TL;DR: To create porcelain figurines, mix porcelain slip, pour it into a plaster mold, then clean, fire, glaze, and fire again. This guide walks you through each stage, from casting to the final kiln pass, with tips for flawless results.
Step 1: Gather Materials
You need porcelain slip (pre-mixed or homemade), a two-part plaster mold, a pouring jug, a fettling knife, sponges, a soft brush, and a kiln. Work in a dust-free space with good ventilation.
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Step 2: Cast the Figurine
Stir the slip gently to remove bubbles. Pour it into the mold, wait 10–20 minutes for a wall to form, then pour out the excess. Let the cast sit until leather-hard (firm but slightly damp). Open the mold and remove the figurine.
Step 3: Clean and Refine
Use a fettling knife to trim seams. Smooth rough areas with a damp sponge, then detail with a soft brush. Attach separate parts (arms, head) using slip as glue. Let dry completely—bone-dry, or it will crack in the kiln.
Step 4: Bisque Fire
Place the figurine in a cold kiln. Fire slowly to 1,800°F (cone 06). Cool completely before removing. This hardens the piece and burns off organic matter.
Step 5: Glaze and Glaze Fire
Dip, brush, or spray on porcelain glaze. Wipe the base clean. Fire again to cone 6 (2,200°F) for a glossy, durable finish. Cool slowly to avoid thermal shock.
Tips for Stunning Results
Keep molds dry between pours. Use distilled water for slip. Sand bisque lightly with 400-grit before glazing. Test glaze on a scrap piece first. Avoid thick glaze pools—they obscure fine details.
FAQ
Q: Can I make porcelain figurines without a kiln?
A: No—porcelain requires high-temperature firing to vitrify. Air-dry clay is a substitute but not true porcelain.
Q: Why did my figurine crack during firing?
A: Likely uneven thickness or trapped moisture. Dry slowly and ensure uniform walls when casting.
Q: How do I attach delicate parts like fingers?
A: Score both surfaces, apply thick slip, press gently, and support with a damp sponge until dry.
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