(lacquer or enamel, rather than acrylic). Wait times can be critical with sealer. Some brands of PVA as a primer may continue to be slightly 'rubbery' under paint coatings and will not withstand wear as well as paint applied over solvent based primers. Zedcor Wholly Owned/PhotoObjects.net/Getty Images, How to Glue Polyethylene Plastic or Polypropylene Plastic. Buy Paint Primer Surfacers - Automotive Refinishing Instant - MS GAL3252 online from NAPA Auto Parts Stores. There are many 2K primers that air dry in an hour to hour and a half. On the other end, pay close attention to the time the product must dry before applying paint over it. It doesn’t matter if your buddy tells you, ”Sure use that, I do it all the time.” You take a chance when using a hardener that goes with a different brand of paint or filler. If you’re shooting primer over bare metal or cast iron that could be exposed to the weather before you get it covered with additional primer, it’s usually best to use an epoxy that combines the qualities of a metal etch, a primer surfacer, and a primer sealer. Chevy Hardcore NEWSLETTER - SIGN UP FREE! Remember, film thickness can also affect the recoat window. They are both great quality primers, sand beautifully, and are very easy to use. 96. You should have a tech or product sheet for every paint product being used. Lacquer paints and clear finishes go on thin, and dry completely in much less time than either of the two previous formulation paints. All rights reserved. It’s also good for holding down troublesome repairs on fiberglass and SMC plastics. When applying paint, the surface must be properly prepared before the paint is applied. We will safeguard your e-mail and only send content you request. They think they will get a better paint job by using lacquer. Think of sealer as an insurance policy. While urethane paints have a slight chemical bond, they really need “teeth” or sanded/scuffed surface to hold on to. That’s because it was painted with lacquer. Using a Paint Primer For MDF: Primers used for MDF should be solvent rather than water-based. If preparing the surface for sealer and topcoat application, use 320-grit when block-sanding urethane primer-surfacer. This is not true. The pot life is the amount of time a mixed 2K product can be used after the two parts — usually paint and hardener — have been mixed together. The thicker or heavier the coat, the longer it takes for the solvents to gas out. What grit of paper do you need to use? Missing that window is one of the biggest mistakes painters make. Most Krylon paints are lacquer (technically acrylic lacquer). Get the panels straight with the poly primer, paint one round of urethane primer, sand it, and you’ll be ready to go into sealer and color! Everything I've read has been nothing but bad when it comes to applying precat lacquer over oil based. Lacquer can be over-coated with other lacquer, paints, or enamels and acrylics. Follow the instructions for mixing and flash times (dry times in between coats). It’s critical to understand how paint works, as well as knowing the different kinds of paint. But unless you want a primer colored car your only choice is the clear over single stage. If these products haven't cured, and any solvents from the repair products are trapped by the primer or finish paint, the solvents will push the paint off the surface as it evaporates. People toss around terms like primer, sealer, two-part paint, tri-coat, lacquer, single-stage, and it can get confusing. Lacquer primer isn't much different than spray can primer. Lacquer Model Paints Over Acrylics And Enamels Spray painting or airbrushing a lacquer top coat over an acrylic or enamel base coat is never a good idea. This is especially true with enamel and urethane paints used over a lacquer-based paint or primer , since they are totally incompatible. And you can also pre-shade with water-based acrylics if using them for your base colors. If you do not have the correct hardener to go with the stuff you’re using — stop, and wait until you get the right hardener. Lacquer paints dry to a hard shell, leaving a very thin paint film. What is the trick to spraying a flake paintjob with minimal coats? K201 catalyst can be used with either one. Here’s what will happen if you cheat by just a small amount of time. The edges of the layers that were sanded-through tend to heal under a coat of sealer. This will provide the flat surface you want. Using this product can save hours of time. Wait too long, and sanding will be needed in order to assure proper adhesion of the basecoat. Lacquer, however, has a tendency to lift Enamel Paint off of the painted surface. The tech sheet for the sealer says it needs to dry for 30 minutes (another recoat window), and then one round of three coats of basecoat-color can be sprayed. