Wolkem’s Uncoated & surface modified HAR Wollastonite grades provide excellent dimensional stability, tensile strength, improved flow and high heat distortion temperature, scratch resistance in Engineering plastics like Nylon, PBT, PP, SMC, DMC, Epoxy, and PC Compounds.
Wolkem’s Wollastonite provides
- Significant advantages such as higher loading improved product flow.
- Product uniformity, scrape reduction, lower initial viscosity and faster mold cycles.
- This also has low water absorption, low electro-conductivity & low resin demand.
- It is used as a partial replacement of costlier fibre like glass Fiber and without major effect on tensile strength.
- The unique needle-like physical structure and stable chemical properties of wollastonite determine its good wear resistance, reinforcing effect, high-temperature resistance, corrosion resistance, etc.
- It is also non-toxic, tasteless, and non-radioactive, and is widely used in functional filler for polymer application.
Recommended Grades
- Kemolit 60mesh upto 8 micron top cut
- Fillex upto 8 micron top cut surface treated
Calcite in Polymer Applications
Wolkem’s uncoated and surface modified milled and Micronized grades are excellent low cost filler for Polymer compounding, Master-Batches, PVC Rigid Pipes, Profiles, Doors and Windows.
Calcite provides
- Better mechanical properties then any other filler such as better dispersion, reinforcement etc.
- Lowers cost of production.
- Lowers Resin demand
- Calcium carbonate is an additive used to increase the elasticity, viscosity and heat resistance of plastics
- Users have noticed and calcium carbonate has become an attractive option with the function of additive in plastic production.
Recommended Grades
- Fillex upto 6 micron top cut surface treated
- Calkron – upto 8 micron top cut
