I recently purchased a can of your B-12 Chemtool Carburetor & Choke Cleaner #0117 to use on some delicate aluminum parts and just wanted to make sure it wouldn’t react in any way.
B-12 Chemtool Carburetor, Choke and Throttle Body Cleaner does not react with any metal, including aluminum. However, if the aluminum has a lacquer or painted coating on it, this coating will more than likely be removed.