Keramicast High Density Plaster

About

Keramicast is a white high-quality casting plaster made for the ceramic industry, being harder and more durable than Potters Plaster 3450.

Traditionally used in ceramics for the production of working moulds for both jiggering and slip casting.

Formulated hemihydrate plaster (CaSO4.1/2H2O) produced from naturally occurring high purity gypsum mineral.

Keramicast produces a tougher mould giving a longer than average casting life, and having good resistance agents for abrasive clay slips.

• Plaster/Water Ratio: 100/56
• Working Time: 8 Minutes
• Demould Time: 12 Minutes
• Expansion: 0.28%
• Compressive Strength: 22 Mpa

Data Sheet: See Downloads tab to the right of the Description tab or click this link>

IMPORTANT: Storage of Plaster Products

• Plaster-based products are not recommended for conditions where they are likely to be located externally or in any way subjected to weathering or excessive dampness. Absorption of moisture can result in changes to physical properties, including a reduction in the set strength of plasters and also a lengthening of setting time. Gypsum minerals can be affected by absorption of moisture and may change physical properties.To help protect the product during use, open or part used bags should be carefully folded and closed.
• Saint Gobain Formula’s guarantee is that their plaster will meet the specifications stated on their data sheet for a 6 month period from date of manufacture. This does not mean that the plaster will not be usable after 6 months, just that it may well fall out of some of the parameters quoted on their data sheets. For example, set times will typically increase as the plaster ages, so it is likely that at some point beyond 6 months the set time will be higher than the figure quoted on the data sheet. This does not necessarily affect the strength or durability of the plaster, but may require a small adjustment in the mixing / application process.
• If you have any further questions please contact our Technical department.

Collections

• Moulds & Bisque

Ask a Technical Question 3451-01 Keramicast TDS