Tom Oldsmith Posted May 29, 2012 Share Posted May 29, 2012 I decided I wanted myself instead order a ready-made, and of the way film was made. I cut him cruelly to remove offensive words and eliminate members of the public. What came of this, here you see. Quote Link to comment Share on other sites More sharing options...
781 Posted May 29, 2012 Share Posted May 29, 2012 Thanks for the video Quote Link to comment Share on other sites More sharing options...
Bentiron1946 Posted May 30, 2012 Share Posted May 30, 2012 What are you using as a binder for your sand? Quote Link to comment Share on other sites More sharing options...
Tom Oldsmith Posted May 31, 2012 Author Share Posted May 31, 2012 Water ? :) This is a commercial sand, my boss bought it online. Quote Link to comment Share on other sites More sharing options...
Bill Keen Posted October 17, 2012 Share Posted October 17, 2012 Ideally, a non-silica sand. I used olivine for 40 years. 3-6% Bentonite clay, enough water to hold it together, 1-3 %. Quote Link to comment Share on other sites More sharing options...
HWooldridge Posted October 17, 2012 Share Posted October 17, 2012 It looks like Petrobond, which is a commercial oil sand. Please be very careful with water around casting work - any moisture in the pot can blow molten metal all over the place. I always preheat metal to be added to the crucible on the forge to make sure it is dry. Wet tongs could also be a problem if any water finds its way into the melt. Just out of curiosity, what is your native language spoken on the video? Quote Link to comment Share on other sites More sharing options...
Bill Keen Posted October 17, 2012 Share Posted October 17, 2012 'Tom Oldsmith' Water ? :) This is a commercial sand, my boss bought it online. If water it's greensand. Petrobond requires adding the oil based binder now and then but not water. Quote Link to comment Share on other sites More sharing options...
Yetti Posted October 18, 2012 Share Posted October 18, 2012 not sure why but one casting lab I was in used stoddard solvent in the sand mix. Quote Link to comment Share on other sites More sharing options...
Frosty Posted October 20, 2012 Share Posted October 20, 2012 Stoddard solvent dissolves the polymerized bonds of some oil bonded sands so they can be reused. A local caster friend of mine near here prefers resin bonded sand. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Tom Oldsmith Posted October 27, 2012 Author Share Posted October 27, 2012 HWooldridge, I am careful, molten metal play with me does not since yesterday. I had earlier make casting silver and brass, aluminum is a easiness of. I added water because I thought it was the best choice, it looks like the bentonite, that sells so declared , and I had nothing else available :) I'm originally from Europe, from Poland. I do not know what you heard, at work we talking in several languages. Quote Link to comment Share on other sites More sharing options...
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