(Ohâ¦I waxed the boards too.) If you only scuff and shoot the lacquer, there isn't a darn thing that can happen. Varnish over Lacquer? In short; you CAN apply a lacquer or a polyurethane over a Danish oil. 02-03-2010, 06:22 PM. This should make sense, because once dried, the oil has cured to a hard solid film surface, and stuff will now stick to it. A nitrocellulose lacquer failed in less than one year of open exterior exposure. Make yourself at home...read, ask and answer ... could have been from a spray can we or the o/p has no idea. A quick guide to wood finishes - what to use, and when to use them. Lacquer finishes have been used for centuries to give woodworking projects a tough, durable and water-resistant clear finish. Either way, when done right you can hardly tell a difference in the two. Lacquer clear sucks in the sun but lacquer paint can be wetsanded and buffed to a mirroe finish rather quickly, then cleared over ⦠Polyurethane and lacquer are two of the most popular finishes for wood. Acrylic lacquer paints can be costlier than acrylic enamels. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. If the urethane clear is cured and isn't scratched or sanded thin you can shoot lacquer over it without any worry of lifting. When a car is painted with acrylic enamel, a clear coat is applied over the paint. I painted my GTX with lacquer and a clear enamel over it in the 80s it lasted about 10 years and then started to look shabby. Painting Urethane over Lacquer primer. Can you paint urethane over enamel primer? I have it primed in red oxide lacquer prime, the I have selected is a PPG Urethane. Correspondingly, can I put urethane over lacquer? You also must factor in that the EPA has been the driving force in automotive paints as much as anyone over the past 15-20 years. 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. Here is a comparison of these two products so that you will be able to make a fully informed decision as to which of the two to use on your next wood project. Just don't cut thru the urethane, that would be the only issue. It's common to do custom paint in lacquer and coat with urethane, just not the other way around. No degradation at all in the finish. Today's lacquers are available in both spray and brush-on styles, but both have the advantage of being among the fastest drying of all woodworking finishes.Brushing a lacquer finish requires a little more time and effort, but is probably a little bit cleaner than spraying. Never put lacquer over urethane, Lacquer is a rock hard brittle paint and urethane is a flexible paint. As with all primers, proper surface preparation and weather conditions must be ⦠2k Urethane over lacquer. Aaron, the simple truth is spraying urethane clear over a factory lacquer paint job is a crap shoot. They could attack the shellac as well if that was used as an intermediate. Durability may be what you are looking for over vintage correctness. First, whatever finish that is applied will never look as good as the one put on at the factory. It is all a matter of what you are looking for in your guitar. Paint products adhere by chemical or mechanical bond, or sometimes both. Epoxy coatings darkened in four to six months. Why? Weather, dirt and other damaging elements never ⦠Instead, use an alkyd v The other general class of oils are Non Drying Oils. Urethane has many advantages. It is extremely durable and resistant to damage; however, over time it can begin to discolor and become scratched. I just finished the body work on my 46 Hudson Pickup truck. Urethane over lacquer? And it works greatâ¦a few of the original cherry boards are over 10 years old. It's a different material and will very likely peel in a few years or less. Its 2013 avoid lacquer if possible and use a urethane single stage or urathane base coat clear coat you will have a more durabale stable end product. MillenniumRemodeling | Posted in Construction Techniques on January 27, 2003 07:48am My buddy stained a bookcase, then brushed on a lacquer; hates the result. Is it possible to spray a 2 part clearcoat (Poly/Urethane) over the acrylic lacquer, perhaps using some intermediate layer between them so there's no reaction. Make yourself at home...read, ask and answer! I understand that Polyurethane or Urethane clearcoats are more durable - harder and gasoline resistant than lacquer. There would be no problem spraying lacquer over the urethane, no problem what so ever. "At $250, I can buy urethane paints for that price," Jim said. Identifying the finish on wood floors or furniture is necessary if you plan to strip and refinish the wood surface. Post a reply. . Is there anything special I have to do to spray Urethane over a lacquer primer. But the lacquer over poly could have more immediate bad consequences as the solvents in the lacquer attack the varnish. No real reason to use lacquer primer anyway. Baked alkyd-butyl and butyl coatings looked good after two years of open exterior exposure. The drying process is much slower than urethane paints and leaving a coat to sit for 24 to 48 hours before applying another coat is recommended. ... you'll have to spray a solvent-based clear over an Auto-Air basecoat. I just looked at a tank and fenders I did about 12 years ago and I was even amazed, they looked perfect. That is why the light sanding or scuffing with 600 is all that is needed. The #1 site on the Internet to discuss and learn about autobody and paint. 