Carborundum

Re: Carborundum

Joel

>Carborundum is a generic name for artifical stones made from Silicon Carbide in a binder. Crystalon is the Norton trade name as in India stones which are aluminum oxide.

Crystolon stones are soft and dish very very easily. but they do cut fast. not very useful for woodworking because they dish so fast. and a very harsh edge.

Re: Carborundum

Jeremy Osner

>Sorry, I'm not quite understanding -- are "india stones" and "crystolon stones" two words for the same thing, or distinct?

Re: Carborundum

L. Hanson

>They are two different animals, as Joel mentioned.

There is some confusion about the differences between Carborundum, Crystolon, and India stones... They are all manmade stones - Crystolon is a brand name Norton uses for their Carborundum stones, so those two are the same - a silicon carbide. The red India stones are aluminum oxide, so are different. I have read that some of the earlier version of Carborundum were, or were considered to be, India stones. That is not the case now and may be a source of some of the confusion between them.

Leif

Re: Carborundum

Joe Rogers, Northern Virginia

>Distinct. India are aluminum oxide. Crystolon are silicone carbide(carborundum) Both names are Norton trademarks.JR

Thanks

Jeremy Osner

>

Re: Carborundum

Jeremy Osner

>Ah ok, on rereading I see there was no reason to get confused...