Painting Surface

Air-Dry Clay

Air-dry clay is a modeling material that hardens without a kiln or oven. Finished pieces remain more moisture-sensitive than fired ceramic, so they should dry completely before paint or sealer is applied.

Air-dry clay paint compatibility

Acrylic, tempera, and watercolor can all be used on thoroughly dry air-dry clay, with acrylic providing the most opaque and durable decorative coating of the three.

Paint Compatibility Preparation Primer or ground Finish Guide
Acrylic paint Excellent on thoroughly dry clay Let the piece dry completely, remove loose dust, and lightly smooth rough areas if needed before painting. Optional water-based craft sealer can reduce absorbency and create a more uniform surface. Use a compatible clear finish when extra protection or sheen is wanted.
Tempera paint Good for decorative craft projects Paint only after the clay has dried completely and brush away loose surface dust first. Usually optional for simple craft use; a compatible sealer can reduce uneven absorption. Protect with a compatible finish when the project needs better resistance to handling or moisture.
Watercolor paint Good for transparent decorative effects Use thoroughly dry clay and test first because porous clay can absorb washes quickly and unevenly. Usually not needed when absorbency is part of the desired effect; sealing first changes how the wash behaves. Use a compatible protective finish if the piece will be handled or may encounter moisture.

Sources: Crayola air-dry clay drying guidance, Crayola air-dry clay decorating guidance, and Sculpey Air-Dry Clay.

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