Molda Roller 1
Molda Roller 1 is a formulated plaster used in ceramics to produce working moulds for the automatic forming of clay
Benefits
Designed for jiggering
Expansion controlled
Technical data
| Physical Properties | |
|---|---|
| Apparent Bulk Density (g/cm³) | 0,65 |
| Loose bulk density (kg/m³) | 650 |
| Particle Size (% weight retained) |
Trace at 200 µm 1% at 100 µm |
| Mechanical Properties | |
|---|---|
| Brinell Hardness (MPa) | 60 |
| Dry compressive strength (Mpa) | 25 |
| Flexural Strength (MPa) | 13 |
| Hardness Shore D | 74 |
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4.1/2H2O |
| Chemical Name | Calcium sulphate hemihydrate |
| Colour | white |
| Minimum gypsum purity % | 91 |
| Setting Parameters | |
|---|---|
| Final setting time (minutes) | 18 |
| Initial setting time (minutes) | 12 |
| Linear Expansion (%) | 0,18 |
| Vicat Ring Fluidity (cm) | 18 |
| Plaster to Water Ratio | |
|---|---|
| Plaster to water mix ratio (by weight) | 100/54 |
| Plaster to Water Ratio (by weight) | 1.85:1 |
| Water to plaster ratio (by weight) | 54% |
Instructions for use
The recommended plaster to water ratio is between 1.70:1 and 1.90:1, 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 and shelf life
Bag
Packaging available : 25 kg
Shelf life : 10