Green sand options? Answered

I finally finnished my testing prototype of my metal melting furnace. Did a few casts to get short rods for the lathe work and noticed a big problem. I used washed play sand as itwas the finest sand I could find locally. The result was good in shape but very bad in terms of surface quality. For another test I used the leftovers of my crushed perlite and mixed it bentonite and the surface was really smooth - but using perlite is not really an option. Real green sand is hard to get in my area and the postage costs for a 20kg bag are just too high on top of it. So, before I start hunting down all sand and soils shops nearby: Is there a proper name for extreme fine sand or a good alternative for a reusable casting media?

Asked by Downunder35m 3 years ago


Chemicals people would want to make?

Basically I want to know what lab chemicals you want to make, if you know how to make any useful chemicals. please post, I am not responsible for and injury's, fatality's, or "bad things" of any sort that come from this thread, all things posted here are to assumed for informational purposes only.

Posted by mr.space 9 years ago