ArtMetal

Black Dahlia,
That slurry has changed over the years, it has become a colloidal silica refractory binding liquid. Check out Shellspen.com the old slurry had to be kept in motion or it would set up, a royal inconvenience. another tool to build and maintain. Best answer I can find for you. I've done both types of investing..here's where I wonder if you'll have problems..Let's say that we both get our castings, 50 sterling silver eagle pendants. I quench my invested cast flash in a bucket of water, steam clean the tree, pickle the tree, cut sprues, rubber wheel the spot, electostrip and I'm done. Are you still chiseling those eagles out of that concrete? Mine are shipped. FWIW Brad