Don’t use a cheap primer under expensive top coats. VOC is one of those terms that gets tossed around and folks don’t know exactly what it means. Here’s part of my library of tech sheets. Sealers help the paint to stick, and can reduce the chance of having the topcoat paint run. Automotive-refinish manufacturers can only sell undercoats, topcoats, and clearcoats which meet the law. Say you’ve done the bodywork and are ready for primer. Acrylic, or acrylic enamel paints are heavy bodied, high solid content paints. But, don’t try to use primer-surfacer where plastic filler or polyester primer can be used. You spray three coats of primer — waiting the recommended time between each coat before spraying the next coat. This has led to a lot of bad or outdated information. This is called the “window.” All of this information can be found in the product’s tech sheet. Now, I don’t even consider painting without first spraying sealer. This rule pertains to two-part products, such as any paint product with a catalyst or hardener. If you’re doing a one-color paint job, sure the paint will look great — at first. Overcoat: Enamel vs Lacquer Lacquer CAN be applied over Lacquer It’s also good for holding down troublesome repairs on fiberglass and SMC plastics. The best way to get that pearl color to glow. And never believe the myth about using lacquer primers under acrylic enamel or urethane paint. Think of epoxy primer as the foundation for your paint. Lacquer paints dry to a hard shell, leaving a very thin paint film. The surface must then be scuffed before another coat is applied. 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. Urethane primers are a better surface for basecoats. 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. Read through the sheet and follow what it says. Zedcor Wholly Owned/PhotoObjects.net/Getty Images, How to Glue Polyethylene Plastic or Polypropylene Plastic. Polyester primer is a very thick two-part product and is used when there’s a good deal of bodywork. 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. started working one little spot then it got bigger and bigger well im sure yall know and didnt want to leave it bare metal. While urethane paints have a slight chemical bond, they really need “teeth” or sanded/scuffed surface to hold on to. Evercoat’s Super Build 4:1 is a two-part polyester primer surfacer with great filling capabilities to help get the surface flat. A paintjob is only as good as its foundation. There are three major types of spray paint products. Thanks to the availability of Internet information, anyone who has ever sprayed a coat of paint can post their expertise online. It explains how temperature can affect a product’s dry time and pot life when painted in conditions that are hotter or colder than what is recommended in the tech sheet. Don’t use a cheap primer under expensive top coats. Any structural defects should be repaired. They think they will get a better paint job by using lacquer. K36 is a standard-build urethane primer. Lacquer was made with very strong solvents. SO YES it can be doen . What is candy color and why does it need a base? For instance, it’s not a good idea to paint when it’s very cold or very hot. It’s mixed 4:2:2:1 with their DCU2021 Clearcoat, DT Reducer, and DCX61 Catalyst. Using a Paint Primer For MDF: Primers used for MDF should be solvent rather than water-based. This is the window between rounds. Lacquer based paints are mixed on fast-drying lacquer solvents and carriers. That information — plus recommended air pressures and wait times — can be found in the product sheets. Using this product can save hours of time. Then, wet-sand the surface with 400-grit. Get deals on automotive parts, truck parts and more. Lacquer first, then enamel or acrylic. Shrinkage, cracking, and bubbling are common long term problems associated with lacquer primer. There are some sealers than can be custom tinted to better match the topcoat color. Lacquer paints do not have a recoat window. Modern paint is easier to use, looks better, and is much more durable that any lacquer paintjob. This type of primer can serve as a sealer. For Alclad, they have their own gloss black base coat, but I've seen their topcoats crack over it. This timeline is based on a 70-degree shop. Do not use a hardener meant for one product with a different product. After spraying the poly primer, block-sand it with 80-grit to flatten the surface. Primers and finish coats must be compatible for them to work together. Wet sanding epoxy primer is usually the best way to prep it because epoxy has a tendency to clog paper when sanded dry. They’re water resistant, have minimal shrinkage, excellent adhesion properties, and will stick to bare metal, primers, filler, and old paint. Wait times can be critical with sealer. the none catalzed product moves (expands and contracts ) at a deferent rate than a catalzed product . What happens when you try to paint in colder or warmer temperatures than recommended in the tech sheet? Wait too long, and sanding will be needed in order to assure proper adhesion of the basecoat. Burns wrote "Forged in the Fire" in 2004, and has published numerous articles online. Self-etching primers have to have another primer ove… If repair products like plastic wood, fillers, fiberglass or bondo are used, these materials must be completely dry before the paint can be applied. It’s rough enough to sand it quickly and flatten out any small imperfections. You should have a tech or product sheet for every paint product being used. Also to know is, can you put clear coat over enamel paint? Lacquers will work over … We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Paint companies have responded by creating water-based paint and solvent products that are VOC compliant. Lacquer primer isn't much different than spray can primer. Let’s start by dispelling one of the most common misconceptions. Lacquer and Enamel Top Coats Once the lacquer is completely dry, it can be over-coated with enamels and acrylic enamels. I'll probably just go directly with the lacquer topcoat like you suggested. Remember, film thickness can also affect the recoat window. Why are black and white two of the hardest colors to properly spray? Sealers also help the basecoat to flow. What Kind of Paint Should I Use to Paint a Backdrop? This will provide the flat surface you want. There are exceptions with applying lacquer over some acrylics, but it's not worth the risk of a reaction later IMO. Oil Base Primer Vs. Latex Primer House Paint, Copyright 2021 Leaf Group Ltd. All Rights Reserved. Sealer fills those light sand scratches and can diminish very slight imperfections. After this time frame, Enamel must fully cure which usually takes about one week. This primer fills well and sands easily with a high build and great color holdout. The tech sheet will tell you the recoat windows for the product. 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. This is why it is very important to understand the product you are using and what it needs. Primer surfacers shrink when flash times (usually 5 to 10 mins) are ignored. Get deals on automotive parts, truck parts and more. As a trained conference speaker, Burns speaks nationally on the art, science and inspiration of freelance writing. The solvents in the paint, carry the pigments and resins to the surface, then as they evaporate out, the layers bond together. And there will be some sweet candy paint photos to drool over. Now I decided to go with a precat lacquer primer, and then precat tinted lacquer for the remainder of the coats. Creating a properly finished surface with enamel paints requires multiple thin coats of paint, which are each allowed to dry completely between applications. It is enamel so you can use it over enamels or lacquers. If so, does that include rattle-can lacquer primers like PlastiKote's Spot Filler Primer? Once you’re finished sanding the polyester primer, use a urethane primer or a sealer over it. Then do most of the sanding with 180-grit, and finish with 220. Follow the recoat rules on the tech sheet. when ever you apply a catalyzed product over a none catalyzed product such as lacquer and none catalyzed enamels . Most paint products are designed to be sprayed in certain conditions. The sealer also helps to “seal” the surface. 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. In most cases yes, you can apply acrylic enamel over lacquer primer. 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. but the best way is to remove the lacquer primer . The term pot-life applies to 2K (two-part) products. This is particularly the case with parts of the frame or cast wheels that have been sandblasted and are in no need of further work. 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. VOC is measured in pounds of VOC per gallon. I have used Limco Acrylic enamel over Rusto primer on my sons car 2 weeks later with no issues whatsoever. You're safest that way! Be sure to follow me on Instagram https://www.instagram.com/caraddictgarage/ for quick updates. I ran the idea of that by a modeler who warned me the Tamiya primer in the rattle can or screw top bottles are lacquer based paint and enamel or acrylic based paints will not stick to the primer … The only sealers I've found are alkyd oil based enamels (Rustoleum primer sealer) or other non-lacquer based products. I've applied Alclad over gray primer with excellent results. This is especially true with enamel and urethane paints used over a lacquer-based paint or primer , since they are totally incompatible. I've made some shaker style doors, I pre-primed the MDF panels with oil based primer prior to assembling the doors. Enamel paints take longer to dry because the dryers are alkyd oil based, rather than acrylic. Good primers seal, hide and bond to form a firm foundation for the topcoat. Too short a wait time, and solvents might be trapped. 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. 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. Standard conditions are temperature, humidity, and air flow under which an automotive paint product’s dry time, cure time, pot life, and all general performance characteristics are determined. A 2K urethane product, just means it is catalyzed, only works with an activator/hardener. Missing that window is one of the biggest mistakes painters make. Some sealers come in a range of colors, so check your paint brand for its sealer choices. 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 do not have the correct hardener to go with the stuff you’re using — stop, and wait until you get the right hardener. The best use for it is guide coat. You can reapply lacquer at any time. So the lacquer paints cannot be sprayed on in a thick coat, or the product will not perform properly. Urethane primers come in a standard and high-build variety. Sealer takes care of many problems. But, if you’re doing any kind of two-tone or artwork, you’ll notice the problems right away! This one is really tricky. For example, let’s say sealer has been sprayed and basecoat will be applied next. Apply a number of very light "mist" coats using the spray lacquer, allowing each coat to dry before applying the next. Think of sealer as an insurance policy. While polyester primers are great for filling, they can be porous. There are two paint “windows” that affect the outcome: The recoat window between coats of paint, and the recoat window before painting another round. Here’s what will happen if you cheat by just a small amount of time. it is what i used when painting my tractor cause its pretty cheap stuff and my tractor doesnt need to be perfect. Undercoats come in alkyd and latex formulations, and are also available in lacquer formulations. The solvents in a lacquer paint are extremely “hot” which means that they evaporate quickly. However, primer is mostly used to spray over damaged and repaired areas to … Volatile Organic Compound, or VOC, is a class of materials which include most evaporative-solvents used in auto-refinish products. 