Originally Posted by
rumblefish
I just picked up a rusty bar myself. There is no way the wire brush will hurt it. The rust was hard to get off with just the brush, so I got a roll of paper towels and filled a spray bottle with vinegar. I then proceeded to spray one end of the towel so that it would stick to the bar. Then Wrapped the bar as tight as I could with the paper towel, then saturated that wrapped section with vinegar. I repeated this section (1 paper towels length) by section down the bar until the whole bar was wrapped in vinegar saturated paper towels. After this I wrapped ittightly in plastic wrap to prevent evaporation and compress the towel to the bar. After letting it sit for about 2.5 hours I removed it all. I used the soaked paper towels to wipe down the bar, A lot off rust came off with just the towels. The rest came off quite easily with wire brush dipping in simple green as I went ( but I'm sure water would have worked just as well).