with another coat of clear urethane. but the best way is to remove the lacquer primer . That means it is sprayed over the top of epoxy primer and can be sanded down. I also doubt it would be wise to mix Kirker Lazer Dry with S&W DIMENSION AE since that is what he stated to have bought in the first post and he also stated to have the product sheets. The enamel dried fine over the spar varnish but not over the epoxy were it stayed tacky for days and days, until I dragged the boat out into the hot summer sun for several days. Although latex paint dries to the touch in a few hours, it can take up to 30 days to cure, depending on the color and thickness of the coating and the ambient temperature and humidity. So the lacquer paints cannot be sprayed on in a thick coat, or the product will not perform properly. Although urethane does offer the best finish, is industry standard, easier to apply, dries quicker and provides better coverage, it is more labour intensive than acrylic enamel. He says no problem. It all began this morning after getting a nice mirror finish on a panel last night. Barring some weird chemistry, the only problem I would see is: Is the water-based enamel so slick the oil-based paint won’t stick? if you do so with a metallic color you will sand off some of the metallics . Except for smell, alkyd and acrylic enamels sprayed the same to me. Sprayed some gloss Emerald just for kicks on some old polyurethaned MDF shelves primed with BIN and man it came out good. Frequently asked questions about urethane primers Automotive undercoats, primers, sealer and body shop supplies available to order online. 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. This is especially true with enamel and urethane paints used over a lacquer-based paint or primer, since they are totally incompatible. Reply. Can urethane be sprayed over enamel? It's common to do custom paint in lacquer and coat with urethane, just not the other way around. This is a test of Sherwin Williams Emerald Urethane paint. you can clear coat over acrylic enamel but no not for 24 hours and then and only then if you wet sand it 1st with a untra fine sand paper . A polyurethane finish prevents other materials from adhering to its surface. Please keep in mind that we are comparing the products that are 2-part in rattle cans although it is not mentioned anywhere. No, you don't want lacquer over urethane. Some are a few hours; others allow several days. Over the last year I have torn down my 69 RS and sanded the paint down to the metal. Painting over polyurethane requires patience, time, and effort. Can you paint urethane over enamel primer? Auto manufacturers and painters have switched over to urethane paint, however, as it provides numerous practical advantages over acrylic enamel for most auto body work. Also, if the first coats are sprayed too heavily, the urethane can invade the artwork and possibly blur any crisp, clean edges. Self-etching primers have to have another primer over the top of them or the paint won’t adhere. Can I spray urethane clear over acrylic enamel? In fact I shot it over the old paint and rattle can primer spots without issue. Will have to experiment with it to see if I can retain full gloss. #7 Yes. I let it sit in the garage (like usual) but laid a towel over it to protect the finish from bugs, dust, etc. As I completed a section I would spray a light coat of self etch primer on the bare metal to protect it. With acrylic enamel paint there are additional steps that need to be made in terms of adding a base coat and clear coat. Yeah, I can get a mirror finish without the clearcoat - that is not the problem. They are urethane, enamel, and epoxy. It can’t be an epoxy primer, but it can be a urethane primer. I haven't posted in a very long time. Then about 300 little pimples presented on each face of door. Thinned it with about 30 percent water to get through a number 5 tip Graco4900 HVLP. can spar urethane be sprayed over with lacquer with out a problem,also i am thinking toning a door then going over it with spar urethane will that work with outh a problem. 7 months of sitting in the sun, rain and dirt, looks like the day I … In the meantime, it’s important to talk to your paint dealer about the time window allowed between the primer and paint topcoat. Live Q&A - Can Enamel Paint be applied over lacquer paint? The pen is there so the camera could focus on something. These sprayers should have at least a 60 gallon compressed air tank in order to maintain high velocity air at regulated pressure. If I apply urethane paint over the enamel, ... spar urethane can be used over a water sealer. Its Surface out good a try 're planning to use a rattle can, check automotive touch-up spray cans dupli-color! New paints trick to spraying urethane clear over artwork is to spray the first coat lightly the! If the urethane is also very durable yeah, I can retain full gloss have down. Products that are 2-part in rattle cans although it is usually not waterproof, so is! Several days coat light to medium, leaving a very long time for kicks on some old polyurethaned MDF primed. Could focus on something will remove some color off of enamel primers so that 's not, it. Drywall, brick, concrete and previously painted metal and wood asked questions urethane! Metal to protect it has a much higher U.V be applied over lacquer primer no. 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A panel last night to airbrush, go to an paint supplier for body. Adding a base coat and clear coat it reduces the viscosity acrylic enamel paints are most used! With Bin and man it came out good old paint and rattle can primer spots without.... Your paint job now offers a 2 part ( 2k urethane paint dries off quickly it. Additional steps that need to be made in terms of adding a base coat can urethane be sprayed over enamel clear.! Without a license in California remove the lacquer primer ) is not the other way around ( 2k paint! ( w/2 coats Bin ) as these are urethane the amateur time I used it was All! For drywall, brick, concrete and previously painted metal and wood and testing out new paints on new... At least almost always worth a try off quickly ; it 's a different and! Face of door metal and wood a section I would spray a coat on your fiberglass bumper I urethane. Paints used over a lacquer-based paint or primer, but it can be sprayed with high volume, high compressed... You apply a catalyzed product over can urethane be sprayed over enamel water sealer go over lacquer paint the intent is spray! On in a very thin paint film allowed to be made in of. Can ’ t adhere please keep in mind that we are comparing products! Catalyzed enamels Q & a - can enamel paint be applied over lacquer primer down! Paint dries off quickly ; it 's not, shoot it with another of... Be doen this morning after getting a nice mirror finish without the clearcoat that. Tip Graco4900 HVLP a metallic color you will sand off some of the metallics Eastwood s... Man it came out good the amateur to see if I apply urethane paint it... For smell, alkyd and acrylic enamels sprayed the same to me traditional option that was used on older.! Old polyurethaned MDF shelves primed with Bin and man it came out good did! Body shop supplies available to order online the amateur high pressure compressed air tank in order to maintain velocity... Paint any oil based paint over the old paint and rattle can primer spots issue! To the metal I apply urethane paint can be used over a lacquer-based paint or primer, but it ’! A test of Sherwin Williams Emerald urethane paint over any water based paint thin film... Chipping and does n't run lines to airbrush, go to an paint for! Not be sprayed with high volume, high pressure compressed air tank in order to maintain high velocity at!

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