CR‑5511 is a modified PETG (Polyethylene Terephthalate Glycol‑modified) resin, an amorphous copolyester thermoplastic widely used for injection molding, extrusion, and forming transparent or semi-transparent parts. PETG CR‑5511 resin is designed for applications requiring high clarity, good impact resistance, and excellent processability.

This resin is particularly suitable for packaging, display shells, thin-wall structures, and other parts where visual aesthetics are critical. Some suppliers promote it as a high-flow, high-clarity, impact-resistant PETG resin.

Property

Unit

Notes / Typical Range

Density

g/cm³

Determines physical stability

Melt Flow Index (MFI)

g/10 min

Indicates material flowability

Color Values (L, a, b)

—

Measures brightness and color neutrality

COOH End Group Content

mmol/kg

Low values indicate better thermal stability

Heat Distortion Temperature

°C

Indicates thermal performance

Tensile Strength

MPa

Mechanical durability

Elongation at Break

%

Flexibility and impact resistance

Light Transmittance

%

Optical clarity

Performance Features of PETG CR‑5511 Resin

  • High Transparency: Excellent light transmittance for clear and glossy surfaces, ideal for display and packaging applications.
  • High Flowability: Ensures easy mold filling, suitable for thin-wall, thick-wall, or complex-shaped parts.
  • Good Impact Resistance: Maintains mechanical strength while providing optical clarity.
  • Excellent Processability: Compatible with injection molding, extrusion, and potentially blow molding or pellet-based 3D printing.

Typical Applications

  • Packaging and Display Cases: Transparent or semi-transparent housings for cosmetics, electronics, and gifts.
  • Thin-Wall Transparent Components: Lids, covers, and display windows.
  • Thick-Wall Transparent Parts: High-clarity containers and structural parts.
  • 3D Printing / Specialty Applications: Can be used as raw pellets for additive manufacturing.

Processing Guidelines

  1. Storage & Drying: Keep in low-humidity conditions to maintain clarity and processing stability.
  2. Injection Molding: High-flow properties enable thin-wall and complex designs. Optimize mold temperature, nozzle temperature, cooling time, and injection speed to minimize warpage and internal stress.
  3. Coloring: Transparent parts require careful masterbatch selection to prevent color shift or loss of clarity.
  4. Other Processes: Suitable for extrusion, sheet/film forming, and 3D printing pellets. Performance in these processes should be verified through testing.

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