Plasters and Cements

arial view of mill

Puritain Plaster
The Hardest, most wear resistant Plaster made for molds, great for jiggering molds or wedging tables.
Manufacturer's Material Data Sheet
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Ceramical
Used in RAM press operations as this smooth wearing dense plaster is perfect for die pressing clays.
Manufacturer's Material Data Sheet
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Casting Plaster
A quick curing casting plaster which allows minimal paint absorption while providing excellent strength and chip resistance. Setting time:27 to 37 minutes
Manufacturer's Material Data Sheet
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Hydrocal White
A basic gypsum cement with a use consistency of 45 lbs. of water per 100 lbs of plaster. Can Be carved or added to. Setting expansion about twice that of casting or pottery plaster. Setting time:25 to 30 minutes.
Manufacturer's Material Data Sheet
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Hydrocal FGR-95
A unique, high strength gypsum cement for use with glass fiber for fabricating glass-reinforced gyspum cement products. Setting time 50 to 70 minutes
Manufacturer's Material Data Sheet
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Hydro-Stone
Hard and strong especially suitable where high resistance to water absorption is necessary. Cannot be worked under a template. Used in high quality art novelty and statuary castings. SHould not be cast in glue molds, but works well in plaster, rubber, or koroseal. Setting time:17 to 20 minutes.
Manufacturer's Material Data Sheet
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Ultracal 30
Surface hardness and compressive strength are higher and setting expansion is lower than Hydrocal B-11, but has similar workability and setting characteristics. Setting tim: 25 to 30 minutes
Manufacturer's Material Data Sheet
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Pottery #1
This is the most widely used plaster in the ceramics industery. It is a high quality white plaster and is an excellent choice for longer-lasting slip casting molds. Setting time:27 to 37 minutes.
Manufacturer's Material Data Sheet
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Industrial Minerals Company
7268 Frasinetti Road
Sacramento, CA 95828
916-383-2811