According to Randolph's (Brodak's source) instructions,
"If blushing is an issue, wait until the humidity is under 50%".
Well Hurricane Ike was passing though, and even on the North Coast it was 100% humidity and rain for four days. But I have to make timing for a contest so I painted it anyway. It blushed like crazy. But when it got down to 45%, I gave the plane three coats of clear with a goodly dose of retarder and it all went away. Problem solved.
Note: I'm in a free fight club where light is right. So we don't mind seeing some light through the silk, paint, and maybe the wood.
One question:
Does anybody get a good gloss finish with Randolph clear sprayed on?
Most of my planes are OK with a matte or semi-gloss finish, but if I ever do want gloss, can it be done with Randoplh?