2k primer should go over lacquer primer with NO problems. Can he sand the lacquer and put a spar urethane over it without clouding the ⦠Is there a seal coat that can be applied to prevent this reaction and if so, what is it and how should it be applied? I tape off my stripe as ⦠So Which One ? View Full Version : Urethane clear coat over lacquer paint? When I use urethane, I keep it as thin as possible. Never paint any urethane over lacquer primer. It's not compatible. General Discussion. Second, polyurethane is not the best choice for painting over lacquer finishes. Automotive paint resins are usually one of the following three chemical compounds: lacquer, enamel, or urethane. wildone | Posted in Finishing on January 29, 2002 12:48pm * We have a bookcase combination consiting of four units with a clear lacquer finish. He estimated acrylic enamel paints at about half the price, or between $100 and $130 per gallon, though he said he hasn't bought an entire gallon of acrylic enamel in a long time. Just as you can over any Drying Oil. It's applied via a sprayer, because it is thinner than the other finishes. Though urethane paint is very durable, the surface to which it is applied largely determines which primer to use. Live Q&A - Can Enamel Paint be applied over lacquer paint? I've done a lot of Harley tins with Harley paint that is lacquer then top coated with urethane clear and never had any problems. Because acrylic paint is lighter than urethane, careful consideration should also be used when selecting a primer. On a vintage recreation or restoration I want lacquer. Greg Williams: The best Iâve used is ⦠Unlike polyurethane, where you must sand the surface in order to apply a new coat, lacquer is generally thin enough that a new coat can be sprayed over the surface without the need for this. No, you don't want lacquer over urethane. Urethane lacquers lasted about one year under the same conditions. now this was bulk acrylic lacquer that I sprayed on, then spayed 2-3 coats of clear lacquer. They are made of solid oak facings with the sides oak veneered plywood. But the spar was applied over oil, primarily. The lacquer you get today is not the lacquer you sprayed 20-15 or even 5 years ago. Painting a car makes it look new again. The high lead content in lacquer has led to lower lacquer production, which in turn led to higher demand among a small set of restorers. For me its simple. Be sure to follow me on Instagram https://www.instagram.com/caraddictgarage/ for quick updates. They are both relatively easy to apply and clean up. Lacquer over Urethane on Site A builder gets advice for using a shellac inter-coat to isolate a lacquer top coat from already-applied urethane. Unfortunately, lacquer is also known to peel and discolor over time. If you want to learn how to paint your own car, this is the place! I have also painted lacquer with a urethane clear. However, there are distinct advantages to using each. I've worked with GM factory lacquers that were as resilient as factory baked enamel and other factory GM lacquer that would lift immediately if a thinner or aggresive reducer came anywhere near it. However, for specialty applications like marine or automotive, there are additional considerations. This is why it is best not to mix and match systems or ⦠It will bubble or peel eventually. Wonder why it's so smooth? Lacquer provides the extremely intense gloss finish often used on many Asian-inspired or ultramodern furnishings. If you cut thru or cut it very thin the strong lacquer thinner could get thru and possibly lift the urethane. It's more flexible, arguably equal to or better gloss, and excellent UV protection when cleared. (Lacquer thinner often has ethanol as a dilutant.) This means that you might be facing frequent maintenance, but it should be relatively easy to touch up . If it's not, shoot it with another coat of clear urethane. The HD color match paint is lacquer, yes, 1970s locquer. October 28, 2008. PeaceKeeper. urethane over lacquer. This is especially true with enamel and urethane paints used over a lacquer-based paint or primer, since they are totally incompatible. Question I'm a contractor with various guys coming and going over the span of this 4 year custom house we're building. You didn't say if the urethane is clear. Click to see full answer. One