Wolkem’s uncoated and surface modified milled and Micronized Wollastonite grades are excellent functional fillers and coating pigments for marine and industrial coating applications, ,Oil base & water based interior and Exterior paints, & in Cement paints, Epoxy based powder coating.
Wolkem’s Micronized & Milled Wollastonite grades are an excellent functional filler as it improves-
- Reinforcement
- Lower water demand
- Corrosion resistance
- Heat & Blister resistance
- Reduces cracking, checking
- Good stability in most water-based systems
- Durability and strength
- Better levelling
- Better tint retention
- Prevents down ward pH drift
- Easy and smooth brushing are the major benefits.
- Provides reduced oil absorption providing significant Elevation of the critical pigment volume concentration.
- Provides increased loading capacity without accompany election and viscosity.
- Acicularity is considerable value in cohesive reinforcement of coating films.
- Provides better mechanical strength.
- Maintains Alkalinity during long storage period.
- Replaces other costlier fibres
- Insures better pH stability.
- Wollastonite filler was successfully evaluated in conventional epoxy zinc phosphate primer formulation at various percentages as a partial replacement of zinc phosphate filler.
- Among 2-Grades of Wollastonite Kemolite KW-4 was observed to be best in terms of processing of paint.
- The studies revealed that, the 75% replacement seems to be best option to incorporate wollastonite filler in conventional epoxy zinc phosphate primer as far as processing and performance properties are concerned.
Recommended Grades of Wollastonite
- Kemolit KW-4
- Kemolit KWB-1010
- Fillex 9AE-1(KWB)
- Fillex 2AF-3-KF
Calcite in Paint Applications:
Wolkem’s uncoated and surface modified milled and Micronized Calcite grades are excellent functional fillers and coating pigments for marine and industrial coating applications, ,Oil base & water bas interior and Exterior paints, & in Cement paints, Calcite improves
- Corrosion resistance
- Durability & Strength
- Gloss & Shade
- Brightness
- Provides a better bonding with the Resin.
- Calcite also improves the covering ability, abrasion resistance, adhesion, impact resistance, and flexibility.
Recommended Grades-
- Calsun-3
- Calstar- 3
- Calkron -1010 PP
- Calkron -1020 PP
Wet Ground calcium carbonate (WGCC) for paint application
Our WGCC products are being used in Paint applications due to having its good dispersing property and finer particles as
Fimcarb – 55P, is a well dispersed wet ground calcium carbonate slurry and having uniformly ground particles with fineness of particles less than 2 microns are around 60%. This can be used in place of 8 micron (d97) calcium carbonate powder extenders. Uniform size will give better performance compared to powder extenders.
Fimcarb – 90P is ultrafine well dispersed slurry having 95% of the particles finer than 2 micron. With the sub-micron particles present in the slurry this product is having good tendency to work as Titanium Spacing agent. Our customers using this product could partially replace Titanium Dioxide with better spacing, maintaining the optical properties same as their normal product. Some of the customers have replaced Calcined Kaolin with this product.
Our slurry products are normally supplied at 75% solids basis, well dispersed and biocide added in the product. This enables end user to reduce their make down time as well as avoid spillage losses which are common in ultrafine powder extenders.
Recommended WGCC products
- Fimcarb
