Ok..here is my gameplan...clearcoat the frame with Randolph's clear nitrate...and then use to put on covering..polyester..silkspan..whatever...couple coats of the same thinned clear and then finish with Buytrate dope which Aircraft Spruce sells much cheaper than any LHS I have found
or....finish with the DupliColor Lacquer spray cans for a bigger variety of color
But here is a question..back in the day..I used AeroGloss..Pactra..nitrate dope and it was fuelproof..wasn't it..nothing ever came off..or was it treated some special way?
So many questions..so many products
Joe, you can use th eDuplicolor lacquers for your colors with out problem. What you are discribeing is the process I use. Randolph's nontautening tinted nitrate up through covering. Then tautening butyrate (Sig or Randolph) on the open bays to shrink it. Duplicolor filler/primer (usually), a blocking coat of anything BUT nitrate (!), in other words, Sig, Brodak, Randolph, or Duplicolor. This is *almost* white, but it is gray.
Then for colors I user what ever I have around. Sig, Randolph, Brodak, Duplicolor, in combinations.
Finally, clear with Dupont ChromaClear, Napa Econo Clear, or Sig Lite Coat.