Product information
Chalk whiting is a versatile filler, useful for textured wall finishes as it provides high brightness and excellent whiteness. Among these, it is also profitable for rigid and flexible PVC, epoxy compounds, adhesives, rubber, printing inks, and paper products.
The fine soft nature of chalk coupled with a smooth, round particle shape and carefully controlled particle size distribution make it an ideal filler for various applications. Our unique deposit is free from the abrasive flints normally associated with chalk whiting.
General properties cover
- good colour
- high brightness
- low oil absorption
- good temperature stability
- ease of mixing.
Our chalk standard grades
| Uncoated grades | Whiter uncoated grades | Stearate coated grades |
|---|---|---|
| MC5 | MC20H | ST10 |
| MC40 | MC40H | ST10H |
Chalk packaging
Our Chalk product range is available in paper sacks, big bags or bulk.
Mineral information
The typical properties of Chalk.
Physical properties of Chalk:
| Specific gravity [g/cm³] | 2.7 |
| Refractive index | 1.5 |
| Oil absorption [ml/100g] | 16 – 18 |
| Moisture content [%] | 0.25 |
| Loose bulk density [kg/l] (uncoated grades) | 0.5 |
| Loose bulk density [kg/l] (coated grades) | 0.7 – 0.9 |
| Compacted bulk density [kg/l] (uncoated grades) | 1 |
| ompacted bulk density [kg/l] (coated grades) | 1.1 |
Chemical properties of Chalk:
| CaO [%] | 52 – 55 |
Mineral origin
Our Chalk product range comes from a high-quality soft white chalk deposit in the UK.
Chalk mineral toxicology
The mineral is non-toxic and non-hazardous.
