I can spray the cases without issues, it must be either a better PC method. Being the cases are textured there is more bonding surface than a smooth surface being coated. But I keep BK away from paint and powder coating.
Just had the lower legs powder coated. we using brake cleaner to clean out the inside of the leg? and brake cleaner got on the powder coating and destroyed it is this normal
I would only use compressed air for that application or maybe flush with something harmless like Simple Green, brake cleaner is some aggressive $hit and is a recipe for a disaster.
Brake cleaner eats almost any finish bud. Soap and water works best on my powder coated stuff. I also use cheese cloth so you don't put tiny scratches in the powder