On Tue, 14 Jul 2009 21:10:17 -0500, Ignoramus13927
wrote:

I need to repair a safety shield from a large "bench" grinder. The
shield is cast iron and has a crack. I want to know what is the
easiest way to repair this, with the choices being: silicon bronze,
fluxed silver brazing sticks, or TIG with 99% nickel.


TIG with silicon bronze.

--
Ned Simmons