How to Polish Metal
To Polish Metal start by wash the components down and dismantle all the metal parts enabling full access to all the part that require polishing. I will use a degreasing agent with several brushes including an old tooth brush which I find extremely helpful. Once clean I will dry the parts ensuring the metal is completely dry.
Removing Scratches from the Metal
Before you can start to Polish the Metal, inspect the parts for damage such as scratches etc. To start with I will use a coarse metal sand paper to start with rubbing down and removing the scratches from the surface of the metal. Gradually work down to a fine grit metal sand paper working along the grain of the metal. One this is done and the scratches have been removed you are now ready to start polishing the metal.
Metal Polishing Cream
I use a Cream metal polish to begin with, rubbing the cream into the metal then buffing off with a clean soft cloth. If you have access to a drill of better still a bench grinder then you can take this a step further by using a several rubbing compounds and polishing wheels.
Before you use any fast turning wheels think safety first! Use safety glasses and also a partial mask. Polishing metal in this manner create fine air born metal shavings. You will also require a good thick set of gloves. Holding metal whilst being polished no only is a dirty process but because of the fiction caused with the fast turning wheels in turn heats the metal up to a high temperature.
Using Metal Polishing Compounds
Start off with a hard rubbing compound either brown or black on the course polishing wheel. Apply a small amount of compound to the rotating wheel. Apply the metal to the wheel not applying to much pressure. It is important to move the metal into different directions. Once you have completed this process move over to a softer wheel and also compound. Repeat the same process using but use a green compound. Then to give the metal that final polish and shine, move over to the very soft polishing wheel and use either the Blue or white polishing compound. Remember to keep turning the metal into different directions applying not to much pressure.
Once you have completed this process your metal should look like new. All that is left to do is remove any existing polishing compound using a clean soft cloth and some chalk powder.
For hard to reach areas of metal I use a small nib drill attachment using the metal polishing compounds in the same order as mentioned before.