Plastics & Polymers: High-Performance GCC for Strength & Efficiency

Enhancing curability, processability, and cost-effectiveness
GCC is a key functional filler in plastics, improving strength, durability, and efficiency. It enhances impact resistance, dimensional stability, and surface finish in applications like PVC pipes, films, and masterbatches—all while reducing costs.

At Cemix, we offer specialized GCC grades tailored for optimal performance across various plastic types, ensuring cost-effective, high-quality solutions for polymer production.

Key Benefits of Ground Calcium Carbonate (GCC) in Plastics & Polymers

GCC is widely used as a functional filler in the plastics industry, offering multiple advantages that improve both processing efficiency and final product performance.

1. Enhanced mechanical properties
  • Increased stiffness & strength: GCC improves the rigidity of plastics, making it ideal for PVC pipes, profiles, and sheets.
  • Improved impact resistance: Helps maintain toughness while reducing material costs.
  • Better dimensional stability: Reduces shrinkage and warping in injection-molded and extruded plastics.
2. Cost savings & higher filler loading
  • Cost-effective alternative: Replaces more expensive fillers like titanium dioxide (TiO₂) and silica, reducing raw material costs.
  • Increased filler content: Allows higher GCC loading in polymers, leading to overall cost reduction.
  • Lightweighting benefits: In certain formulations, GCC reduces material density, improving transport efficiency and sustainability.
3. Better processing & dispersion
  • Improved melt flow & processability: Reduces friction in extrusion, making production smoother and more energy-efficient.
  • Prevents clumping & agglomeration: Acid-coated GCC grades ensure better dispersion in polymer matrices.
  • Lower processing temperatures: Helps reduce energy consumption during extrusion and molding.
4. Surface finish & aesthetics
  • Enhanced oacity & whiteness: Improves brightness and hiding power, especially in films and coatings.
  • Smooth surface finish: Reduces surface roughness in plastic products, making them more visually appealing.
  • Minimizes sink marks: Helps prevent surface defects in injection-molded plastics.
5. Thermal & electrical insulation properties
  • Improved thermal conductivity: GCC helps manage heat dissipation in certain polymer applications.
  • Reduces shrinkage in high-temperature applications: Essential for thermoplastics and engineering plastics.
  • Electrical Insulation: Acts as a dielectric material in plastics used for cable coatings and electrical housings.
6. Environmental & sustainability benefits
  • Lower carbon footprint: GCC is a naturally occurring mineral, making it a more sustainable alternative to synthetic fillers.
  • Recyclability & circular economy: Compatible with recycled polymers, contributing to a greener plastic industry.
  • Reduced VOC emissions: Does not release harmful volatile organic compounds (VOCs), making it safer for indoor applications.

Enhanced Strength, Stability & Performance Across Plastic Applications

Enhances performance of  films & packaging
  • High opacity & improved printability
  • Lower density for lightweight packaging
  • Better mechanical strength in thin films
Enhances performance of  PVC pipes & profiles
  • Higher stiffness and impact resistance
  • Prevents shrinkage and warping
  • Improves surface smoothness
Enhances performance of  masterbatches & compounds
  • Optimized dispersion in polymer matrices
  • Cost-effective alternative to expensive pigments
  • Better color development & consistency
Why GCC from Cemix ?

GCC is an indispensable additive for the plastics & polymers industry. It offers mechanical reinforcement, cost savings, process efficiency, and sustainability benefits across a wide range of plastic applications.

With specialized GCC grades, Cemix can tailor formulations for specific performance needs, from rigid PVC pipes to high-opacity films and technical polymer applications.