High-Performance PEN Resin
TEIJIN PEN Resin for Demanding Transparent Applications
PEN, Polyethylene Naphthalate, is a high-performance polyester resin. It provides stronger heat resistance, gas barrier performance, chemical resistance, and low adsorption compared with many common transparent plastics.
Supply Grades of PEN pellets
| Type | Grade No. | Manufacturer | Brand | Grade/Features | Use/Applications |
|---|---|---|---|---|---|
| PEN | TN-8065S | TEIJIN CHEMICALS | General injection molding grade, low oxygen permeability, good barrier performance, 80 MPa tensile strength, No Break unnotched Charpy impact | Barrier packaging parts; precision injection molded parts; electronic housings; heat-resistant functional parts; medical/healthcare packaging components |
Features Overview
Gas Barrier Performance
Suitable for containers and molded parts requiring reduced oxygen and vapor transmission.
Chemical Resistance
Designed for applications where PC, PET, or COC may not provide enough chemical resistance.
Low Adsorption
Useful for pharmaceutical and medical container applications requiring reduced material interaction.
Higher Heat Resistance
Heat-resistant PEN development grades provide HDT up to 147°C at 0.45 MPa.
Transparent Molding
Suitable for transparent medical containers and inspection-friendly precision parts.
Dimensional Stability
YJ-0157 and YJ-0158 show 0% dimensional change rate under listed test conditions.
Available PEN Resin Grades
Grade selection depends on heat resistance, flow, transparency requirement, barrier performance, and final application validation.
Standard Transparent PEN
TN-8065S
| Density | 1,330 kg/m³ |
| MVR | 15 cm³/10 min |
| HDT, 0.45 MPa | 107°C |
| Oxygen Barrier | 12 |
| Water Vapor Barrier | 0.3 |
High Heat-Resistant Grade
YJ-0157
| Density | 1,320 kg/m³ |
| MVR | 11 cm³/10 min |
| HDT, 0.45 MPa | 138°C |
| Tensile Strength | 97 Mpa |
| Dimensional Change | 0% |
Higher Heat-Resistant Grade
YJ-0158
| Density | 1,310 kg/m³ |
| MVR | 7 cm³/10 min |
| HDT, 0.45 MPa | 147°C |
| Tensile Strength | 100 Mpa |
| Dimensional Change | 0 % |
Application for High-Performance PEN
PEN is suitable for transparent and barrier-related applications requiring stronger performance than standard PET.
Medical Containers
Transparent containers requiring chemical resistance and barrier performance.
Pharmaceutical Packaging
Packaging applications requiring low adsorption and stable barrier properties.
Barrier Parts
Molded components where oxygen and vapor transmission need to be reduced.
Diagnostic Components
Transparent precision molded parts for inspection-friendly medical device design.
Heat-Resistant Parts
Applications requiring higher HDT than standard PET materials.
Chemical-Resistant Parts
Parts exposed to selected chemical environments after validation testing.
Low-Adsorption Containers
Useful for material-contact applications requiring reduced adsorption risk.
Precision Molding
Suitable for transparent and dimensionally controlled molded components.
High-Performance PEN Resin FAQ
Yes. PEN can be positioned as an engineering plastic or high-performance polyester resin. It provides stronger heat resistance, gas barrier performance, chemical resistance, and dimensional stability than standard PET.
TN-8065S is a standard transparent PEN resin grade. It provides chemical resistance, gas barrier performance, low adsorption, and an HDT of 107°C at 0.45 MPa.
YJ-0157 and YJ-0158 are TEIJIN high heat-resistant PEN development grades. They provide HDT values of 138°C and 147°C at 0.45 MPa respectively.
PEN is preferred when better heat resistance, gas barrier performance, chemical resistance, and low adsorption are required. PET is still more common for general packaging.