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Start by washing the metal object that you’re going to work on. Run the object under a stream of cold water and rotate it in your hand to get the entire item wet. Use a cloth to wipe the surface clean and remove any surface stains, dirt, or grime. If the object that you’re working with is greasy or oily, skip this step. Most commercial degreasers are skin and eye irritants. To avoid harming your skin or eyes, wear long sleeves and put on a pair of protective goggles. Grab a clean pair of rubber gloves and throw them on to avoid harming or irritating your skin. Get a commercial degreaser designed for kitchen, bicycle, or metal cleaning. Spray your degreaser over the surface of your object and give the degreaser 3-5 minutes to soak into your item. Then, take a clean cloth and scrub the degreaser into the item and remove any oily substances.  Pick up a degreaser at your local cleaning supply or home goods store. If you want to create your own degreaser, mix 3 tablespoons (43 g) of baking soda with 1 cup (240 mL) of warm water. Grab a dry, thick, scouring pad. Scrub your item using firm, circular strokes. Cover each section of your object 3-4 times to ensure that you’ve scrubbed any residual impurities away. Then, rinse and dry the item. Don’t use a scouring pad on plastics that you’re planning on spray painting. Simply rinse the item under water and wipe them dry.
Rinse and wipe your object with water and a clean cloth. Put on a pair of rubber gloves and wear protective eyewear. Use a degreaser to remove any oils or grease. Buff the surface of metal objects with a scouring pad.