Naprawiacz
Well-known member
Spike with a tarnish of tobacco smoke.Very difficult tarnish to remove,which over time causes micro pitting.Before cleaning, you can soften the object with acetone solvent.Cleaning ingredients: citric acid, baking soda, facade cleaner, a little water and a toothbrush.This is a very time-consuming technique.Working time about 5 hours.Facade cleaner can be substituted for dishwashing liquid or other heavy-duty cleaner.