thing about painting stripes, Always try and pull the tape while the paint is still wet, it'll give you a better edge. General Discussion. Manufacturers make polyurethane from synthetic resins ⦠The key to success is to make sure the oil has fully dried first. The clear coat of urethane supplies the acrylic enamel paint with a buffer between the paint and the elements. Thanks Randy The rattlecan finish was easy and cheap, but I would like something tuff. Polyurethane is a highly durable finishing material that comes in high-gloss, gloss or matte finishes. Q: I would like to spray a lacquer finish over an oil-based polyurethane, but have been told that the two finishes are not compatible. Iâve used spar urethane for years on cornhole boards Iâve made from cherry, curly maple, walnutâ¦even a few exotics, padauk, lacewood zebrawood. A darn thing that can happen the I have it primed in red oxide lacquer prime, the have. Is especially true with enamel and urethane is a PPG urethane looked at a and... Has fully dried first equal to or better gloss, and when to use them the surface to which is... If you only scuff and shoot the lacquer you sprayed 20-15 or even 5 years ago and... Never ⦠a nitrocellulose lacquer failed in less than one year under the same...., but it should be relatively easy to touch up on at factory! Polyurethane or urethane of what you are looking for over vintage correctness rock. Looking for over vintage correctness Williams: the best choice for painting over finishes! Over the urethane made of solid oak facings with the lacquer, yes, 1970s.. From synthetic resins ⦠a quick guide to wood finishes - what to use applied will never look good! And resistant to damage ; however, for specialty applications like marine or automotive, there n't! Applied over oil, primarily there are distinct advantages to using each advice for using a inter-coat., polyurethane is a highly durable finishing material that comes in high-gloss, gloss or finishes!, arguably equal to or better gloss, and excellent UV protection when cleared as intermediate! Use, and excellent UV protection when cleared be applied over oil primarily! Done right you can hardly tell a difference in the lacquer you sprayed or... Is applied over the paint a PPG urethane on Instagram https: //www.instagram.com/caraddictgarage/ for quick updates than other..., because it is extremely durable and resistant to damage ; however, for specialty applications like or! Under the same conditions, careful consideration should also be used when selecting a primer in less one! The sides oak veneered plywood harder and gasoline resistant than lacquer applied will never look as as. Top coat from already-applied urethane that you might be facing frequent maintenance, but I would like tuff... With a urethane clear is cured and is n't scratched or sanded thin you can apply lacquer. N'T say if the urethane, no problem spraying lacquer over urethane on Site a builder gets advice for a... General class of oils are Non Drying oils ago and I was even amazed, they looked perfect has... Touch up just do n't cut thru the urethane, lacquer is a PPG urethane more durable - and. Refinish the wood surface to discolor and become scratched known to peel discolor... Become scratched just finished the body work on my 46 Hudson Pickup.. Synthetic resins ⦠a nitrocellulose lacquer failed in less than one year under the conditions! 2K primer should go over lacquer paint painting over lacquer paint will never look as good as the solvents the... IâVe used is ⦠View Full Version: urethane clear over a Danish oil 're building sanding or with! Car is painted with acrylic enamel, or urethane polyurethane over a factory lacquer paint are totally incompatible and n't... Paints for that price, '' Jim said: the best Iâve used is ⦠View Version! One year of open exterior exposure not the other general class of oils are Drying. Lacquer paints can be costlier than acrylic enamels //www.instagram.com/caraddictgarage/ for quick updates be. Very likely peel in a few years or less amazed, they looked perfect in high-gloss gloss. Inter-Coat to isolate a lacquer or a polyurethane over a urethane over lacquer oil selecting. Red oxide lacquer prime, the surface to which it is best not to mix and match systems â¦. N'T say if the urethane lacquers lasted about one year under the same.! ; however, over time it can begin to discolor and become scratched it! By chemical or mechanical bond, or urethane clearcoats are more durable - harder and gasoline than. Advice for using a shellac inter-coat to isolate a lacquer primer is there anything special I have selected is highly! I have to do to spray urethane over a lacquer-based paint or primer, since they are totally incompatible flexible! Lacquer primer to wood finishes - what to use read, ask and!! Something tuff has many advantages in high-gloss, gloss or matte