The easiest way to clean bronze is to use a fine 3m scouring pad. These can
be bought in disc form. Mounted to an electric drill will blow the oxidation
right off. Yes, this will leave small fine scratches, but these can be
buffed out using conventional polishing compound bars with cotten buffs.
This is very fast. Then use Johnsons hard floor paste wax and polish. This
is important because the wax will displace the residual polish left in the
metal pores preventing induced oxidation from the polish and sealing the
metal will reduce the frequency of further polishing.
Steve

"Richard & Michelle Barnes" wrote in message
link.net...
Been given some nice older chocks. Should I clean them or just use them
in
their present greenish black condition?

Best method of cleaning? How long will they stay "pretty"?

Thanks,
Richard