Heliodur 20
Heliodur 20 is a high strength formulated plaster used to produce working moulds for the automatic forming of clay in tableware applications
Benefits
Designed for jiggering
Expansion controlled
High strength
Technical data
| Physical Properties | |
|---|---|
| Apparent Bulk Density (g/cm³) | 1100 |
| Particle Size (% weight retained) |
0.04% at 200 µm 4% at 90 µm |
| Mechanical Properties | |
|---|---|
| Brinell Hardness (MPa) | 47,3 |
| Dry compressive strength (Mpa) | 21,3 |
| Flexural Strength (MPa) | 7,6 |
| Pore Volume (%) | 37% |
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4.1/2H2O |
| Colour | off-white |
| Setting Parameters | |
|---|---|
| Initial setting time (minutes) | 10-15 |
| Linear Expansion (%) | 0,23 % |
| Vicat Ring Fluidity (cm) | 17-22 |
| Plaster to Water Ratio | |
|---|---|
| Plaster to Water Ratio (by weight) | 2.00:1 |
| Water to plaster ratio ( by weight) | 50% |
Instructions for use
The recommended plaster to water ratio is between 1.82:1 and 2.00:1, 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, 50 kg
Shelf life : 6 months
Bulk Bag
Packaging available : 1 T
Shelf life : 6 months
Bulk tanker
Packaging available : 25 T
Shelf life : Technical properties noted are at receipt of goods.