Supplier of white metal

depending on how much you want (and I'm assuming you are going to do some casting with it, since you don't specify a size)

Try a car boot sale - you could probably pick up a couple of kilos in various sizes for about a fiver - think dinky cars, usually about 5-10p each.

Make sure you check on ebay that they're not mega-rare ultra valuable ones before you melt them down tho.

Are we talking bearing material here?

If so then see if there is a engine reconditioner near by that does not mind passing on some shell bearings.

Adrian

One source I've used in the past is

James

I wanted the white metal to repair a milling machine lead screw nut (bore out part of the thread and fill it up with white metal when it is on the lead screw). Today I found that William Lane

Philip

For bearing metal you can't do better than Hoyt

I've read of a teflon-loaded epoxy resin called Moglice that's used to do this job (and it would probably be more succesful at casting in place than white metal) but I don't know where it can be found in the UK.

-adrian