Plaster - #1 Pottery - Columbus Clay Company
1 Pottery Casting Plaster by US Gypsum
Here - Columbus Clay Company
Pottery Plaster #1 - The Ceramic Shop
is a pure white slowsetting plaster that can be used for casts molds and direct molding
Standard Clay Company Casting Plaster
Pottery Plaster #1 – US Pigment Corporation
Finding Inspiration
Glazes Archives - Columbus Clay Company
Glazes Archives - Columbus Clay Company