It's a different material and will very likely peel in a few years or less. If you want to learn how to paint your own car, this is the place! 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? Lacquer clear sucks in the sun but lacquer paint can be wetsanded and buffed to a mirroe finish rather quickly, then cleared over … However, for specialty applications like marine or automotive, there are additional considerations. The key to success is to make sure the oil has fully dried first. 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. Greg Williams: The best I’ve used is … 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. Second, polyurethane is not the best choice for painting over lacquer finishes. View Full Version : Urethane clear coat over lacquer paint? Question I'm a contractor with various guys coming and going over the span of this 4 year custom house we're building. 2k primer should go over lacquer primer with NO problems. General Discussion. That is why the light sanding or scuffing with 600 is all that is needed. Urethane lacquers lasted about one year under the same conditions. No degradation at all in the finish. 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. Lacquer provides the extremely intense gloss finish often used on many Asian-inspired or ultramodern furnishings. 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. Unfortunately, lacquer is also known to peel and discolor over time. Lacquer finishes have been used for centuries to give woodworking projects a tough, durable and water-resistant clear 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. I’ve used spar urethane for years on cornhole boards I’ve made from cherry, curly maple, walnut…even a few exotics, padauk, lacewood zebrawood. In short; you CAN apply a lacquer or a polyurethane over a Danish oil. Never paint any urethane over lacquer primer. When I use urethane, I keep it as thin as possible. Durability may be what you are looking for over vintage correctness. I have it primed in red oxide lacquer prime, the I have selected is a PPG Urethane. ... you'll have to spray a solvent-based clear over an Auto-Air basecoat. Post a reply. 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. 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. Urethane has many advantages. urethane over lacquer. Urethane over lacquer? 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. The HD color match paint is lacquer, yes, 1970s locquer. 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. Can you paint urethane over enamel primer? wildone | Posted in Finishing on January 29, 2002 12:48pm * We have a bookcase combination consiting of four units with a clear lacquer finish. The rattlecan finish was easy and cheap, but I would like something tuff. Wonder why it's so smooth? A quick guide to wood finishes - what to use, and when to use them. Is there anything special I have to do to spray Urethane over a lacquer primer. I just looked at a tank and fenders I did about 12 years ago and I was even amazed, they looked perfect. It will bubble or peel eventually. You didn't say if the urethane is clear. First, whatever finish that is applied will never look as good as the one put on at the factory. Manufacturers make polyurethane from synthetic resins … They are both relatively easy to apply and clean up. It's more flexible, arguably equal to or better gloss, and excellent UV protection when cleared. Click to see full answer. (Lacquer thinner often has ethanol as a dilutant.) I have also painted lacquer with a urethane clear. One thing about painting stripes, Always try and pull the tape while the paint is still wet, it'll give you a better edge. Instead, use an alkyd v And it works great…a few of the original cherry boards are over 10 years old. I just finished the body work on my 46 Hudson Pickup truck. 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. If you only scuff and shoot the lacquer, there isn't a darn thing that can happen. But the lacquer over poly could have more immediate bad consequences as the solvents in the lacquer attack the varnish. Make yourself at home...read, ask and answer ... could have been from a spray can we or the o/p has no idea. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use. As with all primers, proper surface preparation and weather conditions must be … Epoxy coatings darkened in four to six months. This means that you might be facing frequent maintenance, but it should be relatively easy to touch up . They are made of solid oak facings with the sides oak veneered plywood. Can he sand the lacquer and put a spar urethane over it without clouding the … Never put lacquer over urethane, Lacquer is a rock hard brittle paint and urethane is a flexible paint. This should make sense, because once dried, the oil has cured to a hard solid film surface, and stuff will now stick to it. Painting Urethane over Lacquer primer. There would be no problem spraying lacquer over the urethane, no problem what so ever. The clear coat of urethane supplies the acrylic enamel paint with a buffer between the paint and the elements. It is extremely durable and resistant to damage; however, over time it can begin to discolor and become scratched. 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