Rubber / Rubber Compounding / Talc

Talc

Mineral: Talc

Talc (magnesium silicate, chemical formula Mg3(OH)2/Si4O10)

  • Lamellar nature
  • Low Mohs hardness of 1 (being the softest mineral in the range)
  • Hydrophobic surface and, as a result, low water absorption
  • High brightness
  • High purity
  • High inertness in various media

Basic properties

Property Value Unit
Moisture 0.2 [%]
pH 9 [-]
Hardness (Mohs) 1 [-]
Refractive index 1.57 [-]
Density 2.8 [kg/ dm3]

Products 

Product Grade D50

[µm]

D97

[µm]

OA

[g/ 100 g]

L*
Tital VT  5 4.5 11 55 96
 10 7 17 52 96
 15 8 22 52 96

Production locations: Brassington (UK)

Application: Talc will improve moisture resistance of the rubber compound – it can also have an effect on the rheology and the mechanical properties.

Functionalities: Performance, Mechanical reinforcement, Moisture resistant

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