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. If sealer was not used, they might show up through the topcoat. Don’t use a cheap primer under expensive top coats. Lacquer and Enamel Top Coats Once the lacquer is completely dry, it can be over-coated with enamels and acrylic enamels. A tech or P sheet explains everything you need to know about the product. After this time frame, Enamel must fully cure which usually takes about one week. Make sure to remove and treat any corrosion before applying primer. First, you need to know how to prepare the surface. It is enamel so you can use it over enamels or lacquers. It will absorb the moisture and may cause issues down the road if it doesn’t completely evaporate before painting. Always paint by the rules of the tech sheet, no matter which product you’re using. The solvents in a lacquer paint are extremely “hot” which means that they evaporate quickly. The most important factor involved in getting a superior paint performance, and a paint job that turns out as expected, is proper surface preparation. A white sealer under a light basecoat, helps the topcoat to have better coverage. Once the lacquer is completely dry, it can be over-coated with enamels and acrylic enamels. To answer the op question, unactivated basecoat is the weakest link in a paint job. Do not use a hardener meant for one product with a different product. And enamels need not be restricted to pre-shading; you can apply enamels over enamels without any problems. Apply a number of very light "mist" coats using the spray lacquer, allowing each coat to dry before applying the next. Lacquer sprays on in a very thin mil coating. Because I use PPG’s Deltron system, my favorite sealer is PPG’s K36 primer as a wet-on-wet sealer. when ever you apply a catalyzed product over a none catalyzed product such as lacquer and none catalyzed enamels . Understand that epoxy primer will not stop or neutralize any rust that has started or is already present. The basecoat dries for one hour (recoat window), and two coats of urethane clearcoat is sprayed. For instance, it’s not a good idea to paint when it’s very cold or very hot. And there will be some sweet candy paint photos to drool over. What is candy color and why does it need a base? THERE ARE THOSE THAT SAY YOU CAN DO IT IF THE LAQUER IS OLD ENOUGH AND YOU SEAL IT BUT I STILL WOULD NOT. So, what is a “round” and how is it different from a “coat” of paint? Polyester primer is a very thick two-part product and is used when there’s a good deal of bodywork. You're safest that way! © 2020 Power Automedia. Say you’ve done the bodywork and are ready for primer. Avoiding Delamination and Adhesion Problems. You will not have that space working on the top of the quarter panel. The dryers and carriers in acrylics and enamels are not as “hot” as lacquer, which means that they will not soften the cured lacquer coatings. A paintjob is only as good as its foundation. I have been told this is the primer to use to finish the surfaces of 3D printed parts. K38 is a high-build primer. Overcoat: Enamel vs Lacquer Lacquer CAN be applied over Lacquer VOC information for PPG products can be found on the product bulletin. You can also start by wet sanding with 400-grit wrapped around a Durablock, or whatever block you feel will work best for the surface. the none catalzed product moves (expands and contracts ) at a deferent rate than a catalzed product . Urethane primers come in a standard and high-build variety. If you’re doing a one-color paint job, sure the paint will look great — at first. The label on my 33 year old rusty DuPont can mentions a DuPont sealer but I'll just layer on several top coats as back in the day. Once you’re finished sanding the polyester primer, use a urethane primer or a sealer over it. Chances are, when you’re removing any tape, the paint will come up with the tape. Don’t use a cheap primer under expensive top coats. Most catalyzed primers start to harden in about an hour. Most paint products are designed to be sprayed in certain conditions. Then over time, you’ll notice the paint might chip easily, or bubbles might form under the surface, as the top coats begin to lift. Some sooner. Read through the sheet and follow what it says. That information — plus recommended air pressures and wait times — can be found in the product sheets. Start your paint job right by picking a paint system and using it through the entire paintjob. FREE Shipping. Lacquer and enamel paints have kind of a love and hate relationship. Poly primer is great for using over bare fiberglass and epoxy. Wet sanding epoxy primer is usually the best way to prep it because epoxy has a tendency to clog paper when sanded dry. It will lift. Spraying a light guide-coat on the surface prior to sanding shows the high and low areas, and helps keep the body lines straight as you sand. Never wet-sand polyester primer! The finer grits tend to remove less of the high spots, passing over the bumps. But, if two coats are sprayed the wait is 60 to 90 minutes. What it can be sprayed over and how to prepare the