TL;DR: To create a porcelain figurine, mix porcelain slip, pour it into a plaster mold, then clean and fire the cast at cone 6–10 before painting with overglaze enamels. Mastery comes from controlled drying, gentle handling of greenware, and understanding glaze chemistry for lifelike results.
Step 1: Gather Materials and Prepare the Mold
You need porcelain slip (casting clay with 50% water), a two-part plaster mold, a bucket, a spatula, and a damp sponge. Ensure your mold is bone-dry and dust-free. Secure the mold halves with rubber bands, leaving the pour hole at the top.
If you want to dig deeper, check out our guide on Porcelain Figurine Tutorial: Step-by-Step Sculpting Guide.
Step 2: Cast the Porcelain Slip
Stir the slip gently to eliminate air bubbles. Pour it steadily into the mold until full. Wait 10–15 minutes for a ¼-inch wall to form, then pour the excess slip back into your bucket. Let the cast rest for 30 minutes until it firms up. Unmold carefully — the greenware is fragile.
Step 3: Clean and Detail the Greenware
Use a fettling knife to remove seams. Smooth surfaces with a damp sponge. For fine details like fingers or drapery, use a needle tool and a small brush dipped in water. Hollow out thick areas to prevent firing cracks. Let the figurine dry slowly under plastic for 2–3 days.
Step 4: Bisque Fire and Glaze
Fire the bone-dry piece to cone 04 (1,945°F) for bisque. Once cooled, apply a thin layer of clear porcelain glaze using a soft brush. For skin tones, mix mason stains into the glaze. Wipe away glaze from the base to avoid sticking. Fire again to cone 6 (2,232°F).
Step 5: Overglaze Painting and Final Fire
Mix overglaze enamels with a medium. Paint facial features, clothing, and accents with fine brushes. Fire to cone 018 (1,350°F) for a permanent, glossy finish. Cool slowly to prevent thermal shock.
Tips: Keep your workspace humid to slow drying. Never touch greenware with bare hands — oils cause defects. Test glaze combinations on tiles first.
FAQ
Q: Can I use earthenware clay instead of porcelain?
A: No, earthenware lacks porcelain’s translucency and strength; it also fires at lower temperatures, changing the sculptural detail.
Q: How do I prevent my figurine from warping during firing?
A: Ensure even wall thickness, dry slowly under plastic, and support thin parts with kiln furniture or silica sand.
Q: What’s the best way to achieve realistic skin tones on porcelain?
A: Use a base of clear glaze mixed with tiny amounts of red, yellow, and brown mason stains, then layer overglaze washes for depth.
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