Amaco Marblex Self-Hardening Clay 25lb Carton

Pottery Clay Overview

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 MarblexTM 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.

Shop Pottery Clay

They call us the “King of Clay” for a reason!

Clay-King is your go-to shop for all types of pottery clay. Our vast inventory includes clays for every project, including air dry, slip, porcelain, stoneware, earthenware, terracotta, and more. We make it easy to find the best clay for your firing range.

No matter your clay color or quantity needs, Clay-King has the perfect product for you! Our warehouse is stocked with the top clay brands including Highwater, Sio-2, Kentucky Mudworks, and Laguna.

Clay-King specializes in bulk orders, so we’re the perfect option for the professional potter or studio artist. While we have the capacity to meet the needs of larger customers, we also serve as a resource for the hobbyist, student, or newbie to the pottery community. Our experienced team can help guide you to the best pottery clay for you, no matter your project!

Why Choose Clay-King for Pottery Clay?

When you shop with Clay-King, you’re choosing a company that stands behind our pottery clay and products. You can rely on our team to provide unbeatable customer service and help you succeed.

Massive Pottery Clay Inventory

Clay-King is a leading supplier of ceramics pottery products, including all types of pottery clay! Our warehouse is always stocked with clays of various firing ranges and colors. You can also find other ceramic products you’ll need for your project.

Fast Shipping on Pottery Clay

Thanks to our in-house warehouse department, we can ship your clay fast! You can expect speedy delivery and expert packing, so your clay arrives in the best condition possible.

Incredible Customer Service

Our experienced potters on staff and customer service team are here to support you every step of the way. Whether it’s a question about your clay order or if you’re seeking recommendations for your next project, our experts are here to help!