If you must do so use the fine silica sand from home depot. It will be larger in grain size than you want and won't work near as good as 'Olivine' sand from the foundry supply. Where are you located so we can help you find the 'Good' sand?
Gene
--- In gingery_machines@yahoogroups.com, "aces4me" <aces4me@...> wrote:
>
> After doing a little lost foam casting I'm looking forward to doing some casting with green sand. I've got bentonite but damned if I can find a local source of fine silica sand. All I can find locally is "play sand" or general purpose sand at Lowes and Home Depot. Does this kind of sand work OK as green sand?
>
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