Enhancing Durability, Processability, and Performance in Rubber Applications

Ground Calcium Carbonate (GCC) in Rubber & Elastomers: Strength, Flexibility & Cost Efficiency
Ground Calcium Carbonate (GCC) is an essential filler in rubber and elastomer applications, improving mechanical strength, flexibility and processing efficiency. It is widely used in tyres, industrial rubber goods, footwear, hoses, belts and latex products to optimise performance and cost-effectiveness.
Key Benefits of Ground Calcium Carbonate (GCC) in Rubber & Elastomers
1. Improved mechanical strength & abrasion resistance
  • Improved tensile & tear strength: Reinforces rubber, increasing durability.

  • Higher abrasion resistance: Extends product lifespan in high-wear applications.

2. Improved flexibility & elasticity
  • Maintains elastic properties: Allows rubber to retain flexibility without excessive stiffness.

  • Better compression set resistance: Prevents permanent deformation under pressure.

  • For applications like industrial rubber, seals, and flexible elastomers, where the balance of both strength and stretchability are crucial, GCC provides the optimal balance between flexibility and strength.

    • Smaller particles (2 μm) enhance mechanical reinforcement, improving tensile strength without making the material too stiff.

    • Medium particles (3 μm, 5 μm) help maintain elasticity and flexibility, preventing excessive hardness while ensuring durability.
3. Processability & dispersion in polymer matrices
  • Improved mixing & flow properties: Enhances processing in rubber extrusion and molding. Reduces clumping and improves uniformity.

  • Optimized dispersion: Ensures uniform filler distribution for consistent product quality.

  • GCC grades with particle sizes of 3 μm, 5 μm, and 10 μm are ideal for rubber compounding because they help optimize viscosity, mixing time, and filler distribution, making them ideal for industrial rubber, hoses, belts, and other high-volume rubber products.

4. Cost efficiency & reduced polymer demand
  • Reduces expensive raw material use: Allows higher GCC loading to replace costly polymer resins.

  • Enhances volume & bulk properties: Maintains product integrity while lowering costs.

  • The 5 μm and 10 μm GCC grades make formulations more cost-effective by reducing the use of expensive polymers while maintaining good processability and mechanical properties.

5. Heat & chemical resistance
  • Thermal stability: Ensures performance under high-temperature conditions.

  • Chemical resistance: Protects against degradation from oils, fuels, and environmental exposure.

  • 1 μm and 2 μm GCC acid-coated are ideal for high-performance rubber applications requiring superior dispersion, reinforcement, and chemical resistance.

Applications of GCC in Rubber & Elastomers

Tires & Automotive Components
  • Reinforcement in tread compounds: Improves durability and rolling resistance.

  • Enhanced wear & abrasion resistance: Extends tire lifespan.

Industrial Hoses & Belts
  • Higher tensile strength & flexibility: Essential for durable, high-performance rubber products.

  • Improved processability: Ensures easier extrusion and molding.

Footwear & EVA Soles
  • Better wear resistance: Enhances the longevity of rubber shoe soles.

  • Lightweighting with durability: Enables high-performance yet cost-efficient formulations.

Latex-based products (gloves, balloons, coatings)
  • Increased tensile strength: Improves mechanical properties while maintaining elasticity.

  • Enhanced stability in latex formulations: Prevents premature coagulation and settling.

Sealants & gaskets
  • Higher chemical resistance: Protects against environmental degradation.

  • Long-term elasticity retention: Prevents cracking and hardening over time.

Cemix's High-Quality GCC for Rubber & Elastomers

Cemix provides high-purity GCC grades designed for optimal reinforcement, flexibility, and cost-efficiency in rubber and elastomer applications. Our precise particle size distribution and advanced surface treatment options ensure superior processing performance, durability, and material compatibility across various rubber industries.

Contact us today for customized GCC solutions in rubber and elastomers.

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