AjaxTheDog
New member
Not sure where a post like this belongs, so this is just a best guess for passing along some knowledge.
I bought a stainless-steel header for a car restoration project I was working on. The welds were unfortunately all tinged yellow from the heat generated when they were welded. I researched several methods of cleaning this off and arrived at a process which works quite well, and does not harm the rust resistance properties of SS like some other methods.
Using a 6V 6amp battery charger I attached the positive side to the work piece. I bought a stainless fender washer and made a crude “mop” using some cotton string, then attached that to the negative electrode. I dipped the mop in some dilute phosphoric acid (rust converter) and then touched the mop to the welded discolored area. After a few seconds the yellow discolor dissipated and I wiped it away with a paper towel.
I’m sure the header will discolor from heat over time, but at least it will start out all shiny and pretty! Here's before and after shots.
I bought a stainless-steel header for a car restoration project I was working on. The welds were unfortunately all tinged yellow from the heat generated when they were welded. I researched several methods of cleaning this off and arrived at a process which works quite well, and does not harm the rust resistance properties of SS like some other methods.
Using a 6V 6amp battery charger I attached the positive side to the work piece. I bought a stainless fender washer and made a crude “mop” using some cotton string, then attached that to the negative electrode. I dipped the mop in some dilute phosphoric acid (rust converter) and then touched the mop to the welded discolored area. After a few seconds the yellow discolor dissipated and I wiped it away with a paper towel.
I’m sure the header will discolor from heat over time, but at least it will start out all shiny and pretty! Here's before and after shots.
