Supraduro MC70 Q is used in the ceramics industry to produce working moulds for the casting of sanitaryware and tableware where consistent mould life and porosity are important. This product is particularly suited to daily double casting. Other uses include the production of working moulds for tableware and refractories.
Designed for sanitaryware and tableware
Multicasting plaster
High absorption capability
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4 ½ H2O |
| Chemical Name | Calcium sulphate hemihydrate |
| Colour | off-white |
| Min. Gypsum Purity (%) | >92 |
| Mechanical Properties | |
|---|---|
| Dry compressive strength (Mpa) | >10 |
| Flexural Strength (MPa) | >4.5 |
| Setting Parameters | |
|---|---|
| Final setting time (minutes) | <30 |
| Initial setting time (minutes) | 12 - 16 |
| Linear Expansion (%) | <0.25% |
| Vicat Ring Fluidity (cm) | 20 - 24 |
| Physical Properties | |
|---|---|
| Loose bulk density (kg/m³) | 620 - 720 |
| Particle Size Distribution (mesh size and % weight retained) | +63 microns <6.0% 90 microns <1.0% |
| Plaster to Water Ratio | |
|---|---|
| Plaster to water mix ratio (by weight) | 100/74 |
| Plaster to Water Ratio (by weight) | 1.35 : 1 |
| Water to plaster ratio (by weight) | 74% |
The recommend PWR is 1.38 : 1. The product can be use at 1.35 – 1.43 : 1
Recommend Mixing time 3 – 5 min.
Packaging available : 25 kg
Shelf life : 6
Packaging available : 1.05 MT
Shelf life : 6