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Would you like to add information to this article? Interested in writing or submitting an article? Have a question about this article? Establishing the Recoat Window for Pre-Cat Finishes Question
Forum Responses
From the original questioner: Thanks for the response. I checked the sheet. It gives a minimum wait time to recoat, but I am looking for the maximum wait time. From contributor D: Actually, it's impossible to say, as it completely depends upon temperature. For example, I often shoot panels and then place them in the Arizona sun at 160F. At that temperature whatever is going to happen to the lacquer has happened in an hour. So re-scuffing is mandatory. However, you apparently are in a cold climate this time of the year, so the window could easily be as long as a day or even longer. I suggest you try a little test. Shoot a panel and let it dry for 6 hours, put a drop of lacquer thinner on it and see if it attacks the finish. If so, the next coat of finish should likewise be able to bond since after all, it's just resin in lacquer thinner. Then wait 12 hours and do the same test and then two days and do the same test. At some point the LT shouldn't have much affect on a catalyzed product. That's when you need to sand. Have you reviewed the related Knowledge Base areas below?
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