Eltex® Superstress™ CAP508S3

Category: HDPE Copolymer , High Density Polyethylene Copolymer
Manufacturer: INEOS Olefins & Polymers Europe
Trademark: Eltex®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: FTIRA7_Eltex-Superstress-CAP508S3.pdf
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Message
Eltex® Superstress™ CAP508S3 is a High Density Polyethylene copolymer manufactured by INEOS Olefins & Polymers Europe using its proprietary supported catalyst & process, particularly intended for the injection and compression moulding of screw caps for the packaging of beverages. It is especially suited for applications requiring excellent stress cracking resistance and enhanced processability. Thanks to high purity and excellent organoleptic properties it is well suited for packaging in direct contact with beverages and sensitive food.

Typical applications
  • Injection Moulding and Compression Moulding of Caps & Closures for the packaging of sparkling water and carbonated soft drinks; especially in reduced weight cap designs
  • Injection Moulding of thin wall packaging, especially for the food industry

Benefits and Features
  • Very good processability
  • High stress cracking resistance
  • Excellent quality controlled organoleptic properties
  • Grade containing a medium effective Slip Agent to reduce the friction at application and opening of caps.
Note : Exposure to direct sunlight has to be avoided as the slip agent is light sensitive and its degradation can give off-taste to the beverage.
General Information
Additive
  • Moderate smoothness
Features
  • High purity
  • High ESCR (Stress Cracking Resistance)
  • Copolymer
  • Workability, good
  • Good sensory characteristics
  • Moderate smoothness
Uses
  • Packaging
  • Thin wall packaging
  • Shield
  • Food packaging
  • Shell
RoHS Compliance
  • Contact manufacturer
Processing Method
  • Compression molding
  • Injection molding
PhysicalNominal ValueUnitTest Method
Density 0.953g/cm³ISO 1183
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)1.8g/10 minISO 1133
Environmental Stress-Cracking Resistance (40°C)32.0hrInternal method
MechanicalNominal ValueUnitTest Method
Tensile Modulus (23°C)1000MPaISO 527-2/1B
Tensile Stress (Yield, 23°C)26.0MPaISO 527-2/1B
ImpactNominal ValueUnitTest Method
Charpy Unnotched Impact Strength (23°C)5.5kJ/m²ISO 179
Additional Information
In order to preserve the excellent organoleptic properties, it is important not to exceed a melt temperature of 250°C during processing.
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