If you are restoring a Ford, you will need Manganese. For a GM or Chevy, you will need Zinc.
Do not sand or bead blast the parts until you are ready to place them into the bath/solution.
You can reuse the product several times. You can test the solution with a pool strip to check the PH level. Anything at 7.2 or higher should be replaced.
Hey Red rooster, not heard from you. What are your contact numbers. Mark Zachary 828-507-3148 mzac28717@aol.co,m