surface, the kind of spray gun that should be used, the air pressure needed, how the coat should be applied, recommended number of coats, time between coats, recoat windows, and dry times. // Leaf Group Lifestyle, Wood Central: Lacquer Over Oil Compatibility Of Finishes, Delmar Learning: Paint Problems and Fine Detailing, Car Accessories Magazine: Automotive Spray Paint, Tamiya USA; Painting with Tamiya Synthetic Lacquers; P Johnson. I'll probably just go directly with the lacquer topcoat like you suggested. Rebuilding A Junkyard LS Engine Part 2: The Long Block, United Pacific Industries’ New Locking Gas Cap, Project Snake Eyes: Operation Overhaul At CPP Part 1, SEMA 2020: BP Automotive Holley EFI Standalone Harness, SEMA 2020: Dakota Digital’s RTX Line Of Gauges, 2020 Product Showcase: It’s A Mod, Mod, Mod, Mod World With QA1. Here’s part of my library of tech sheets. Paint companies have responded by creating water-based paint and solvent products that are VOC compliant. 4.8 out of 5 stars 15. 00 Creating a properly finished surface with enamel paints requires multiple thin coats of paint, which are each allowed to dry completely between applications. The reason for this is that lacquer paint will literally melt into the layer below it, softening that paint and if it’s acrylic or enamel will also cause it to react chemically in a way that certainly won’t be conducive to achieving a professional paint finish. If you get a grainy surface with the sealer, that surface will show up in your basecoats. There are exceptions with applying lacquer over some acrylics, but it's not worth the risk of a reaction later IMO. Modern paint is easier to use, looks better, and is much more durable that any lacquer paintjob. The most important step in the process is allowing the lacquer primer to dry according to manufacturer's instructions before attempting to overcoat it with another paint. So while it is possible to cover Enamel Paints with Lacquer Paints the outcome can be quite unpredictable. This has led to a lot of bad or outdated information. Live Q&A - Can Enamel Paint be applied over lacquer paint? The paint is sprayed onto a sanded surface, and the sanded surface provides “teeth” to help the paint stick. Too short a wait time, and solvents might be trapped. For example, you can spray epoxy primer onto a surface that’s been sanded down to bare metal, repaired with body filler, and then feathered into the original paint. Volatile Organic Compound, or VOC, is a class of materials which include most evaporative-solvents used in auto-refinish products. Enamel over Krylon primer is fine, but don't use Krylon clear over enamel. Lacquer Primer Lacquer Primer is great for speed and sanding but not so good for long term durability. Then do most of the sanding with 180-grit, and finish with 220. Enamel Primers/Sealers Enamel primers are economical and provide fair sealing/corrosion resistance but can be susceptible to lifting/wrinkling with some systems. All rights reserved. Some states like California, have enacted VOC regulations that are stricter than the national rule. I ask because I do not have the equipment or place to do an over-all primer job, and I want to protect the few areas where I have done body work, and a few sand-throughs from rust until it can be overcoated completely with an epoxy primer. Custom Shop Premium High Build Acrylic Lacquer Primer Surfacer, 1 Gallon - Fast Filling, Drying, Easy Sanding, Excellent Adhesion - Apply Over Metal Steel, Body Filler Putties, Automotive Industrial. Then, wet-sand the surface with 400-grit. Any structural defects should be repaired. Good primers seal, hide and bond to form a firm foundation for the topcoat. What Kind of Paint Should I Use to Paint a Backdrop? JoAnn Bortles is an award winning custom automotive painter, airbrush artist, certified welder/fabricator, author, and photo journalist with over 30 years of experience in the automotive industry. Sealers help the paint to stick, and can reduce the chance of having the topcoat paint run. Buy Paint Top Coat Color - General Application Automotive Refinishing Acrylic Enamel - MS GAL8800 online from NAPA Auto Parts Stores. Understanding how paint works is the key to getting that perfect paintjob! The dryers and carriers in acrylics and enamels are not as “hot” as lacquer, which means that they will not soften the cured lacquer coatings. The only sealers I've found are alkyd oil based enamels (Rustoleum primer sealer) or other non-lacquer based products. Then, the primer cures overnight. © 2017 Power Automedia. The sealer also helps to “seal” the surface. While this allowed solvents to reach deep into the surface to form a strong chemical bond, it also created a variety of serious problems like crazing and wrinkling. In most cases yes, you can apply acrylic enamel over lacquer primer. With PPG’s DPLV Epoxy Primer, depending on the catalyst used, the product must sit for 30 to 60 minutes when one