From what I have been told Klass Kote will remain flexible enough for a fabric finish.

I hope it is as my Waco is going to be painted with Klass Kote. The 1st paint job on this plane was latex, I could not get a good gloss finish even after spraying Minwax gloss Polycrylic over the latex.

I am also going to add 3M vinyl pinstripe tape. If I decide to clear over the plane I will look into the urethane clear. Thanks for the tip!!
Anthony