Enamel or urethane can go over lacquer. Typically you don't put lacquer over anything else, because it will tend to wrinkle and lift the original coating. If you are set on doing this, try it in a small spot on the car first. I think you are asking for trouble on several levels...
Ill disagree ,Urethane cant go over laquer primer ,That I know and had issues........Ive heard laquer can go over urethane ,But I wouldnt reccomend it .
Hey, Lacquer is like a moody woman, it has a tough enought time jus' getting along with itself! If it doesn't lift the urethane, it will not be a long term marrage. Urethane expands and contracts differently than lacquer. Expect lengthwise cracks in the finish once the solvent flashes and the binder in the paint starts to harden. " Picture all experts as mammals "
Years ago I painted a '72 AMC Javelin with black laquer. I think the Javelin had enamel paint originally. I used a water-borne barrier-primer over the original paint, and then the laquer. But at the time, I was on a limited budget, and that car didn't warrant an expensive, time-consuming paint-job. Actually came out real nice though. Wet-sanded and buffed it out, and I was quite happy.
Carcrazy, Yeah, I don't disagree. In general, you should just make sure and use a tried and trued system on the car, preferably over clean bare metal. Anything else does have some inherent risk. In general though, the problems you would have with urethane over lacquer are different than what you have with lacquer over enamel or urethane. Almost without fail, if the paint question has to be asked, there probably needs to be someone with more experience involved. Talk with the local quality body shops and paint supply store before proceeding as paint mistakes are generally expensive mistakes! And the answer is still probably NO don't do it! Good luck with your project!
Hi... It may or may not work... Lacquer can be very forgiving, but I'm just curious why you would want to... Urethanes and polyurethanes are so much more superior...But that's just my opinion. Using a water based primer as a barrier, would be a plus. S.T.
Not a good idea, the lacquer will peel off like saran wrap once it breaks a edge. Don't intermix products. The Old Tinbasher
As a rule you can put anything over lacquer, but dont put lacquer over anything else. Biggest reason is enamels are a mechanical bond ( think tape ) and lacquer is a chemical bond...it needs to etch in to whatever it's over and that process will usually soften and wrinkle ( lift ) whats underneath. That being said if the urethane is oven baked you have a chance of it being hard enough not to lift, but then theres still the long term adhesion issues because of the lack of etching and surface tension differences with the two....bottom line...dont do it, it will end up being an expensive lesson.
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