Listing ID #4252017
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Properties & uses
Talc is a soft, nonabrasive, inert mineral that can be ground easily (flaky habit) to form white and bright (>78 GE) fine to micronized powder that acts as a functional filler (paint; plastics; paper; rubber; adhesives; joint compounds; stucco; pharmaceuticals). Additional advantages include its high oil and grease absorption capabilities (organophilic/hydrophobic) [cosmetics and pharmaceuticals; pitch-control in pulp; paper filler and coater; dusting and mold-release agent; bitumen filler] and its flaky habit provides structural strength, pigmentation, opacity, rheology, viscosity, and corrosion and weathering resistance [paint; specialty plastics; various rubber compounds]
In Paint, talc has a reinforcing effect, controls viscosity, prevents sagging of paint films, improves suspension characteristics, and because of its large surface area (>12 m2/g) dictates gloss.
In Plastics, talc has a strong reinforcing effect.
In Pharmaceuticals and cosmetics talc’s greasy feel [lubricant or glident], fragrance retention [talcum powder, soaps, creams, and lotions] and hiding powder are useful characteristics.
In roofing products, talc acts as a stabilizer for the melted asphalt thus increasing resistance to fire and weathering.
In ceramics, talc’s high fusion point (heat-stable up to 900°C), fluxing action (due to MgO), and predictive thermal expansion allow lower firing temperatures and shorter firing cycles to be achieved.
Steatite is a massive, cryptocrystalline form of Talc which can be machined easily, has uniform low shrinkage in all directions, and high electrical resistivity when fired [electronic insulators].
Soapstone is a massive green to gray to a black mixture of talc and magnesite that is aesthetically pleasing and can be cut with a knife or machined, resists weathering and acid and alkali attack, is non-toxic and non-absorbent, retains heat, has a melting point of 1630°C and can be polished.
Grades we offer
We offer different grades of Talc catering Paint, Rubber, Ceramic, PVC, master batchers industries. For further details on grades available and offers please contact us.
Quality and Specifications
Ceramic grade: min 30% MgO and 60% SiO2
Cosmetic grade: max 0.1% water soluble substances, 6% acid-soluble substances, 6% LOI @ 1000°C.
Paint grade: min 88% Mg & Ca Silicate, Max CaO, 1% water-soluble matter, 1% moisture and other volatiles, 7% LOI @ 1000°C
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