#1 POTTERY: High grade porous plaster for quality slip casting molds and general casting.
Bryan Yerian: Instructions for Multi-Section Plaster Mold-Making
Slip, Coffee 1 Gallon - The Ceramic Shop
Mixing No.1 Pottery Plaster
Pottery Plaster #1 – US Pigment Corporation
USG #1 Pottery Plaster 50 Pounds – Evans Ceramic Supply
Laguna - Plaster - Pottery #1 #Plaster-Pottery#1
How to Mix Plaster - Guy Michael Davis demonstrates plaster mixing
Making Wedging table and Clay Recycling Plaster Boards
Making Wedging table and Clay Recycling Plaster Boards
FMSC - #1 Pottery Plaster