Listing ID #1429969
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Today, we have carved a niche as one of the major Less Dust Chalks Exporters. Our Dustless Chalks are offered under the brand name of Clean Write. Use of high quality calcium carbonate in the manufacturing of Dustless Chalk Sticks assures less dust. White Dustless Chalks offered by us are in huge demand in the schools, institutions and other paces. As per the different needs of the clients, our Dustless Chalk Sticks are available in small as well as bulk orders.
| Sl. No. | Description | Conventional Chalk | Dust Free Chalk |
|---|---|---|---|
| 1. | Length, cm | 7.5 | 5.5-6.5 |
| 2. | Diameter, mm | 10- 12.0 | 10-10.5 |
| 3. | Weight, g | 3.76 | 7-8 |
| 4. | Quality of Dust | Fine | Crystalline |
| 5. | Writing Observations | Rough and Screeching | Smooth and Screeching |
| 6. | Writing Length/ Chalk Length (m/cm) |
30 - 35 | 45 -50 |
| 7. | Dust in % | 1.25-1.5 | 0.75-0.90 |
| 8. | Breakage (30 cm fall),% | 20 | 10-15 |
| 9. | Base Material | CaS04 | CaCO3 |
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