[RadioSvit]

To clean the most abandoned chassis, I also use soda ash, and then a solution of ammonia. But it should be done in the fresh air, because there will be a terrible stench, and it is dangerous for the lungs.After cleaning, I wipe the chassis with machine oil for preservation. But if there is rust, it is best to remove it mechanically, because chemical converters can spoil wires, parts and contacts.