Re: Novice:Sandcasting questions


Bramblebush ForumsFAQ

Posted by John Dach on August 14, 1998 at 12:26:57:

In Reply to: Re: Novice:Sandcasting questions posted by John Lyons on August 07, 1998 at 23:54:41:

My 2 cents...... First, the latex and other rubber molds are used as you said for casting more complex forms via the ceramic shell or investment casting methods. Actually, "white metal" (zinc, pewter.....) can be cast directly into high temp silicon rubber molds. As to melting the metal, if you are going to work in the above sort of white metals, very little is really needed to melt the stuff as most melts well under 1000 F and at one point I used a 2 burner camp stove to melt pewter. EASY!!! Sources of metal, check out the Art Metal resources. Find a supplier close to you if you are going to do a lot of casting and shipping can get out of hand. Sand can be bought (1 gal can) from most jewelry suppliers but is expensive. I get mine fron a foundry supply house in Oakland CA. In 100 lb bags is was $.65 a pound, lots less in larger quantities. You can also make your own, buy buying sand, clay (a red clay that acts as a binder/glue) and oil. Crucibles, ladels, anti oxidents and any other stuff needed can be obtained from foundry suppliers. I feel for anybody thinking about doing something like this, a trip to one or more "foundries" near you (or far if necessary) will be invaluable for ideas and directions that can be taken. I am always happy to talk with folks about MY experiences as I have been setting my bronze foundry up for 6 years. Unfortuniately, I "re invented too many wheels" as information was not easily available at the time (nor was Art Metal).

Look in the yellow pages for sources, the internet too. There are many sources in Los Angeles, I use J.F. McCaughin (800-573-3000) for much material, but PYRO in Oakland, Cal Wax, Douglas Sturgess, A&R, Smoothon, and on and on and on. Again, check out the resource section in AM.

I make my copes and drages but you can buy them too. Be sure to do the ramming work on a VERY stable work surface as any bouncing while ramming causes MAJOR problems with loose sand.

If you want any other info from this source (ME) either on the AM site of direct, please feel free to do so.


Follow Ups:

Bramblebush ForumsFAQ