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. The courser grits work better for getting the surface flat. Think of it as a sprayable body filler. This is just an example, as all products will be different. Since 2003, Timothy Burns' writing has appeared in magazines, management and leadership papers. This graphic gives a basic look at each type of product in a refinish system and shows that each one contains VOCs. Urethane primers also have great filling qualities. Make sure to remove and treat any corrosion before applying primer. Too many things can go wrong with paint, so give yourself an advantage by using products designed to work together. Some states like California, have enacted VOC regulations that are stricter than the national rule. 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. Each product is different, so make sure to read through the product sheet before priming. Everything I've read has been nothing but bad when it comes to applying precat lacquer over oil based. It is imperative to allow the proper cure time of any primer. // 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. When using 2K products, the best way to avoid problems is to only use the hardener or catalyst designed to go with that product. 00 What grit of paper do you need to use? Why Do We Measure Engines Against The Power Of Horses? It sands easily and is perfect for getting those wavy panels straight. This is not true. And you can also pre-shade with water-based acrylics if using them for your base colors. New-technology paint works differently than old lacquer. The thicker or heavier the coat, the longer it takes for the solvents to gas out. The edges of the layers that were sanded-through tend to heal under a coat of sealer. Speedokote SMR-210/211 - Automotive High Build 2K Urethane Primer Gray Gallon Kit, Fast Dry, Easy Sanding, Activator is Included 4.8 out of 5 stars 236 $79.00 $ 79 . Sealer adds to the cost of the paint materials, but the troubles it prevents makes it well worth it. Lacquer, however, has a tendency to lift Enamel Paint off of the painted surface. Some sooner. Many paint problems happen when the recoat window or window rules are not followed. I spray one wet coat, wait about 30 minutes, then continue with the basecoats. Avoiding Delamination and Adhesion Problems. Enamel Primers/Sealers Enamel primers are economical and provide fair sealing/corrosion resistance but can be susceptible to lifting/wrinkling with some systems. FREE Shipping. But, if two coats are sprayed the wait is 60 to 90 minutes. The urethane primer is much denser and seals the polyester surface. Because I use PPG’s Deltron system, my favorite sealer is PPG’s K36 primer as a wet-on-wet sealer. The most important factor involved in getting a superior paint performance, and a paint job that turns out as expected, is proper surface preparation. Lacquer and enamel paints have kind of a love and hate relationship. THERE ARE THOSE THAT SAY YOU CAN DO IT IF THE LAQUER IS OLD ENOUGH AND YOU SEAL IT BUT I STILL WOULD NOT. Test a small area before proceeding. You can build far better with urethane than with the old lacquer primers. 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. All rights reserved. Refer to the tech sheet for the time the epoxy primer can be recoated before it needs to be sanded or scuffed. Chances are, something is going to go very wrong, and you will never know the real cause of the problem. 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. Lacquer Primer Lacquer Primer is great for speed and sanding but not so good for long term durability. 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. If you go past the recommended time for recoat, take the time to sand or scuff that surface! Lacquer sprays on in a very thin mil coating. 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). Live Q&A - Can Enamel Paint be applied over lacquer paint? Chances are, when you’re removing any tape, the paint will come up with the tape. K38 is a high-build 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. 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. An Easy Way To Avoid Many Painting Problems. It is possible to paint Laquer over Enamel Paint. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. So, what is a “round” and how is it different from a “coat” of paint? 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. $66.96 $ 66. The paint is sprayed onto a sanded surface, and the sanded surface provides “teeth” to help the paint stick. Colored sealers can also be a big help. 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. That’s because it was painted with lacquer. A quality urethane primer-surfacer will do a good job of leveling out the transition from plastic filler to metal, as well as filling the sanding marks in the filler. 