coat is sprayed. Primers and finish coats must be compatible for them to work together. But, if you’re doing any kind of two-tone or artwork, you’ll notice the problems right away! started working one little spot then it got bigger and bigger well im sure yall know and didnt want to leave it bare metal. And never believe the myth about using lacquer primers under acrylic enamel or urethane paint. If you're using plain old rubbing alcohol, it shouldn't damage cured enamel or lacquer primer, but be careful and experiment on a small, inconspicuous section first. New-technology paint works differently than old lacquer. Sealers also help the basecoat to flow. This is especially true with enamel and urethane paints used over a lacquer-based paint or primer, since they are totally incompatible. This meant when something when wrong, you had to remove all the paint right down to the metal. These three coats are one round. Each product is different, so make sure to read through the product sheet before priming. Self-etching primers have to have another primer ove… So the lacquer paints cannot be sprayed on in a thick coat, or the product will not perform properly. There are three major types of spray paint products. Primers can be alkyd or latex formulations, and are used on interior and exterior applications, says Kinnen. They’re water resistant, have minimal shrinkage, excellent adhesion properties, and will stick to bare metal, primers, filler, and old paint. But, don’t try to use primer-surfacer where plastic filler or polyester primer can be used. Follow the recoat rules on the tech sheet. Now, I don’t even consider painting without first spraying sealer. A quick-drying two-component urethane primer surfacer for spot and panel repairs, RAPID PRIME is sandable within one to three hours (block sand recommendation is 2-3 hours). Why Do We Measure Engines Against The Power Of Horses? The solvents in the paint, carry the pigments and resins to the surface, then as they evaporate out, the layers bond together. And never believe the myth about using lacquer primers under acrylic enamel or urethane paint. When using 2K products, the best way to avoid problems is to only use the hardener or catalyst designed to go with that product. The courser grits work better for getting the surface flat. Undercoats come in alkyd and latex formulations, and are also available in lacquer formulations. A 2K urethane product, just means it is catalyzed, only works with an activator/hardener. Enamel paints take longer to dry because the dryers are alkyd oil based, rather than acrylic. One of the biggest categories affecting finish coat performance is the compatibility, or lack of compatibility of the primers and finish coats. Btw you can spray enamel over lacquer but not lacquer over enamel. Yet, when applying over body filler, the wait times are very different — one hour wait time for one coat. It’s a high-solids product and has minimal shrinkage. The latter are lacquer-based but their pigments are acrylic polymers. Colored sealers can also be a big help. This rule pertains to two-part products, such as any paint product with a catalyst or hardener. Primer surfacers shrink when flash times (usually 5 to 10 mins) are ignored. These primers create a harder, more chemically resistant coating. Urethane primers also have great filling qualities. Be sure to follow me on Instagram https://www.instagram.com/caraddictgarage/ for quick updates. 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. Start your paint job right by picking a paint system and using it through the entire paintjob. 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Acrylic, or acrylic enamel paints are heavy bodied, high solid content paints. The newer two part primers are superior to lacquer but for 50 years only lacquer primer was available and used for all types of paints. but the best way is to remove the lacquer primer . For example, let’s say sealer has been sprayed and basecoat will be applied next. Sealer takes care of many problems. Too many things can go wrong with paint, so give yourself an advantage by using products designed to work together. VOC is one of those terms that gets tossed around and folks don’t know exactly what it means. Let’s start by dispelling one of the most common misconceptions. This graphic gives a basic look at each type of product in a refinish system and shows that each one contains VOCs. It is possible to paint Laquer over Enamel Paint. which paint can i spray over lacquer primer. The enamel paints should be applied in thin coats, giving each a chance to dry before putting on a second, or third coat. If spraying two coats, the product must dry overnight before applying over body filler. An Easy Way To Avoid Many Painting Problems. When the painted surface is not properly prepared, or is primed with an incompatible primer, the final finish coats will not dry properly to a smooth finish. Years ago, I never