Sun effects on Ultracote
It was 90 degrees today and 10 minutes in the sun loosened and wrinkled the Ultracote covered, balsa sheeted foam on my 30% Extra (again). I've tried BalsaRite, no- BalsaRite, ironing, heat gun and hand pressure, re-shrinking, pin-holing, and air squeegee out through channels at the edge. Colors are blue and white and the blue is worse. Looks great in the hanger but a trip to the field and I'm back home ironing again. Any suggestions are appreciated.