Medical Plaster
Medical Plaster
Technical data
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4.1/2H2O |
| Chemical Name | Calcium sulphate hemihydrate |
| Colour | Off-white, red, |
| Minimum gypsum purity % | 90 |
| Mechanical Properties | |
|---|---|
| Dry compressive strength (Mpa) | 8 |
| Flexural Strength (MPa) | 3 |
| Setting Parameters | |
|---|---|
| Final setting time (minutes) | 12 |
| Initial setting time (minutes) | 4 |
| Vicat Ring Fluidity (cm) | 19 |
| Physical Properties | |
|---|---|
| Particle Size (% weight retained) | < 5% at 150 µm |
| Plaster to Water Ratio | |
|---|---|
| Plaster to water mix ratio (by weight) | 100/80 |
| Plaster to Water Ratio (by weight) | 1.25:1 |
| Water to plaster ratio (by weight) | 80% |