Can anyone tell me how they get ultracote to stay down and not wrinkle in the sun. I am finishing an airplane and every time I put it in the sun its a mess. The lighter colors all have no problem the only color I seem to have found that does this and of course it is on my airplane is the blue. I can take it back in and re-heat and it shrinks but the problem I have is once I put on vinyl graphics, that will mess the whole thing up. I am over sheeted wings using med to med high heat and I try using only an iron to put it down. The only thing that I use the heat gun for is to re shrink. My only thoughts are you want to try and get the covering as hot as it will ever be when you apply it, so it reaches its max shrinking point, but soon as I put it in the Florida sun, it bubbles right up...Its driving me nuts!!!!

Any suggestions?

Pete