Originally Posted by jcelect

I have a question of those that use the wet tumbling cleaning process for their brass? When using two dissimilar metals in the presents of water+chemicals it creates galvanic corrosion of the metals(to what degree?)! When you add critic acid to the water it reacts with the metals(copper, tin, zinc) at the molecular level weakening the metal. How many cleanings will it take to render your brass too weak for use due to case cracking or head separation? I have used corn cob media(unscented kitty litter) with NU-Finish car polish for years. The brass comes out like new and the polish also reduces the dust(greatly). I have 38 nickel brass in my bucket that has been cleaned so many times the Nickel plating is starting to wear off(25+ years).
My .02, jcelect