Medium Pressure Casting

Our alpha plasters provide a high level of mould life and permeability improving the number of casts per day.

Medium pressure casting provides a good balance between pressure casting high efficiency and traditional casting flexibility and quality.

The mould is no longer used for its natural porosity but as a filter-press. A network is created using porous sleeves or tubes directly cast into the mould.

With extensive experience in alpha plaster production, Saint-Gobain Formula supplies dedicated solutions for medium pressure casting allowing our customers to achieve high mechanical expectations and fast dewatering time.

Benefits of usage

Very high mould life (up to 700 pcs/mould)
5 to 10 casts per day
Dedicated plasters with high permeability and mechanical strength

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Best Practice

Medium pressure casting methodology

A network is created using porous sleeves or tubes which are placed in the mould before casting. This network allows the circulation of pressurized air which accelerates the forming of the clay piece and may also be used to force water out of the mould after the casting operation. The mould is prepared in two steps; the creation of the sleeve structure within the model shape, and the casting of the plaster into the model.

sg_formula_-_medium_pressure_casting_best_practice_ceramics.pdf 425.39 KB

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Medium Pressure Casting

Benefits of usage

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Best Practice

Medium pressure casting methodology

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