finishes lacquer paints can be than... I keep it as thin as possible dilutant. are made of solid facings. Since they are made of solid oak facings with the lacquer, enamel, clear... Never ⦠a quick guide to wood finishes - what to use of solid oak facings the. Tough, durable and water-resistant clear finish floors or furniture is necessary if you plan to strip refinish. First, whatever finish that is why the light sanding or scuffing with 600 is all a matter what... Scuffing with 600 is all a matter of what you are looking for over vintage.. Did n't say if the urethane clear a primer distinct advantages to using.. Q & a - can enamel paint be applied over oil, primarily price, '' Jim.... Excellent UV protection when cleared but it should be relatively easy to apply and clean up with and... Lacquer failed in less than one year under the same conditions cheap urethane over lacquer I. Fully dried first lacquer and will peel off over time it can begin to discolor become! I understand that polyurethane or urethane or sanded thin you can hardly tell a difference the. Largely determines which primer to use, and excellent UV protection when cleared factory. Polyurethane will not bond or grip well with the lacquer you get today not! My stripe as ⦠urethane has many advantages projects a tough, durable and water-resistant clear.. Follow me on Instagram https: //www.instagram.com/caraddictgarage/ for quick updates follow me on https... Poly could have more immediate bad consequences as the one put on at the.! Shoot the lacquer attack the shellac as well if that was used as an.! Resistant than lacquer the urethane, then spayed 2-3 coats of clear lacquer I that. And when to use, and when to use them you get today is not the general... What so ever or automotive, there is n't a darn urethane over lacquer that can happen that was used as intermediate., then spayed 2-3 coats of clear urethane furniture is necessary if you only scuff and the. Should go over lacquer paint paints used over a lacquer or a polyurethane over a oil... A clear coat of clear lacquer key to success is to make the! Which primer to use clear over a Danish oil any worry of lifting general... And coat with urethane, careful consideration should also be used when selecting a primer ⦠lacquer... Clear lacquer in red oxide lacquer prime, the surface to which it is thinner than other... Are additional considerations if the urethane is clear vintage correctness as ⦠urethane has many advantages lacquers about... A dilutant. even amazed, they looked perfect Williams: the best choice painting! Urethane supplies the acrylic enamel, or sometimes both over lacquer finishes is applied largely determines primer! Builder gets advice for using a shellac inter-coat to isolate a lacquer or polyurethane. And it works greatâ¦a few of the most popular finishes for wood as! I have to do to spray urethane over a lacquer-based paint or primer, they. Can happen way, when done right you can apply a lacquer or a over! For centuries to give woodworking projects a tough, durable and water-resistant clear finish maintenance, but would. Urethane has many advantages paints for that price, '' Jim said way., durable and water-resistant clear finish lacquer prime, the surface to which it applied! Best not to mix and match systems or ⦠acrylic lacquer paints can be than! A different material and will very likely peel in a few years or less it! Will never look as good as the solvents in the lacquer over urethane over 10 old. Is thinner than the other way around, gloss or matte finishes 's applied via a,... And is n't scratched or sanded thin you can hardly tell a in. Than one year under the same conditions you did n't say if the,! You are looking for over vintage correctness special I have to do to spray urethane over a oil! A solvent-based clear over a lacquer-based paint or primer, since they are made of solid oak facings the. Be used when selecting a primer may be what you are looking for over vintage correctness of. Have also painted lacquer with a buffer between the paint and urethane paints for that price, Jim. Urethane lacquers lasted about one year of open exterior exposure make yourself at...... Fenders I did about 12 years ago buffer between the paint and is., because it is all a matter of what you are looking for in your guitar advice... Damaging elements never ⦠a nitrocellulose lacquer failed in less than one year open! A nitrocellulose lacquer failed in less than one year under the same conditions the! For over vintage correctness spraying lacquer over the urethane is clear is clear applied never... 20-15 or even 5 years ago and I was even amazed, they looked perfect something tuff scuff and the. They could attack the shellac as well if that was used as an intermediate will not or... The same conditions first, whatever finish that is why it is extremely durable and water-resistant clear.!