08-11-2015, 06:36 AM
Check out the MSDS on the GAF topcoat. Interesting. I would check thoroughly whatever product you choose by reading the Safety Data Sheet first, and use it as a guide for your coating choice. Also consider "breakdown" particulate of whatever you use from VOG, UV, etc.. Original panels were probably powder coated with an epoxy base application, thickness of powder coat determines "life" under testing of normal UV and climates, but not VOG.
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