Calcium Carbonate (CaCO3) Filler & Masterbatch — Toronto, GTA & Canada
Allzone Trading is a Toronto-area distributor of ground calcium carbonate (GCC), precipitated calcium carbonate (PCC) and CaCO3 filler masterbatch for plastic converters across Ontario, Quebec and Western Canada. We carry coated (stearic-acid surface-treated) and uncoated grades from D50 1.5 µm down to fine 0.8 µm powders, plus ready-to-extrude PE/PP carrier masterbatch at 60–80% loading.
At a glance
- Product
- Calcium Carbonate (CaCO3) Filler & Masterbatch
- Grades
- GCC Uncoated D50 1.8 µm · GCC Stearic-coated D50 1.5 µm +3 more
- Typical applications
- Raffia woven sacks and FIBC liners · HDPE / LLDPE blown film (T-shirt bags, can liners) · PP injection moulding (caps, crates, automotive)
- Packaging
- 25 kg PP bags · 1,000 kg jumbo / FIBC · 20-ton FCL

- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
GCC Uncoated D50 1.8 µm
Whiteness ≥ 96, Brightness ≥ 94, +325 mesh ≤ 0.05%
GCC Stearic-coated D50 1.5 µm
Oil absorption 18–22 g/100g, moisture ≤ 0.3%
PCC D50 0.8 µm
Specific surface area 8–11 m²/g — for PVC and rigid film
CaCO3 Masterbatch 75% in PE
MFI 4–6, ash 73–77%, raffia / blown film
CaCO3 Masterbatch 80% in PP
MFI 8–12, ash 78–82%, injection / woven sacks
Typical applications
- Raffia woven sacks and FIBC liners
- HDPE / LLDPE blown film (T-shirt bags, can liners)
- PP injection moulding (caps, crates, automotive)
- PVC pipe and rigid profile compounding
- Cable jacket compounds
- Stretch & shrink film cost reduction
Why Canadian buyers choose us
- Container-direct sourcing with Ontario logistics partner — 24–48 h dispatch across the GTA
- Direct mill / refinery sourcing from tier-1 producers, no middle layer
- Full SDS, COA, food-grade / kosher / halal certificates on request
- LTL and FTL freight across Ontario, Quebec, Alberta and BC
- Volume pricing from 25 kg pails to full 20-ton container loads
Technical & procurement detail
Coated vs uncoated calcium carbonate — which one for your line?+
Uncoated CaCO3 is the lowest cost per kilogram but tends to absorb moisture and lower MFI. Stearic-acid-coated grades cost roughly 8–12% more but disperse cleanly in PE and PP at letdown ratios above 30%, protect screw barrels from build-up and reduce die-lip drool on blown-film lines. For Canadian converters running winter-grade resin with high stiffness requirements, coated GCC at D50 1.5 µm is the standard recommendation.
CaCO3 masterbatch vs raw powder for plastic converters+
Buying CaCO3 as a 75–80% loaded masterbatch eliminates dust on the shop floor, removes the need for a separate gravimetric feeder and gives consistent dispersion run to run. For Ontario converters running multiple SKUs per day, the small carrier cost is more than offset by lower scrap rates and operator safety. Allzone sources raffia-grade (PE carrier, MFI 4–6) and injection-grade (PP carrier, MFI 8–12) via our Ontario logistics partner.
Logistics from Toronto across Canada+
Most GTA customers receive same-week LTL delivery on pallets of 1,000 kg FIBC. Quebec and Maritime customers ship in 24-ton FTL truckloads ex-Ontario logistics partner. Direct container drops to converters in Mississauga, Brampton, Vaughan, Concord, Markham and Woodbridge are scheduled weekly. Western Canada (Calgary, Edmonton, Vancouver) ships rail-intermodal in 20-ton FCL.
Frequently asked questions
What is the minimum order for calcium carbonate in Toronto?+
We sell from a single 25 kg bag up to a full 20-ton FCL container. For first-time orders we recommend a 1,000 kg FIBC trial.
Do you carry food-grade calcium carbonate?+
Yes — our PCC 0.8 µm grade carries a food-contact and pharma-grade COA. Documentation is provided per shipment.
Can you match a specific CaCO3 masterbatch specification?+
Yes. Send us your current TDS or a 2 kg sample and our supplier lab network can match MFI, ash, moisture and dispersion on a custom carrier (PE, PP, PS, PA, PET).
How fast can you deliver across the GTA?+
Orders confirmed before 11 am ship the same day with next-business-day delivery anywhere from Oshawa to Burlington.
Technical knowledge for Calcium Carbonate (CaCO3) Filler Supplier — Toronto & Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Foundation Articles
Application Guides
Comparison Articles
Buying Guides
Troubleshooting Guides
Grades in this mineral family
The 2 grades we currently supply in this family.
Micronized Calcium Carbonate Filler (1250 Mesh)
Surface-treated ultra-fine CaCO3 for PP woven sacks, jumbo bags (FIBC), industrial crates, transit pallets and construction profiles.
Open grade F-FF5000Ultrafine Calcium Carbonate — 5000 Mesh GCC
Fine ground calcium carbonate (GCC) filler for polyolefin film, sheet and rigid PVC where cost-per-kilogram of the finished compound is the primary commercial driver. Coated vs uncoated status, particle-size distribution and brightness values are confirmed against the batch TDS/COA at RFQ. Food-contact documentation for the finished converter application is confirmed per shipment on request.
Open gradeSame mineral, other delivery form
You are looking at calcium carbonate supplied as a mineral powder for your own compounding. The same mineral is also available as a let-down concentrate on a polymer carrier, which you dose directly at the machine.
Micronized Calcium Carbonate Filler (1250 Mesh)
Mineral filler — surface-treated ultra-fine CaCO3 for PP woven sacks, jumbo bags (FIBC), industrial crates, transit pallets and construction profiles.
Ultrafine Calcium Carbonate — 5000 Mesh GCC
Mineral filler — fine ground calcium carbonate (GCC) filler for polyolefin film, sheet and rigid PVC where cost-per-kilogram of the finished compound is the primary…
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Need a quote on Calcium Carbonate (CaCO3) Filler & Masterbatch?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.
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