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Rectangular block of black oven-bake polymer clay

Sculpey

Sculpey Premo Oven-Bake Clay 8oz Black

SKU CH-F90J-5D9T8

Oven-bake polymer clay that stays flexible and strong after curing, conforming to ASTM D4236 and made in the USA

  • TypeClay
  • ASTM D4236 certified for safe studio use
  • Made in the USA ensuring consistent quality
  • Retains flexibility after baking for durable finished pieces
  • Firm enough to hold fine detail and specialized techniques
  • Soft and blendable after conditioning for easy shaping

Artist-Grade Polymer Clay

This 8-ounce block of Premo Sculpey is formulated for artists and serious hobbyists who need a clay that conditions to a soft, blendable state yet holds fine detail for specialized sculpting techniques. It bakes in a standard oven to a strong, flexible finish that resists cracking. The material conforms to ASTM D4236 for safe creative use.

Upgrade from Basic Clays

Makers moving up from entry-level polymer clays will notice firmer handling after conditioning and superior detail retention for caning, mokume gane and intricate figurine work. The jump is worth it when projects demand durability in thin sections or when colour blending must stay crisp without muddying. Finished pieces keep a slight flexibility that reduces breakage.

Check Your Workflow

Verify you have a conventional oven capable of maintaining the precise baking temperature recommended on the packaging, as microwave curing is not suitable. Ensure your work surface and tools are clean to avoid contaminating the black pigment. Plan for conditioning time — either by hand or with a pasta machine — before the clay reaches its optimal working consistency.

Highlights

  • ASTM D4236 certified for safe studio use
  • Made in the USA ensuring consistent quality
  • Retains flexibility after baking for durable finished pieces
  • Firm enough to hold fine detail and specialized techniques
  • Soft and blendable after conditioning for easy shaping

Specifications

TypeClay

Questions about this item

What oven temperature does the 8oz Premo Sculpey block require?

The package states it is oven-bake clay and conforms to ASTM D4236; follow the manufacturer's printed temperature and time guidelines for the specific project thickness.

How should the clay be prepared before shaping?

Condition the block by kneading or rolling until it becomes soft enough to blend easily while remaining firm enough to hold fine detail.

Does the cured piece stay flexible or become brittle?

Premo retains flexibility after baking, so the finished item remains very strong and durable rather than turning brittle.

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