clay craft

Polymer clay cures in the oven — it does not air-dry. Baking instructions specify 275 °F (130 °C) for 15 minutes per 1/4 in (6 mm) thickness. Unused clay can be stored and reused; keep it in a cool, dry place below 77 °F, out of direct sunlight, ideally in polypropylene containers.

Air-dry clay hardens without baking. Available details indicate it can be dry to the touch within 24 hours and may take about 72 hours to fully air dry for finished pieces.

Suggested ages commonly include 4 years and up, 6 years and up, and 8 years and up — so options range from preschool/kid-level kits to ones targeted at older children and tweens.

Quantities vary: single bars or packs like 8 oz and 1 lb appear, bulk modeling clay around 2.5 lb (40 oz) is listed, and some kits include multiple small portions such as 18 colorful clays or sets of clay pieces for multiple projects.

Advice includes covering your work area with a work mat, wax paper, a metal baking sheet, or disposable foil because uncured clay may damage unprotected furniture or finished surfaces. Some kits also advertise 'no mess' designs with internal storage.