Slit Casting Ceramics

This tutorial is demonstrating how to slip cast porcelain in an already existing plas.

Slit casting ceramics. Slip casting is the process of filling the molds with slip which is the liquid clay allowing it to solidify and after a while forming a layer called the cast inside of the mold s walls. Slip is just a liquid mixture of clay or a liquefied suspension of clay particles in the water and is generally a little thinner than a slurry. As the mold is rotated the slurry coats the mold wall and water is absorbed into the plaster thereby drying the slurry closest to the wall. Vtg slip casting ceramic mold christmas noel 1of4 e no maker s mark ns097.

This happens because the mold absorbs the water from the slip through its pores collecting the ceramic particles against the mold. If you are interested in mixing your own casting slips check out these tips and reference guide from laguna clay by clicking here. The process usually takes at least 24 hours per piece. Slip casting can be useful for making multiples of one object and to make casts that are hollow on the inside.

Slipcasting or slip casting is a ceramic forming technique for pottery and other ceramics especially for shapes not easily made on a wheel in slipcasting a liquid clay body slip usually mixed in a blunger is poured into plaster moulds and allowed to form a layer the cast on the inside walls of the mould. Slip casting of clay pottery is depicted on egyptian tomb walls and minoan amphorae. Slip casting is liquified clay poured into a plaster mold the ratios are roughly 75 percent clay body to 25 percent water. Porcelain casting slip cone 6 8 antique white frost very white.

Vtg ceramic pottery slip casting mold plain smooth bowl 8 l x 5 1 4 w. This is a step by step tutorial on how to slip cast. If you have any questions about selecting the right casting slip for your studio or project give us a call we are happy to help you. In slip casting a slurry of clay and water is poured into a porous mold usually made of plaster.

Placing it at an angle avoids stalactites of clay forming on the bottom of the piece.