Supraduro f is a very fine formulated hemihydrate plaster produced from natrually occuring gypsum mineral.This product is used for the production of working moulds for the slip casting of tableware and figurines.It can also be used for the production of working moulds for the automatic forming of clay.
Design for Slip Casting
Very fine Particle size for details reproduction
| Mechanical Properties | |
|---|---|
| Brinell Hardness (MPa) | 26 |
| Dry compressive strength (Mpa) | 15 |
| Flexural Strength (MPa) | 6,2 |
| Pore Volume (%) | 44,00% |
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4.1/2H2O |
| Colour | off-white |
| Setting Parameters | |
|---|---|
| Initial setting time (minutes) | 10 - 15 |
| Linear Expansion (%) | 0,24% |
| Vicat Ring Fluidity (cm) | 17-22 |
| Physical Properties | |
|---|---|
| Particle Size (% weight retained) |
< = 0.04% at 200 µm < =0.25% at 90 µm |
| Plaster to Water Ratio | |
|---|---|
| Plaster to Water Ratio (by weight) | 1,61 |
| Water to plaster ratio ( by weight) | 62% |
The recommended plaster to water ratio is between 149:1 and 1.61:1, with a mixing time of approx. 2 to 4 minutes, depending on batch size and plaster shop process.Water and Plaster must be measured carefully to ensure constant performances.The precise consistency to use will need to be adjusted to suit the individual application. Changes to plaster to water ratio will influence product performance particularly setting time, strength and permeability.
Packaging available : 25 kg, 50 kg
Shelf life : 6 months
Packaging available : 1 T
Shelf life : 6 months
Packaging available : 25 T
Shelf life : Technical properties noted are at receipt of goods.