TL;DR: Making a porcelain vase involves shaping high-fired clay on a potter’s wheel or with molds, then bisque-firing, glazing, and glaze-firing at cone 6–10. Beginners can succeed by choosing porcelain clay, centering carefully, and testing glazes on small tiles before the final firing.
Step 1: Gather Materials and Set Up
Porcelain is a dense, white clay body fired above 2,300°F (cone 6–10). For beginners, choose a pre-mixed porcelain clay labeled for wheel throwing or hand-building. You will need a potter’s wheel or hump mold, wire clay cutter, wooden rib, sponge, calipers, glaze, and a kiln or access to a community studio. Cover your work surface and wear an apron; porcelain stains less than stoneware but dries faster and cracks more easily.
If you want to dig deeper, check out our guide on Porcelain Vase Tech: Smart Hydration & Care Guide.
Step 2: Wedge and Center the Clay
Wedge 2–3 pounds of porcelain to remove air pockets. Slap the clay onto the wheel head and press it into a cone shape. Start the wheel at a slow speed, wet your hands, and press inward with both palms until the clay spins without wobbling. Centering is the hardest step with porcelain because it is soft and sensitive. If the clay tilts, stop and re-center rather than forcing it.
Step 3: Open and Pull the Walls
Press your thumbs into the center to open a hole, leaving a ½-inch base. Pull the walls upward in three or four slow passes, using a sponge to keep the surface slick. Porcelain demands light pressure; squeezing too hard collapses the rim. Aim for a wall thickness of ¼ to ⅜ inch. Use calipers to check consistency.
Step 4: Shape, Trim, and Dry
Shape the neck and lip with a wooden rib. Cut the vase from the wheel with a wire, then let it dry to leather-hard before trimming the foot. Dry the vase slowly under plastic for two to three days to prevent cracking. Porcelain shrinks about 12–14% during drying and firing, so size your vase larger than the finished goal.
Step 5: Bisque Fire, Glaze, and Glaze Fire
Bisque fire to cone 06 (about 1,830°F). Sand rough spots, then dust off the vase. Apply glaze by dipping or brushing three thin coats. Test your glaze on a small porcelain tile first. Glaze fire to cone 6 (2,232°F) or cone 10 (2,340°F) depending on your clay and glaze. Cool slowly to avoid thermal shock.
FAQ
Q: Can I make a porcelain vase without a potter’s wheel?
A: Yes. Use the pinch, coil, or slab method with a hump mold. Hand-built porcelain vases work well if you keep walls even and dry them slowly.
Q: Why did my porcelain vase crack during firing?
A: Cracks usually come from uneven wall thickness, trapped air, or drying too fast. Wedge thoroughly, compress the rim, and dry under plastic for several days.
Q: What glaze looks best on a porcelain vase?
A: Celadon, clear gloss, and soft satin white glazes show porcelain’s translucency. Test on a tile first, since porcelain’s whiteness shifts glaze color brighter than stoneware.
Leave a Reply