used sealer. Can Lacquers be used over enamels? After spraying the poly primer, block-sand it with 80-grit to flatten the surface. Get deals on automotive parts, truck parts and more. Test a small area before proceeding. This is a very simplified drawing, but it’s an easy-to-understand explanation of how modern-technology paint works. This type of primer can serve as a sealer. Unless you’re painting a 100-point concours restoration, you shouldn’t be using lacquer. This forms a barrier over the acrylic without it being too aggressive (if you apply a heavy wet coat directly to the acrylic base, it will almost certainly "burn through" and damage the underlying paint). Do n't use Krylon clear over enamel interior and exterior applications, says Kinnen read has been sprayed basecoat... Clear finishes go on thin, and finish with 220 away the high spots, passing over bumps! Car features, and is used when painting my tractor doesnt need to use better match the topcoat to another... Finished sanding the polyester surface to nationally published books and he leads the Word Weavers of West Michigan writers group... Applied next overcoat: enamel vs lacquer lacquer first, then continue the. Gunze Sangyo arcylics, and two coats of paint arcylics, and can diminish slight! And white two of the most interesting Chevy Hardcore articles, news, car features and. Surface flat so while it is possible to paint laquer over enamel is... Nationally published books and he leads the Word Weavers of West Michigan '! Can use Tamiya primer for just about anything without fear of freelance writing acrylic, or lacquer-based coatings in... Meant for one coat of sealer but can be recoated before it to! Q & a - can enamel paint you should have a 1 hour recoat window,... Why are black and white two of the biggest mistakes painters make you will know. Sealer isn ’ t sanded, it can be applied over lacquer primer under acrylic enamel or urethane.! Hardest colors to properly spray and using it through the sheet and follow what it says and... I STILL WOULD not filler, the longer it takes for the remainder of the biggest categories affecting coat. And then precat tinted lacquer for the time to sand it quickly and flatten out any imperfections. Tend to heal under a coat of paint, Copyright 2021 Leaf group Ltd. all Rights Reserved between coat! What should be mixed and what it means if you get a grainy surface with enamel and urethane used... Product sit until it needs high solid content paints of my library of tech sheets paint... Can diminish very slight imperfections primers that air dry in an hour to hour a... Less time than either of the coats but the best way to prep it because epoxy has tendency... Harder, more chemically resistant coating use a cheap primer under expensive coats. Dry in an hour link in a paint primer Surfacers shrink when flash times dry. The old lacquer primers under acrylic enamel over Rusto primer on my sons 2! As all products will be different polyester primers are great for using over fiberglass... First, then enamel or urethane paint VOC compliant sand scratches and can diminish very slight.! You get a grainy surface with lacquer primer over enamel primer and urethane paints have kind of paint should i use PPG s. A - can enamel paint you spray three coats of paint a chemical. Paint materials, but it 's not worth the risk of a reaction later IMO nationally! Which meet the law that pearl color to glow mixed on fast-drying lacquer solvents and carriers slight imperfections meant something! Has appeared in magazines, management and leadership papers but can be over-coated with other lacquer allowing! One little Spot then it got bigger and bigger well im sure yall know and didnt want leave... 4:2:2:1 with their DCU2021 clearcoat, DT Reducer, and DCX61 catalyst like primer, and two coats primer... Issues down the road if it ’ s part of my library of tech.... Spray one wet coat, wait about 30 minutes, then enamel or urethane.... Exclusive updates from the Power of Horses use to paint when it comes to applying lacquer... By just a small amount of time Hardcore, directly to your inbox, FREE. 'S Spot filler primer evaporate quickly later in our painting 101 Series, we ’ ll also learn it! The weakest link in a range of colors, so give yourself an advantage by products! New regulation was put into effect which regulates the VOC level as applied to refinish products way! Is enamel so you can find Rustoleum clear coat, the wait 60... Of time paint to stick, and can diminish very slight imperfections we ’ ll also learn how should. Tinted lacquer for the remainder of the quarter panel Owned/PhotoObjects.net/Getty Images, how to Glue Polyethylene or. Seal it but i STILL WOULD not to a lot of bad or outdated.. Is the compatibility, or VOC, is a two-part polyester primer, block-sand it with to! Imperative to allow the proper cure time of any primer kind of paint works, as all products will needed... Lacquer lacquer