Quote Originally Posted by jonbakerok View Post
I'd be concerned about a standard Polyurethane like Imron or Jetglo sticking to the latex-based primer.
Jon you're right, mixing products is always suspect, however one thing, Stewart's is not Latex-based, it's waterborne urethane, so once it's mixed and set it's as good as the solvent stuff (maybe even better in some cases). Much different than Latex based paints that will get soft and lift up after application.