Open basecoat is pourous just like primer and will allow moisture. Use a flattened clear on top of the basecoat to seal it up and keep your sheen. I'm unfamiliar with DuPont or else I'd give you better advice. SlowandLow63, Jun 11, 2008. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.