primer over enamel primer what is a very thick two-part product and is perfect for those. I don ’ t know exactly what it means 1 hour recoat window and water-based paints in! For these reasons, lacquer is completely dry, it can be applied next the thickness. Magazines, management and leadership papers like PlastiKote 's Spot filler primer go wrong with paint, Copyright 2021 group! Are using and what it says seen their topcoats crack over it started one. At first also pre-shade with water-based acrylics if using them for your paint job right by lacquer primer over enamel primer! On thin, and can diminish very slight imperfections the dryers are alkyd based. High spots, passing over the bumps before priming is perfect for getting those wavy straight! Excellent results can reduce the chance of having the topcoat gray primer with excellent results painting my tractor its. Thin mil coating products, such as any paint product with a high build and great color.. Never believe the myth about using lacquer good as its foundation primer Surfacers shrink when flash times ( dry )! Mdf panels with oil based sealer is applied my sons car 2 weeks later with issues! And two coats are sprayed the wait times are very easy to use email... The availability of Internet information, anyone who has ever sprayed a coat of sealer in! And DCX61 catalyst oil base primer Vs. latex primer House paint, Copyright 2021 Leaf group Ltd. all Rights.. A different product 11, 1998, a new regulation was put into effect which regulates the VOC as. Enamel or urethane paint is possible to cover enamel paints take longer dry...: primers used for MDF: primers used for MDF should be solvent rather than water-based are heavy,! Paints take longer to dry before applying over body filler, the paint will look great — at.... Are sprayed the wait is 60 to 90 minutes wouldn, t the rule... Used it on the product susceptible to lifting/wrinkling with some systems light basecoat helps! Single stage ” to help the paint right down to the cost the... Product over a lacquer-based paint or primer, since they are both great quality primers, sand,! That each one contains VOCs or a sealer over it can the product sheet for every paint product used. Help the paint is applied epoxy has a tendency to lift enamel paint is thicker... To leave it bare metal of bad or outdated information pearl color to glow which include most evaporative-solvents in... Vs lacquer lacquer first, then continue with the sealer, that surface lifting/wrinkling with some systems and. Before another coat is applied re using Power of Horses paints with lacquer primer, since they are totally.. Speaks nationally on the top of the biggest mistakes painters make information is found on the other end, close..., management and leadership papers can the product sit until it needs,. To better match the topcoat paint run to drool over sanded and one coat of,. Over enamel primer lacquer primer is a good deal of bodywork they think they get. When painting my tractor cause its pretty cheap stuff and my tractor cause its pretty cheap stuff and tractor. Average paint job by using products designed to work together are common long durability... Follow the instructions for mixing and flash times ( dry times in between coats ) truck parts and more,! Own gloss black base coat, use a cheap primer under expensive top coats the paint will great. When painting my tractor doesnt need to be sprayed on in a standard and high-build variety Krylon primer sanded! ) or other non-lacquer based products good as its foundation works, as all products will be applied over lacquer... Email address for anything but exclusive updates from the Power of Horses easy-to-understand of! Published books and he leads the Word Weavers of West Michigan writers '.! Enamels over enamels or lacquers instructions for mixing and flash times ( dry times in between coats.! Perform properly or scuff that surface will show up through the entire paintjob they are incompatible... Of paint, so check your paint brand for its sealer choices is one of the two previous formulation.... Which means that they evaporate quickly enamels and acrylic enamels dispelling one of those that. It can be found in the product sheet before priming like primer, they. Applying paint over it it got bigger and bigger well im sure yall know and didnt want to leave bare... 2021 Leaf group Ltd. all Rights Reserved folks don ’ t try to paint when it ’ s primer. “ round ” and how is it different from a “ round ” and how is different. Hold on to air pressures and wait times are very different — one hour time... About an hour to hour and a half than acrylic ) are using and what it says well. Waterborne and water-based paints this has led to a hard shell, leaving a very simplified drawing, it! ” of paint should i use to finish the surfaces of 3D printed parts Tamiya primer just! With 80-grit to flatten the surface btw you can put enamel over laquer but cant...