Brass Door Knobs – The old houses are known to have unwanted paint on knobs of existing bronze doors. During years of repainting the doors, inexperienced painters get paint on the brass surface while painting around the doorknob. The paint is either oil based or water based. If it is an old house, the paint is usually oil based and will have to be remove with a chemical remover.
If your water-based paint, you can use mineral spirits or paint thinner. But chemical remover is the easiest and fastest solution to remove both types of paint. Remove the brass door knobs from the door using a flat head or a hex head screwdriver. Set up a tarp and put on goggles, rubber gloves, and a respirator. Apply chemical stripper to the painted areas of the knob with a brush. Read the label of the chemical paint remover to see how long it will take for the chemical reaction to take place.
Watch as the old paint begins to bubble and lift the brass door knobs surface. Clean loose paint with paper towels. Repeat until all the old paint layers are remove. Wash the knob with soap and water once all the paint is remove. Next, you will have to soak brass heavily tarnished with ammonia. Ammonia is caustic and may face degrading or bronze if left too long so be careful with the chemical reaction carefully.