Alfamolde 7 PL is a formulated hemihydrate plaster. This moulding plaster is used in every casting application such as working mould for ceramics for the slip casting or for decorative plasterwork and modelling applications. This product can laso be used for the manufacturing of stucco figurines or pieces
High purity
Stable product characteristics
Fine Particle size
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4.1/2H2O |
| Chemical Name | Calcium sulphate hemihydrate |
| Colour | white |
| Minimum gypsum purity % | 94 |
| Mechanical Properties | |
|---|---|
| Dry compressive strength (Mpa) | 10 |
| Flexural Strength (MPa) | 4.5 |
| Setting Parameters | |
|---|---|
| Initial setting time (minutes) | 10 |
| Linear Expansion (%) | 0,15 |
| Vicat Ring Fluidity (cm) | 18.5 |
| Physical Properties | |
|---|---|
| Particle Size (% weight retained) | Trace at 200 µm | 0.75% at 100 µm |
| Plaster to Water Ratio | |
|---|---|
| Plaster to water mix ratio (by weight) | 100/75 |
| Water to plaster ratio (by weight) | 75% |
The recommended plaster to water ratio is between 1.28:1 and 1.38:1, with a mixing time of approx. 2 to 4 minutes.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 and strength.
Packaging available : 25 kg
Shelf life : 6 months
Packaging available : 25 T
Shelf life : Technical properties noted at receipt of goods.