Originally Posted by skaliwag
I used Krylon Interior / Exterior for years, worked well on the glue side. Seemed to meld with the glue. But they have changed the formula and it no longer works. Does not stick to the glue..
I've been painting a Multiplex Dogfighter parkie the last couple of days - EPO foam (expanded polyolefin, i.e. the bouncy tough stuff)). It is amazing how poorly paint sticks to it, it becomes like a 5mil shell around the airframe waiting to be peeled off. The laws of science never seem to change - for every good thing there is a negative.. lift/drag, paint/heavy, really cool tough EPO foam/doesn't glue/paint worth beans.. etc
Actually I was experimenting the other day, glassing some scrap EPO from a slightly damaged (ok, trashed) Parkzone model.. I got a reasonably aggressive bond of light glass to the foam using vinylester resin.
Oops the topic is drifting... sorry OP.