The Product "Less Dust Chalks or Dustless Chalks" developed by us having superior quality to ordinary gypsum chalk sticks and other less dust Chalk sticks. At present in India, less dust Chalk sticks with high density are imported from European and American Countries. The Production of this type Chalk sticks using extrusion method is not developed in India.
The Chalk stick has been a traditional teaching aid in schools, colleges and other teaching institutions. At the present time, teaching Organizations/Institutes and Government departments are more conscious about the effects of Chalk dust on the health of students and faculties. Looking to the development in the teaching Institutes, Schools, Colleges, etc. the less dust Chalk has huge demand and market in India as well as in abroad. Most of the well known Institutes in India are importing the less dust Chalk sticks. Thus looking to demand the Product "Less Dust Chalk Stick" has lot of scope in the Indian market.
Product Specifications in Comparison to Norma! Conventional Chalks:The Product developed by us is named "Clean Write" which is less dusting writing Chalk manufactured using Calcium Carbonate. It has following specifications.
| 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 |