Alfamolde R59 is a formulated plaster used in ceramics to produce working moulds for jiggering. This new product can be used in high plaster to water ratio in order to reach longest mould life.
Expansion controlled
High surface hardness for long mould life
New product with a wide range of plaster to water ratio from 1.70:1 to 1.85:1
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4.1/2H2O |
| Colour | white |
| Minimum gypsum purity % | 93 |
| Mechanical Properties | |
|---|---|
| Dry compressive strength (Mpa) | 17 |
| Flexural Strength (MPa) | 6 |
| Setting Parameters | |
|---|---|
| Initial setting time (minutes) | 14 |
| Linear Expansion (%) | 0,13 |
| Vicat Ring Fluidity (cm) | 22 |
| Physical Properties | |
|---|---|
| Particle Size (% weight retained) |
Trace at 200 µm 1.4% at 100 µm |
| Plaster to Water Ratio | |
|---|---|
| Plaster to Water Ratio (by weight) | 1.70:1 |
| Water to plaster ratio ( by weight) | 59% |
The recommended plaster to water ratio is between 1.70:1 and 1.85:1, 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
Shelf life : 6 months