03-22-2014, 11:04 AM
(03-22-2014, 05:14 AM)awemawson Wrote:(03-21-2014, 08:06 AM)dallen Wrote: home mixed oil bonded sand, and a two part mold. Oil bonded sand is hard to work with when its cold so the first one that I poured was a little rough around the edges, the second was a lot better pour but I lost the bearing in the back of the vac motor I use for a burner blower so melt was really fun with a half a crucible full of half melted aluminum when the blower gave up the blue smoke.
Is it your own recipe and can you share it ?
same recipe that everyone else uses far as I know , petrobond powder and used motor oil with a splash of Methanol throwed in to catalyze the oil, all mixed up with some silica sand.
Stuff is a bear to work with when its cold, but when its a hundred degrees here I don't have to worry about molds drying out faster then I can ram em up.
DA
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.
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