can use this mineral are
highlighted. Please select
one to learn more.
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.
[g/ 100 g]
Production locations Casiflux
Casiflux is the brand name for Sibelco’s wollastonite products.
- Acicular grades are named Casiflux F or Casiflux FG
- Granular grades are named Casiflux G
- 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.
- Chemical resistance: wollastonite has a synergistic effect with dedicated anti-corrosive pigments, such as zinc phosphates.
- Mechanical reinforcement: due to its acicular structure, wollastonite will mechanically reinforce the binder matrix.
- Abrasion resistance: due to its hardness of 5 on Mohs scale, wollastonite will increase the coating’s resistance to wear.
- Rheology control: due to its acicular shape, wollastonite has an impact on the rheology profile. When applying shear, the acicular particles will align and provide a low viscosity. When shear is removed, the acicular particles lose their orientation and cause the viscosity to increase above the level expected when the particles had a non-acicular shape.