Prestia 23 No.1 is a basic casting plaster similar but slightly harder than Prestia Casting Plaster. Used for general fibrous castings.
- Plaster/Water Ratio: 100/66 to 71
- Working Time: 14 Mins
- Demould Time: 30-40 Mins
- Expansion: 0.13%
- Compressive Strength: 13 Mpa
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