Plastics Industry
Stearate-coated micronized calcium carbonate (CaCO₃) as a functional filler for the plastics industry — PP, PE, PVC and ABS compounding. 9 product grades AY 103K to AY 320K for film, packaging, profile extrusion and masterbatch production.
Calcium Carbonate in the Plastics Industry
Stearate-coated micronized calcium carbonate (CaCO₃) is one of the most critical functional fillers in the plastics industry. In plastic formulations it reinforces mechanical performance, enhances surface quality, shortens cycle times during processing and optimizes raw material cost — making it an essential ingredient for European plastic compounders, converters and processors.
At Aydın Madencilik, we manufacture stearate-coated calcium carbonate at our Bursa Gemlik facility using German Hosokawa Alpine micronization technology and advanced coating lines. Our coated grades are widely used in the production of polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC) and ABS plastics — across film, packaging, profile extrusion, injection moulding, pipe and masterbatch applications.
Coated Calcium Carbonate in PP and PE Production
In polypropylene (PP) and polyethylene (PE) production, coated calcium carbonate improves compatibility between the polymer matrix and the mineral filler. Stearic-acid surface treatment ensures homogeneous dispersion in the resin and improves processability during extrusion. Our fine grades AY 103K (3 µm) and AY 106K (6 µm) deliver surface smoothness in thin film and packaging applications, while AY 210K (10 µm) and AY 212K (12 µm) are preferred for injection moulding processes — common choices for European PP and PE compounders.
PVC Profile, Window and Pipe Production
In the PVC sector, calcium carbonate acts as the primary functional filler in profile and pipe formulations, improving impact strength and dimensional stability of the finished product. Our AY 108K (8 µm) and AY 215K (15 µm) grades are widely used in PVC window profile, door profile and infrastructure pipe production across European converters.
Plastic Packaging and Film Production
In thin film and flexible packaging production, particle size and coating quality of the calcium carbonate are critical. Our AY 103K (3 µm) and AY 107K (7 µm) grades provide anti-block performance in film extrusion while minimizing loss of transparency. From food-grade packaging film to industrial shrink film and stretch film, our coated grades serve a wide range of European film converters.
Masterbatch and Compound Production
For masterbatch — the plastics industry’s key intermediate product — high-loading coated calcium carbonate is the standard choice. Our AY 318K (18 µm) and AY 320K (20 µm) coarse-micron coated grades deliver ideal dispersion and processability in CaCO₃ filler masterbatch production at 70–80% loading — supporting both internal compounding and external masterbatch supply to European plastics processors.
Why Choose Aydın Madencilik for Plastics-Grade Calcium Carbonate?
High-purity raw material from our own licensed calcite quarry sites is surface-treated with stearic acid on advanced coating lines, producing coated calcium carbonate that meets the plastics industry’s demanding requirements. Operating from our 15,000 m² production facility in Bursa Gemlik, Turkey, since 1999, we provide technical support, sample services and laboratory certificates of analysis. Proximity to Gemlik Port enables direct maritime shipments to European plastic compounders and converters in Germany, Italy, France, Spain, the Netherlands, Belgium, Poland and the United Kingdom.
Calcium Carbonate Plastics Industry Advantages in the Industry
Stearic Acid Surface Coating
Advanced in-house coating lines apply uniform stearic-acid surface treatment, delivering excellent polymer compatibility and homogeneous dispersion across PP, PE, PVC and ABS plastic compounds.
Wide Coated Product Range
9 coated product grades between 3 and 20 microns provide a tailored functional filler option for every plastic type — film, packaging, injection moulding, profile extrusion and masterbatch.
Enhanced Mechanical Performance
Coated calcium carbonate improves tensile strength, impact resistance and dimensional stability of the finished plastic part — a critical advantage for converters supplying European OEMs and packaging customers.
Higher Production Efficiency
Stearate-coated calcite improves processability during extrusion and injection moulding, shortening cycle times and reducing energy consumption — delivering measurable cost savings for European plastic compounders.
Laboratory-Backed Quality
Every production batch is tested in our on-site laboratory for particle size, coating ratio, moisture and whiteness — providing certificates of analysis required by demanding European plastic compounders.
Plastics Industry Frequently Asked Questions
Why is coated calcium carbonate preferred in plastic production?
Coated calcium carbonate is surface-treated with stearic acid for superior compatibility with the polymer resin. Natural calcite tends to agglomerate inside the plastic matrix, whereas coated grades disperse homogeneously. This significantly improves mechanical performance, surface quality and processability of the finished plastic product — making coated grades the standard choice for PP, PE, PVC and ABS production in Europe.
Which micron sizes of coated calcium carbonate are used in PP and PE production?
In polypropylene (PP) and polyethylene (PE) production, the appropriate micron size depends on the end application. For thin film and packaging, fine grades between 3 and 7 microns are preferred (AY 103K, AY 106K, AY 107K). For injection moulding, mid grades between 10 and 12 microns are typical (AY 210K, AY 212K). Aydın Madencilik’s Bursa Gemlik facility delivers consistent micronization using Hosokawa Alpine technology.
What role does calcium carbonate play in PVC profile production?
In PVC profile formulations, calcium carbonate is the primary functional filler. It improves impact strength, provides dimensional stability and enhances surface quality. Our AY 108K and AY 215K coated grades are widely used in PVC window profile, door profile and pipe production across European converters.
Does calcium carbonate affect transparency in plastic film production?
Calcium carbonate is inherently an opaque material, but fine-micron coated grades minimize transparency loss when used at low loadings. AY 103K, for example, provides anti-block performance in film extrusion while preserving acceptable transparency — an important balance for food packaging and shrink film applications.
Which calcium carbonate grades are used in masterbatch production?
For CaCO₃ masterbatch production at 70–80% filler loading, mid- and coarse-micron coated grades are required. Our AY 318K (18 µm) and AY 320K (20 µm) grades deliver ideal dispersion and stable extrusion performance in high-loading masterbatch production — supplied to European masterbatch converters from our Bursa Gemlik facility.
How is the price difference between coated and natural calcite balanced in plastic production?
Coated calcium carbonate is more expensive per kilogram than natural calcite, but the advantages it delivers in plastic production offset the price difference. Higher achievable filler loadings, reduced polymer resin requirement, lower scrap rates and shorter cycle times all reduce total production cost — typically delivering a net positive return for European plastic compounders.
How does Aydın Madencilik serve the European plastics industry logistically?
Our facility is located in Gemlik, Bursa, with direct access to Gemlik Port. This enables maritime shipments to European plastic compounders and converters in Germany, Italy, France, Spain, the Netherlands, Belgium, Poland and the United Kingdom — as well as Mediterranean and global export markets. Container, big bag and bulk delivery options are available for high-volume supply.
Can I request a sample of coated calcium carbonate for plastic compound evaluation?
Yes, we provide a free sample service for all our coated calcium carbonate grades used in plastic production. Samples prepared in our on-site laboratory at the Bursa Gemlik facility are shipped together with a technical data sheet and a certificate of analysis. Contact our technical sales team for a sample request and recommended grade selection for your specific PP, PE, PVC or ABS application.
