GP-OPTIFILL & GP-DuraFlex FAQ
GP-DuraFlex polyolefin toughness modifier granules

GP-DuraFlex – Polyolefin Toughness Modifier

Improves Toughness, Flexibility, Impact Strength & Mechanical Performance

GP-DuraFlex is an advanced polyolefin modifier designed to improve flexibility, elongation at break, impact strength and overall mechanical performance in LDPE, LLDPE, HDPE and PP applications while maintaining excellent processing stability.
✔ Improves toughness and flexibility
✔ Increases impact strength
✔ Enhances puncture resistance
✔ Maintains stable processing
✔ Compatible with LDPE, LLDPE, HDPE & PP
GP-DuraFlex enhances puncture resistance, tensile strength and flexibility, allowing manufacturers to produce thinner, stronger and more durable plastic products without compromising processing stability.
The problem we solve
Thinner film means savings, but often leads to:
reduced strength,
more complaints,
and problems with punctures and tears.
GP-DuraFlex  helps restore and enhance the mechanical performance of polyolefin products while maintaining stable processing.

GP-DURAFLEX acts as a technological quality safeguard:

  • Improves toughness and impact resistance.
  • Increases flexibility and elongation at break.
  • Enhances the mechanical performance of polyolefin products.
  • Supports stable and reliable processing.

Business benefits

  • Reduced production costs
  • Improved product quality
  • Lower reject rates
  • Better process stability
  • Improved performance when using regranulate

Technological benefit

  • Enhanced impact and puncture resistance
  • Increased tensile strength
  • Improved flexibility and elongation at break
  • Stable mechanical properties
  • Compatible with LDPE, LLDPE, HDPE and PP
 

Who is GP-DURAFLEX for?

  • Plastic processors
  • Film and packaging manufacturers
  • Injection moulding companies
  • Pipe, sheet and profile manufacturers
  • Companies using virgin and recycled polymers

A functional modifier for improved mechanical performance

A modern polyolefin modifier that improves the mechanical performance of plastic products while helping manufacturers optimise production efficiency and reduce production costs It is also ideal for applications containing regranulate, where it helps maintain stable product quality and processing.
  • Improved impact resistance
  • Increased flexibility
  • Higher elongation at break
  • Enhanced tensile strength
  • Improved toughness
  • Better performance with regranulate
  • Stable processing
  • Compatible with LDPE, LLDPE, HDPE and PP
 

Cost-effective performance enhancement

GP-DuraFlex helps improve the mechanical performance of polyolefin products while optimising production costs. It can be used together with virgin materials, recycled polymers and filler masterbatches to achieve a balanced combination of strength, flexibility and processing stability.
  • Recommended dosage: 1–3%
  • Easy to incorporate into existing formulations
  • Compatible with filler masterbatches
  • Suitable for virgin and recycled materials

Applications:

Suitable for a wide range of plastics processing technologies:
  • Blown film extrusion
  • Cast film extrusion
  • Pipe extrusion
  • Sheet extrusion
  • Profile extrusion
  • Injection moulding
  • Blow moulding
Compatible with:
LDPE • LLDPE • HDPE • PP

Ideal for recycled materials

  • Improves impact resistance and flexibility
  • Compensates for the loss of mechanical properties
  • Supports stable product quality
  • Enables higher recycled content
  • Maintains reliable processing performance

Why choose GP-DuraFlex?

  • Higher product quality
  • Improved mechanical performance
  • Stable processing
  • Increased recycled content
  • Lower manufacturing costs
  • Wide processing compatibility

Why Choose GP-DuraFlex?

GP-DuraFlex offers manufacturers an effective solution for improving the mechanical properties of polyolefin products without significantly affecting processing conditions. It provides excellent flexibility, high elongation at break, improved puncture resistance and better impact strength, making it suitable for demanding packaging applications.
The product is compatible with LDPE, LLDPE, HDPE and PP resins and can be used in blown film, cast film, injection moulding and extrusion applications. GP-DuraFlex helps manufacturers produce stronger, thinner and more durable plastic products while maintaining stable production and reducing the risk of film breakage during processing.
PropertyValue
ProductGP-DuraFlex
TypePolyolefin Toughness Modifier
CarrierPE
AppearanceNatural pellets
Recommended dosage1–3%
ApplicationsLDPE, LLDPE, HDPE, PP
ProcessingBlown film, Cast film, Extrusion, Injection