Keram 45 is a high strength formulated plaster used to produce working moulds for the automatic forming of clay in tableware applications. This product is used when very long mould life is needed with good dimensional accuracy.
Designed for jiggering
Expansion controlled
Very high strength
| Mechanical Properties | |
|---|---|
| Brinell Hardness (MPa) | 61 |
| Dry compressive strength (Mpa) | 24,9 |
| Flexural Strength (MPa) | 7,6 |
| Pore Volume (%) | 34% |
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4.1/2H2O |
| Colour | green |
| Setting Parameters | |
|---|---|
| Initial setting time (minutes) | 8 - 12 |
| Vicat Ring Fluidity (cm) | 17 - 22 |
| Physical Properties | |
|---|---|
| Particle Size (% weight retained) |
< = 0.04% at 200 µm < =4% at 90 µm |
| Plaster to Water Ratio | |
|---|---|
| Plaster to Water Ratio (by weight) | 2,22 |
| Water to plaster ratio ( by weight) | 45% |
The recommended plaster to water ratio is between 1.90:1 and 2.21:1, 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.