Hey guys im venturing down the path of using a car radiator and other cheap parts for a jerry rigged watercooling setup. after looking it up ive seen that a lot of people silver solder the fittings directly to the radiator or a pipe. my question is what are water cooling fittings made out of? i have access to a TIG welder and it would be a lot easier and quicker to use it instead of silver soldering. Google says that theyre made out of brass then get a coating (silver,black etc). Is this true?