Amaco Permoplast Modeling Clay Foundations Opaque Bentonite can also be used

Bentonite can also be used as a glaze thickener in small amounts and can also be used to thicken glazes if you do not want to use an organic compound (such as CMC or Gum Arabic)

slower drying (thus better brushability)

This tool makes the right size holes for salt and pepper shakers

with excellent translucency

but still curved

Amaco Permoplast Modeling Clay Foundations Opaque Bentonite can also be usedFor more than seventy years, Permoplast has remained the standard for first quality, non hardening, plastic modeling clay. This medium is ready to use and is available in gray and cream colours. Permoplast remains smooth and pliable and retains its plasticity indefinitely. Cream is especially formulated for industrial use in making molds. Sulfur free.