Monday, May 25, 2015

Talc


Talc in paint and Coating is not used as a filler (to increase the volume) but as a functional component that introduces a number of properties. The surface of pure Talc is hydrophobic, and the particle form is laminar. Different Talc grades have a more or less pronounced laminar structure (macro or microcrystalline) and can contain other minerals. Talc in industrial Coatings has many benefits, which include corrosion protection, solvent reduction and adhesion. Talc is used in paint to improve its physical properties, which include wet scrub resistance, optical properties, weathering protection and more. Read more . . .


Other Usages of Talc:
Talc basically has five characteristics that make it a valuable mineral for industrial and domestic applications.
  • Softness
  • Chemical inertness
  • Lamellarity
  • Whiteness
  • Affinity for Organic Chemicals
In fact, Talc is found in everything from animal feed to tires, and has been for millennia. As long as 15,000 years ago, cave dwellers used Talc in their paints. For at least 5,000 years, it has been used in cosmetics, especially as a skin lightener, and 1,000 years ago, the Chinese began using it in their glazed pottery. Listed below are several of Talc’s uses for the industries of the world:
  • Paper Industry: Talc's number one consumer is the Paper Industry. It is used as filler and Coating for paper products. Furthermore, Talc helps control the paper's pitch while the paper is being processed. It improves paper smoothness, water retention in certain papers, and printability and runnability for coated papers.
  • Ceramics Industry: The Ceramics Industry is another Talc consumer. The glazing and bodies of the ceramics rely on Talc to give ceramics their gloss, whiteness and shape. Dinnerware, Sanitary ware, tiles, porcelain, and electrical insulation are all part of ceramics made with Talc. It is also used as a flux and to control thermal expansion - particularly in catalysts and particulate filters. Read more . . .

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