Bubbles are sometimes formed by moisture under the skin that cooks and the gas expands stretching the plastic skin. Another cause is the use of spray foam, which sits un-cured encapsulated by cured foam and glass, until one day it gets enough heat to cure and at that point it expands, creating a bubble. Depending on how your bubble was formed, you can do as Ameet suggested or you can cut the bubble and inject epoxy under the bubble, cover with waxed paper and add weight till cured. If the bubble was caused by spray foam, you might have to use a heat lamp to look for other uncured spots
Orma Southfield, MI KR-2 N110LR 1984 See Tweety at http://www.kr-2.aviation-mechanics.com See other KR spces at www.kr-2.aviation-mechanics.com/krinfo.htm
