Tufa Stone Casting Compliments of Lloyd Butterfield
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If you have any questions, or a better way to do any thing, please let me know by emailing me at firstname.lastname@example.org.
Steps and Pictures
This is Tufa stone purchased from Thunderbird Supply: Photo
Cut pieces of Tufa stone for carving: Photo
Carved Tufa stone. I have shadowed it to show carving: Photo
Carved Tufa stone, carbonized: Photo
Carved Tufa stone, tied and ready to take molten silver: Photo
Button showing after pouring: Photo
This shows the piece in half of the Tufa mold: Photo
This is the casting after it has been removed from the mold: Photo
Pickled casting, ready to be worked: Photo
Here is the finished casting: Photo
I cut the Tufa stone into pieces the proper size to carve. After carving, it was soaked overnight in a mixture of water, borax, boric acid, and sodium phosphate, then dried, carbonized with a torch, and finally, cast.