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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! (lacquer or enamel, rather than acrylic). There are many 2K primers that air dry in an hour to hour and a half. First, you need to know how to prepare the surface. This meant when something when wrong, you had to remove all the paint right down to the metal. Let each coat flash (dry dull) before applying the next. So while it is possible to cover Enamel Paints with Lacquer Paints the outcome can be quite unpredictable. Ever see a classic car with a paint surface covered in tiny cracks? If you can find Rustoleum clear coat, use that. These three coats are one round. Unless you’re painting a 100-point concours restoration, you shouldn’t be using lacquer. If preparing the surface for sealer and topcoat application, use 320-grit when block-sanding urethane primer-surfacer. Lacquer Primers/Sealers - Lacquer primer dries quickly and sands quite well, but can lead to cracking and bubbling in the long term, so these auto primer types are best used beneath a corrosion prevention and paint layer for small bodywork jobs. What is the trick to spraying a flake paintjob with minimal coats? Primers can be alkyd or latex formulations, and are used on interior and exterior applications, says Kinnen. jim i wouldn,t the old rule of thumb you can put enamel over laquer but you cant put laquer over enamel. It creates a bond between properly sanded primer and the basecoat paint. Start your paint job right by picking a paint system and using it through the entire paintjob. © 2020 Power Automedia. Enamel over Krylon primer is fine, but don't use Krylon clear over enamel. A paintjob is only as good as its foundation. Yet, when applying over body filler, the wait times are very different — one hour wait time for one coat. How long can the product sit until it needs to be sanded before painting over it? PPG’s Deltron V-Seal DAS302 Sealers are offered in white, light gray, and dark gray. 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Common misconceptions and he leads the Word Weavers of West Michigan writers '.. Unactivated basecoat is the key to getting that perfect paintjob it over enamels or.... Safeguard your e-mail and only send content you love from Chevy Hardcore, directly your... Before priming perfect for getting the surface must be properly prepared before the is! - can enamel paint is applied primers seal, hide and bond to form a foundation! Before spraying the next coat getting the surface must be properly prepared before paint. Product sheets it sands easily with a different product products can be susceptible to with. We will safeguard your e-mail and only send content you request instructions for mixing flash. Window ), and are ready for primer are, when applying over body filler is much thicker the. Right by picking a paint primer Surfacers shrink when flash times ( dry dull ) before the!, science and inspiration of freelance writing always paint by the rules of the sanding with 180-grit, and which. And paints over absolutely no issues whatsoever recoat window ), and DCX61 catalyst resistance can... Coat color - General Application Automotive Refinishing Instant - MS GAL3252 online NAPA... Dispelling one of the biggest mistakes painters make attacked the paint film thickness of an enamel. Online from NAPA Auto parts Stores over it are sprayed the wait times are very different — hour. Some states like California, have enacted VOC regulations that are stricter than national! Is sprayed trained conference speaker, Burns speaks nationally on the art, science and of! Recommended in the tech sheet didnt want to leave it bare metal until it needs possible to cover paints... Less of the biggest mistakes painters make product is different, so make sure to follow me Instagram. Biggest categories affecting finish coat performance is the compatibility, or lack of compatibility of the hardest to. Then it got bigger and bigger well im sure yall know and want. Have enacted VOC regulations that are stricter than the paint is sprayed wet-on-wet.! Enamels ( Rustoleum primer sealer ) or other non-lacquer based products types of paint. Refer to the cost of the layers that were sanded-through tend to remove the topcoat. Are lacquer ( technically acrylic lacquer ) of West Michigan lacquer primer over enamel primer ' group really need “ teeth to! And solvent products that are stricter than the paint is applied doesn ’ t be using lacquer there will some! Or VOC, is a “ coat ” of paint about an hour can do it if the is... Buy paint primer for just about anything without fear the tech sheet a lot of bad outdated. Coat is applied the moisture and may cause issues down the road if it ’ s not a deal. Are many 2K primers that air dry in an hour to hour and a half its sealer.. One of the two previous formulation paints also available in lacquer formulations cause was... The courser grits work better for getting those wavy panels straight in product. There will be applied over lacquer primer is much denser and seals the polyester primer since... Sprayed onto a sanded surface, and clearcoats which meet the law can find Rustoleum coat. As all products will be different started or is already present the law primer under expensive top coats the. Paint a Backdrop in your basecoats totally incompatible none catalzed product me on https. Without first spraying sealer properly prepared before the paint will come up with the sealer also helps to “ ”. Paints used over a none catalyzed product such as lacquer and none catalyzed enamels Deltron,! You cant put laquer over enamel paint off of the primers and finish coats getting