What do I use to clean black pipe?

[Mark Wooden]

I clean my clamps with mineral spirits when they need it but to keep glue from sticking to them and from making spots, I rub a block of canning wax on the bars or pipe. Easy to use, stays on for a while and easy to brush off the surface of the glue up if some sticks, usually doesn't.

[Charles Lent]

I just wax the pipe or bars of my clamps with Johnson's Paste Wax. It also keeps the glue from sticking in the threads of my Bessey clamp bars (if I coat the thread notches well).

Charley