The ensolite on my 1974 Boler
has some rather large blisters, or bubbles. So, is it air, or water? I stuck a pin into the blister - and - nothing happened. The ensolite appears to have sealed itself around the blisters. Withdrawing the pin - again - the ensolite seems to have sealed itself, leaving the bubble unscathed. I suspect its air, but what has caused it to be there? My next great(?) idea is to acquire a hypodermic needle and suck the blister causing material out. Then, inject some contact cement and hope the stuff will stick the ensolite back to the wall, where it belongs. Any other suggestions, or comments - please, and thank you.