CASTROCK
CASTROCK
OVERVIEW
Castrock™ is a multicasting plaster consisting of high purity natural gypsum with CaSO4 · ½ H2O as its main component. It is ideal for molding works, mainly ceramic, sanitary, and tableware due to its low expansion, excellent strength, and hardness. Castrock™ is used for all kinds of ornamental plasterwork.
- Multicasting plaster
- Excellent strength
- Decorative
- Multicasting plaster
- Excellent strength
- Decorative
Advantages
Castrock is a multicasting plaster with low porosity.
It is used for molding and for decorative purposes.
STANDARDS
ASTM C59/59 M,
BS EN 13279-1,
ASTM C 472,
ASTM C 471,
Iso 90001 :2015
STORAGE & HANDLING
Store Castrock™ in its original pack
Avoid direct contact with the ground to protect Castrock™ against humidity
Expiry date is within 12 months from the production date indicated on the bag
Inappropriate storage or exceeding the expiry date may deteriorate the properties of the product.
PHYSICAL SPECIFICATIONS
|
SPECIFICATION |
UNIT |
VALUE |
STANDARD |
| Water/gypsum ratio | % | 70 – 100 | ASTM C 472/471 |
| Initial setting time | mins | 12 – 17 | BS EN 13279 |
| Final setting time | mins | 25 – 35 | BS EN 13279 |
| Insoluble residue on 60 um sieves | % | < 0.5 | – |
| Resistance to compression | MPa | ≥12.5 | BS EN 13279 |
| Resistance to bending | MPa | ≥4.5 | BS EN 13279 |
PHYSICAL SPECIFICATIONS
|
SPECIFICATION |
UNIT |
VALUE |
STANDARD |
| Water/gypsum ratio | % | 70 – 100 | ASTM C 472/471 |
| Initial setting time | mins | 12 – 17 | BS EN 13279 |
| Final setting time | mins | 25 – 35 | BS EN 13279 |
| Insoluble residue on 60 um sieves | % | < 0.5 | – |
| Resistance to compression | MPa | ≥12.5 | BS EN 13279 |
| Resistance to bending | MPa | ≥4.5 | BS EN 13279 |
