Plasters

Plaster and Gypsum Cements

Creative possibilities with Industrial Plasters & HYDROCAL® brand gypsum cements:

1. Art & Casting Plasters
2. Moulding Plasters
3. Industrial Grade Gypsum
4. Tooling Grade Gypsum
5. Gypsums for Press Clayware
6. Exterior Gypsums

There are a number of leaflets to help with the selection of the most suitable plaster product, and how to process the material. Check out the 'Guides and How To' sheets below for more information:

USG Creative Possibilities
USG Cement information
Plaster Mixing Guidelines
USG Sealing and Parting Guidelines
USG Drying casts

Hydrocal White

A gypsum product used for slip latex moulds and case moulds. Offers slightly better heat resistance than pottery plaster with higher wet and dry strengths.

Size: 1kg, 5kg, 22.5kg

Data Sheet - MSDS

Ultracal 30

The most widely used gypsum cement with the lowest expansion rate available. The industry standard for casting of foam latex. Highest strength with less tendency to warp. Excellent for case moulds, close tolerance tooling and applications requiring exceptional hardness.

Size:  1kg, 5kg, 22.5kg

MSDS

Hydrostone TB

One of the hardest and strongest gypsum cements. Slightly higher setting expansion than hydrocal, but is ideal in case moulds, press and stretch dies. The most widely used product for solid casts and statuary.

Size:  1kg, 5kg, 22.5kg

Data Sheet - MSDS

Hydrostone 'Bugs' for sitting on your fence! Courtesy Immortaleyes.

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Drystone

Similar to Hydrostone, but with the advantage of a rapid setting time. Allows the user to paint the cast parts within a few hours of de-moulding.

Size: 1kg, 5kg, 22.5kg

Data Sheet - MSDS

Mixing procedure

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Gardencast

Fully outdoor, weatherproof product. Designed as a 30 minute set, white gypsum that can be mixed with sand at a 1:1 ratio. Ideal for outdoor statuary.

Size: 1kg, 5kg, 22.5kg

Data Sheet - MSDS

Gardencast- exterior solutions

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