And so, I’ve arrived at the final sprued and vented wax, complete, ready to encase in ceramic slurry and sand, the next step of preparation for the pouring of bronze.
These are the materials which make the shell. Colloidal silica slurry mix, and refractory silica sand. You dip the piece into the slurry, and sieve the sand onto the wet surface. Repeat up to eight or twelve layers. This work is taking place at “H”’s studio foundry, a place well-equipped for this. I’d not be able to do any of this without his generosity in sharing with me his superb facility, and his supportive help and advice. (Thanks)
I’m doing half the piece at a time since it is large enough to not fit in the bucket of slurry at once. It has been very warm here this past week, 90+ degrees, and as strong as I’ve tried to make the sprue system, the piece is moving and settling a bit. I want to get this solid shell going on it as fast as possible. There is a lot of difference in the way the wax behaves between 70 and 95 degrees. The first and later layers – green when wet and orange when dry. I’d rather be doing this in Winter, but I’m committed.
This is maybe three layers. many more to go, until it is solid enough to support the weight of the bronze eventually going into it.
Something else I’m doing also, unfinished from a while back. beach Stone people
Is this taking a long time? (I did go to the beach for 10 days). It was a year ago tomorrow since I completed the model for this sculpture, but for details.