Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- W-SERIES – FUNCTIONALITY IN PAINTS & COATINGS
Wollastonite brings multifunctionality to paints and coatings –
applications that are typically subject to high technical requirements,
for example industrial anti-corrosives, road markings, and marine,
architectural and powder coatings.The unique structure of wollastonite improves film strength and
gloss control, increases crack and chip resistance and enhances adhesion. Its alkaline pH improves resistance to corrosion and
weather by preventing pH-downdrift; its hardness increases
scrub resistance and washability and provides high abrasion and
scratch resistance. The whiteness of wollastonite improves color/
tint retention and decreases the need for pigments. With surface
treament, the mechanical and performance properties of wollastonite
in binder system can be further advanced.- W-SERIES – REINFORCEMENT IN PLASTIC COMPOUNDS
Most of the wollastonite-filled compounds are used by the
automotive, household appliance and electric industries. Typical
applications include automotive interior, exterior & underhood
components, tableware, sanitaryware ceramics and electrical
ceramics.
Wollastonite is used as a reinforcing filler in various thermoplastic
and thermoset compounds, e.g. in polyamide, polypropylene,
polycarbonate, polyurethane and epoxy compounds. As a result of
acicular particle structure, wollastonite increases heat deflection
temperature (HDT) and flexural modulus and lowers thermal
expansion and shrinkage. Moreover, its fine particle size offers
excellent impact resistance. The relatively high hardness of
wollastonite promotes effective scratch and mar resistance in the
end product. Proper surface treatment both facilitates processing
and enhances the mechanical properties of the plastic compound.
Applications & Uses
- Applications
- Compatible Substrates & Surfaces
- Coating Type
- Applications
Ceramics, metallurgical powders, paints
& coatings, thermoplastics and thermosets,
gaskets & sealants, elastomers
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Brightness Ry | 86 | (%) | - |
| Bulk Density | 0.9 | g/cm³ | - |
| Median particle size d50. | 17 | (μm) | - |
| Oil Absorption | 19 | (g/100g) | - |
| Specific Surface Area | 1.1 | (m²/g) | - |