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Amaco Air Dry & Self-Hardening Clays

Marblex - A moist, self-hardening, gray clay that can be modeled by hand, with tools, or thrown on a potters wheel. This gray, self-hardening modeling clay is prepared in moist form, ready to use for all methods of modeling, including wheel throwing and sculpting.

When completely dry, finished pieces are durable but not waterproof. Knead Marblex(TM) to increase plasticity before modeling. Keep unused clay in a plastic bag or wrapped in damp cloth to prevent drying out. It will shrink during drying, so it is best to hollow out bulky sculptures or wrap a slab of clay around a loose crumpled paper armature before modeling.

Allow the finished piece to dry slowly and evenly on all sides at room temperature and away from heat until hard. When piece is completely dry, decorate with AMACO(R) Rub n Buff(R), school paints, temperas, acrylics or liquid crayons. After decorating, it is a good idea to coat with shellac or varnish to seal it and make it water resistant.

Mexican Pottery Clay - A self-hardening red clay supplied in moist form ready to use. When dry, modeled objects are hard and durable. This red, self-hardening modeling clay is prepared in moist form, ready to use for all methods of modeling, including wheel throwing and sculpting. When completely dry, finished pieces are durable but not waterproof. Knead Mexican Pottery Clay(TM) to increase plasticity before modeling. Keep unused clay in a plastic bag or wrapped in damp cloth to prevent drying out. It will shrink during drying, so it is best to hollow out bulky sculptures or wrap a slab of clay around a loose crumpled paper armature before modeling.

Allow the finished piece to dry slowly and evenly on all sides at room temperature and away from heat until hard. When piece is completely dry, decorate with AMACO Rub n Buff, school paints, temperas, acrylics or liquid crayons. After decorating, it is a good idea to coat with shellac or varnish to seal it and make it water resistant.

Stonex - Self-hardening white clay. Prepared in moist form and ready to use. When completely dry, finished pieces are hard and durable. This white, self-hardening modeling clay is prepared in moist form, ready to use for all methods of modeling, including wheel throwing and sculpting. When completely dry, finished pieces are durable but not waterproof. Knead StonexTM to increase plasticity before modeling. Keep unused clay in a plastic bag or wrapped in damp cloth to prevent drying out. It will shrink during drying, so it is best to hollow out bulky sculptures or wrap a slab of clay around a loose crumpled paper armature before modeling.

Allow the finished piece to dry slowly and evenly on all sides at room temperature and away from heat until hard. When piece is completely dry, decorate with AMACO Rub n Buff, school paints, temperas, acrylics or liquid crayons. After decorating, it is a good idea to coat with shellac or varnish to seal it and make it water resistant.

We certify that AMACO only ships LEAD FREE products in compliance with the Consumer Product Safety Improvement Act of 2008.

Color Swatches - Use for reference only. If exact color matching is desired please use actual samples of the materials.

Marblex, Mexican Pottery, Stonex are AP Non Toxic


Amaco Marblex Clay Gray 5lbs (2.27kg)

Amaco Marblex Clay Gray 5lbs (2.27kg)


$17.10  $15.39

Save: 10% off




Amaco Air Dry Clay Modeling Grey 25lbs (11.25kg)

Amaco Air Dry Clay Modeling Grey 25lbs (11.25kg)


$20.25  $18.23

Save: 10% off




Amaco Air Dry Clay Terra-Cotta 25lbs (11.25kg)

Amaco Air Dry Clay Terra-Cotta 25lbs (11.25kg)


$20.25  $18.23

Save: 10% off

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Amaco Mexican Pottery Clay Terrecota 5lbs (2.27kg)

Amaco Mexican Pottery Clay Terrecota 5lbs (2.27kg)


$17.10  $15.39

Save: 10% off




Amaco Air Dry Clay White 25lbs (11.25kg)

Amaco Air Dry Clay White 25lbs (11.25kg)


$20.25  $18.23

Save: 10% off




Amaco Stonex Clay White 5lbs (2.27kg)

Amaco Stonex Clay White 5lbs (2.27kg)


$22.00  $19.80

Save: 10% off




Monthly Specials For September

Amaco Marblex Clay Gray 5lbs (2.27kg)
$17.10  $15.39

Save: 10% off

Amaco Air Dry Clay White 25lbs (11.25kg)
$20.25  $18.23

Save: 10% off
Amaco Stonex Clay White 5lbs (2.27kg)
$22.00  $19.80

Save: 10% off