I just bought a used low wing aircraft covered in Ultracote. covering the engine area is what I'm interested in advice about. My trainer was the same way as well as other areas on this low wing aircraft.

The fuse sides extend beyond the firewall to about 1" from the prop. The inside of the engine bay is doped or something and painted black. The covering is applied to the sides of the fuse and along the sides of this engine bay.

My question is: Where there is an exposed edge on the covering, where the covering meets the painted surface, the covering tends to lift in this area. I've tried CA but it doesn't really seem to work. Epoxy under *cote makes an ugly bubble for some reason.

What's the secret here? Is there some sort of rubber/plastic trim that I can use and glue over the exposed painted/coating edge?