RCU Forums - View Single Post - Problem with Ultracote wrinkling - help needed!
Old 05-07-2020 | 06:09 PM
  #4  
speedracerntrixie's Avatar
speedracerntrixie
My Feedback: (29)
 
Joined: Jun 2010
Posts: 9,709
Received 204 Likes on 175 Posts
From: Happy Valley, Oregon
Default

Typically this issue regardless of covering brand is balsa dust being left on the surface when the airplane is covered. The only real fix is to recover with proper surface prep.