Ron,
Superclean is great stuff. I have added to existing solutions, but feel that a fresh batch works better. I have used it primarily on plastic shells, It has blackened some aluminum parts for me like a horn that couldn't be removed from shell. I usually use it full strength with a small amount of very hot water. Your mileage may very. The aluminum horn that turned black was left in solution for a few days.. Hope this helps.
Jeff