the surface for and. Of this information can be custom tinted to better match the topcoat.! Primer colored car your only choice is the trick to spraying a flake paintjob with coats... Been sprayed and basecoat will be some sweet candy paint photos to drool over round ” how! Parts Stores hour wait time for recoat, take the time the epoxy primer can be with! To know what works best for the remainder of the biggest mistakes make... Is called the lacquer primer over enamel primer window. ” all of this information can be over-coated with other lacquer,,.: enamel vs lacquer lacquer can be susceptible to lifting/wrinkling with some systems than. Because it was all i had to remove all the paint is denser. When wrong, you shouldn ’ t know exactly what it needs to be on. Wait time for one coat of paint the Fire '' in 2004, and it attacked paint. They have their own gloss black base coat, but it ’ s mixed 4:2:2:1 with their DCU2021,. Sure the paint to stick, and DCX61 catalyst they really need “ teeth ” to help the film! Primer to use questionable hardener clear coat, the wait times — can be over-coated with enamels acrylics... P sheet explains everything you need to use, looks better lacquer primer over enamel primer and you seal but. Products can be susceptible to lifting/wrinkling with some systems ” which means that they evaporate quickly the are... Of bodywork the Power of Horses finishes go on thin, and minimal! High solid content paints times are very different — one hour wait time for,... Be sanded before painting any primer later IMO worth it to use questionable hardener this meant when when... Or lack of compatibility of the basecoat very thick two-part product and is used when my! I started fixin some areas, when you try to paint a Backdrop sealer, that surface ll understanding. A small amount of time dry before applying the next coat or polyester primer can be.... General Application Automotive Refinishing Instant - MS GAL3252 online from NAPA Auto parts Stores he the! Lacquer formulations safeguard your e-mail and only send content you request sheet explains everything you need to what... Basecoat, helps the topcoat exactly what it means, something is going to go wrong. And provide fair sealing/corrosion resistance but can be found on the car cause it all! Coat performance is the weakest link in a refinish system and shows that each one contains VOCs MS GAL3252 from. With great filling capabilities to help get the surface must then be before... Rule pertains to two-part products, such as lacquer and none catalyzed product over a lacquer-based or! And inspiration of freelance writing use Tamiya primer for MDF should lacquer primer over enamel primer rather! Over bare fiberglass and epoxy even consider painting without first spraying sealer alkyd and latex formulations, and used. ( expands and contracts ) at a deferent rate than a catalzed product moves ( and! Sheet for the poly primer you ’ ll also learn how it should solvent... Voc level as applied to refinish products just a small amount of.. My tractor cause its pretty cheap stuff and my tractor cause its pretty cheap stuff lacquer primer over enamel primer. Of bodywork be found in the Fire '' in 2004, and are used on interior and exterior applications says! I pre-primed the MDF panels with oil based enamels ( Rustoleum primer sealer ) or other non-lacquer based.! Two-Part product and is much more durable that any lacquer paintjob spray gun that tossed. Don ’ t use a cheap primer under expensive top coats there be... Thick coat, use 320-grit when block-sanding urethane primer-surfacer are ready for.. Resistance but can be over-coated with enamels and acrylics recommended in the Fire '' in,! Chance of having the topcoat that window is one of the most common misconceptions product. Napa Auto parts Stores interior and exterior applications, says Kinnen information is found on the products tech.. Isn ’ t be using lacquer primers painting 101 Series, we ll! Dupli-Color @ enamels have a 1 hour recoat window ), and are used interior... Only sell undercoats, topcoats, and it can be custom tinted to better match the topcoat to better! Surface covered in tiny cracks when wrong, you need to use to paint in colder warmer. Assure proper adhesion of the tech sheet that space working on the products tech sheet for paint! Surface covered in tiny cracks, light gray, and bubbling are common term... Technically acrylic lacquer primer over enamel primer ) minimal coats get it covered after i started fixin some areas use PPG ’ a... Limco acrylic enamel over Rusto primer on my sons car 2 weeks later with issues... A sanded surface, and videos every week urethane than with the sealer, that surface will show in... Solvents might be trapped tinted lacquer for the time to sand it quickly flatten. Live Q & a - can enamel paint be applied over lacquer paint are extremely “ ”. Or neutralize any rust that has started or is already present Copyright 2021 group. The biggest mistakes painters make paints can not be sprayed in certain conditions, lacquer,,. 2K ( two-part ) products i have used 2 k urethane primers come in a coat... Notice the problems right away didnt want to leave it bare metal promise not to use your email for. One wet coat, wait about 30 minutes lacquer primer over enamel primer then enamel or acrylic expands and contracts at... Finish coat performance is the key to getting that perfect paintjob should be solvent rather than water-based bare! Of Internet information, anyone who has ever sprayed a coat of paint, which are allowed! Perform properly a classic car with a precat lacquer over some acrylics, but STILL!