Calcium carbonate from China
Ultrafine & active calcium carbonate, engineered for performance
We supply surface-treated and ultrafine CaCO₃ grades for printing ink, masterbatch, BOPP film, sealant, adhesive and coating producers. Better dispersion, stable filler loading and consistent whiteness — not just a low-cost filler.
Industrial selection path
A clearer path from material fit to repeat shipment
A practical evaluation path for calcium carbonate: application fit, technical documents and supply discussion.
Application
Match the grade to the process
Start from ink, masterbatch, film, sealant, adhesive or coating needs before comparing particle size and surface treatment.
Proof
Validate with TDS, COA and MSDS
TDS, COA and MSDS are available on request for grade review.
Export
Move from sample review to supply discussion
Share destination, packaging and timeline so we can prepare practical next steps.
Factory depth
From mineral source to export shipment, one controlled chain
SokoChem connects mineral sourcing, ultrafine processing, application review and export service for global customers.
Mineral source
Northern Guangdong limestone base
Mineral sourcing from the Guangdong limestone area supports stable whiteness and a cleaner raw-material story for repeat orders.
Production
Grinding, classification and surface treatment
Ultrafine processing and active coating are managed around particle size, surface compatibility and application fit.
R&D
10+ engineers for application review
Engineering support focuses on ink dispersion, film/masterbatch processing, sealant rheology and grade selection before quotation.
Export
Global shipment support
We support documents, packaging and shipment coordination for customers in global markets.
Why formulators choose SokoChem
Engineered dispersion
Ultrafine particle size and surface treatment give cleaner dispersion, anti-settling behavior and stable rheology in demanding systems.
Consistent quality
Whiteness above 96 and controlled particle-size distribution support stable formulation results.
Application-matched grades
We recommend a grade based on your application, particle size, whiteness and coating needs — not a one-size-fits-all powder.
Export-ready
Support for global shipments, export documents and clear communication from sample review to order.
Two engineered product lines
Matched to ink/adhesive formulation and to plastics/sealant processing.
Ultrafine grades for ink & adhesive
SC-9108 / SC-9208 / SC-9508 — sub-micron uncoated CaCO₃ for printing ink, adhesives and coatings. Improves dispersion, gloss, hiding power and anti-settling, and can reduce part of TiO₂ usage.
View all productsActive grades for plastics & sealant
SC-9108C — fatty-acid coated, hydrophobic, activation above 98%. Designed for filler masterbatch, BOPP film, silicone/PU sealant, hot-melt adhesive and PVC compounding.
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Application-first selling
Buyers do not buy powder. They buy fewer defects, smoother processing and stable cost.
Each inquiry starts with the customer process: ink, masterbatch, film, PVC, sealant, adhesive or coating. Then we match particle size, coating and documents.
Ink and coating surface
Fine particles are evaluated for dispersion, gloss, hiding power, anti-settling and possible TiO₂ cost support after testing.
Masterbatch and PVC
Active coating helps polymer compatibility and stable filler loading in PP, PE, PVC and filled compound systems.
BOPP and breathable film
Surface-treated CaCO₃ can be tested for white spots, roughness, film smoothness and processing stability.
Sealant and adhesive
Hydrophobic active grades are reviewed for rheology, compatibility, appearance and formulation cost balance.
Built for your application
From masterbatch lines to ink kitchens — we match the grade to the job.
Filler masterbatch
Coated active CaCO₃ for breathable-film and general filler masterbatch — hydrophobic compatibility and stable, high filler loading.
BOPP & breathable film
Fine, surface-treated grades for film masterbatch where dispersion and consistency are critical.
Printing ink
Ultrafine uncoated grades for water- and solvent-based inks — dispersion, gloss, hiding power and reduced TiO₂ usage.
Sealant & adhesive
Coated active CaCO₃ for silicone/PU sealant, EVA hot-melt and adhesives — rheology control and stable filler loading.
Coatings & paint
Functional extender for water- and solvent-based coatings — whiteness, opacity and cost balance.
Adhesives
Ultrafine and active grades for adhesive systems requiring compatibility and controlled rheology.
PVC compound & pipe
Active grades for PVC compounding and profiles where treated fillers improve processing.
Tell us your application and we'll recommend the right grade
Share your application and target specs. We will suggest suitable grades and available technical documents.