Architectural Coatings / Interior / Wollastonite

Wollastonite

Wollastonite (silicate, chemical formula CaSiO3) exists in an acicular and non-acicular form.

Wollastonite can be characterised by:

 

  • Shape (non-acicular/ acicular)
  • Medium Mohs hardness of 5
  • Alkaline nature.

 

Basic properties

Property F/ FG G Unit
Moisture < 0.2 0.2 [%]
pH 10 [-]
Hardness (Mohs) 5 [-]
Refractive index 1.63 [-]
L.O.I. 3.5 n.d. [%]
Density 2.9 [kg/ dm3]

Acicular

Non-acicular

 

Product overview

Product Grade D50

[µm]

OA

[g/ 100 g]

L*
Casiflux FG20 18 54 94
F75 28 59 90
G20 10.5 30 96
G38 18 28 96

 

Production locations Casiflux

 

Application

Wollastonite will provide:

 

  • Mud cracking resistance: due to its acicular shape, wollastonite will form a physical network inside the coating which reinforces the coating and, as a result, lowers the tendency for cracking.

 

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