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Porbandar, the largest
producer of chalk powder in Asia. Porbandar, the place famous for being Mahatma
Gandhi's birthplace is also the largest manufacturer of quality natural chalk
powder in Asia that is mined and processed at a nearby town Adityana. For over
five decades, this chalk powder has been used as one of the prime raw materials
in the rubber, paint and putty industries.
There is huge requirement of chalk in the rubber industry. Besides, the paint
industry and distemper industry require chalk. Be it the synthetic chemicals,
plastic, cosmetic or paper industries, they rely on the chalk powder from
Adityana Porbandar area. Earlier, it was found in Rajasthan. But the quality of
white chalk in Porbandar is much better, in terms of elasticity and plasticity.
Hence, it is convenient for the rubber industry. Also as compared to the quality
of chalk existing in different parts of the world, Porbandar's chalk quality is
much better and has higher contents than them.
Whiting Chalk Powder
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Chalk Powder White grade
used by Paint manufacturers, wall putty manufacturers, Ceramic
industries, glass putty manufacturers |
Chalk Powder Off-white grade
used by tyre-tubes manufacturers, rubber industries, sports goods
manufacturers, Hardware retailers. |
Apart from the below two grades, there are also four different types of grades which are being used by the industries as per their requirement.
Chalk Lumps / Loose
 Used
in painting wall, used by textile industries,
Used by insecticides & pestisides
industries
Used by fertilizer manufacturers.
Lime Stone
 Lime
stone which finds a great variety of use in modern industrial development is
abundant in Gujarat. It
is the one mineral for which numerous uses are known. In the chemical industry
it is mostly used in the form of lime which is obtained after calcining the lime
stone.
The major consumer of lime stone is cement industry. The second largest
consumers are iron & steel, Ferro alloys, foundry plants & secondary steel
manufacturers where it is used as a fluxing agent. Lime stone is also used in
copper industries. In the form of lime it is utilized & consumed in a number of
industries. Lime is chiefly used in the refining of sugar, paper making, cooking
of rags, bleaching of textiles & leather manufacturers.
High grade lime is used for the manufacturers of chemicals like bleaching
powder, calcium carbide, soda ash, hydrated lime, calcium chloride & slaked
lime.
Industrial application areas of whiting chalk powder
| Paint Industry |
Used in Primers, distemper, glass putty, Wall Putty, Cement Primer, etc.
It is main ingredients in dry distempe and extender. It is used as an
extender agent and to control strength in emulsion paints and printing inks.
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| Rubber Industry |
It provides filler sole for synthetic and natural rubber products like
footwear, auto parts etc. Chalk Powder also improves st rength and whiteness
along with cost reduction. It is very commonly used as filler in cable wire,
Tyres-Tubes manufacturers, footwear and many Rubber products. |
| Paper Industry |
In cigarette paper it controls the burning rate and it also improves
smoothness, opacity and brightness in surface coating for calendar paper.
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| Leather Sheet |
It is widely used in PVC flooring, shoe compounding, etc |
| Plastic Industries |
It is use in pesticide formulation. |
| Ceramic Industries |
It is used as a filler |
| Chemical Industries |
It is used as a filler |
| Cosmetic Industries |
It is used as a filler |
| Ink Manufacturing Industries |
It is used as a filler |
| Allied Industries |
It is used as a filler |
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