Polyethylene or polypropylene filled with calcium carbonate or talc.
- CaCO₃ · talc
- Up to 50% filler
- Higher rigidity
Process overview
Filled polyolefins for higher performance.
We produce polyethylene and polypropylene compounds filled with calcium carbonate or talc, formulated to increase rigidity, thermal resistance and dimensional stability of the finished product. The filler is gravimetrically dosed, uniformly dispersed and validated in the lab.
Recipes can include filler quotas up to 70% by mass, depending on the end-use sector. We have screw profiles suited to anti-shear additivation to preserve the compound's mechanical properties.
Technical specs
Key parameters at a glance.
Base polymers
PE / PP
Fillers
CaCO₃ · talc
Filler %
up to 70%
Higher rigidity
Flexural modulus ↑
Output form
Pellets
Target sectors
Automotive · construction
How we do it
Six phases for filled compounds.
Disperse the filler uniformly while preserving the polymer's properties.
Formulation validation
Definition of the optimal filler percentage versus the customer spec: pilot trials and mechanical tests.
Output: Validated recipePolymer and filler intake
Goods inwards of PE/PP and mineral fillers (CaCO₃, talc) with documentation qualification and traceability.
High-precision gravimetric dosing
Hundredth-of-a-percent weighing of polymer, filler, additives and masterbatches to ensure compound repeatability.
Output: Calibrated blendOptimised twin-screw extrusion
Screw profile and thermal curve calibrated for uniform filler dispersion, avoiding polymer degradation.
Pelletisation
Dimensionally consistent pellets, ready for the customer’s moulding or extrusion lines.
Lab QC and release
Density, MFI, flexural modulus and impact tests. CoA with the actual values measured on the batch.
Output: Batch CoA
Use cases
Where a filled compound is needed.
Sectors where rigidity, thermal stability and raw-material cost have to be optimised at the same time.
6 sectors served
Automotive
Interior parts, bumpers, under-the-hood: PP filled with talc for elastic modulus, dimensional stability and thermal resistance.
Construction
Pipes, fittings and technical profiles where mineral filler increases rigidity without compromising outdoor durability.
Appliances
Structural and functional parts with high mechanical performance and thermal stability up to working temperatures.
Industrial packaging
Crates, pallets and reusable containers where mineral filler increases rigidity and lowers final cost.
Furniture
Injection-moulded structural parts with controlled surface and mechanical performance in line with high-modulus virgin.
Technical articles
Light industrial components where filler lowers cost and shrinkage while keeping working performance.
Compatible materials
Polymers, fillers and additives available
11 grades · custom-spec
- PE-LD
- PE-HD
- PP homopolymer
- PP copolymer
- Coated CaCO₃
- Uncoated CaCO₃
- Lamellar talc
- Micronised talc
- Compatibilisers
- UV stabilisers
- Antioxidants
ISO 9001 — Quality Management System
ISO 9001 certification is the operational foundation of every production: from raw-material intake to batch release, every step is tracked and documented. It is the minimum standard that the major chemical and petrochemical groups demand of their industrial partners — and the standard Green Plast guarantees, batch after batch.
- Annual surveillance audit
- Lot-by-lot traceability
- CoA with every shipment
Scope of certification
- Compounding
- Formulation
- Quality control
- Logistics
- 35+
Years of certified operation
- 100%
Batches with CoA
- 4
Stages controlled end-to-end
- EU
Tracked shipments
Technical questions
Quick answers on filled compounds.
The most frequent questions from R&D departments evaluating virgin replacement.
Can’t find your answer?
Speak directly with a Green Plast technician.
Choose top-quality plastics processing.
Producing high-performance plastic compounds is our specialty. We analyze requirements and formulations, work in partnership with our customers and — thanks to decades of experience — deliver tailored, optimized and reliable processing for highly specific, qualified products.