Gyprock specialty Casting Plaster
General Technical Data Sheet

Gyprocksupreg Casting Plaster

Product Availability
Weight Pack Shelf Life
20kg Dark blue bag 1 year from manufacture
Physical and chemical properties
Specific gravity (H2O=1) Approximately 2.4
VOC content (as specified by GBCA) <10 grams per Litre as VOC content per material
Calcium Sulphate Hemihydrate

To confirm product availability, please check with your local Gyprock supplier, or contact Gyprock customer service​


Material Safety


A Material Safety Data Sheet for Gyprock Casting Plaster is available from the Gyprock website under the Resources tab.

Handling and storage

For guidelines on the safe handling of Gyprock products, reference should be made to the Gypsum Board Manufacturers of Australasia (GBMA) publication “Move it the GMBA Way – A Safe Manual Handling Guide for the Plasterboard Industry – Training Guide” (Reference SS172).

This product should be stored in its factory packaging in a dry area.​​​​