Slip Casting Southern Ice Porcelain
Peter slip casts Southern Ice porcelain using a variety of techniques including 3D modelling to create the source forms and rapid prototyping technologies to render the 3D models prior to slip casting.
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Buckets One for mixing plaster, a second containing water for washup - plaster discarded in sink will block it. Washing up bowl To act as a type of cottle to contain the object to be cast and prevent the plaster from running out Plastic jugs for pouring casting slip into moulds Fitted mask with filters A paper mask will not suffice when mixing fine dry ingredients such as plaster. Use a fitted mask with filters such as a Unisafe RP462 mask. You will need two Class P2 filters for the mask. The mask is available in small/medium and large. Plastic sheeting protects surfaces from plaster Suitable objects for casting start with symmetrical objects for 2-piece moulds Permanent board marker to mark edges of object prior to casting in plaster Wooden modelling tool to achieve a neat edge where clay meets object prior to casting in plaster Small sponge for tidying rims and 'seams' Trimming knife for refining shape
Potter's Plaster available from Borals Paper pulp to add to wet plaster Practice clay for isolating parts of object prior to casting in plaster Soft soap to act as mould release Walker's 10 casting slip may be purchased or mixed using Walker's 10 powdered clay Deflocculants: Sodium Silicate, Dispex and Soda Ash enable fluidity of casting slip with minimal amount of water Talcum powder small amount rubbed on plaster mould facilitates release of slip cast object