Description
WS-502 is a premium-grade PETG thermoplastic polyester engineered for PETG shrink sleeve labels, film/sheet extrusion, and 3D printing filament applications. It delivers an excellent balance of transparency, toughness, and processing stability, making it a dependable alternative to PVC and conventional PET materials in demanding industrial environments.
This material is designed to support industries where optical clarity, formability, and mechanical reliability are critical. It is widely adopted in packaging, labeling, medical, food-contact, and general consumer product applications.
Product Overview & Key Characteristics
WS-502 PETG resin offers a combination of performance advantages that make it suitable for high-end forming and extrusion processes:
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High optical clarity with excellent light transmittance for visually demanding applications
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Strong impact resistance, significantly outperforming standard modified acrylic materials
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Low processing temperature, enabling efficient thermoforming and extrusion stability
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Consistent shrink behavior, suitable for shrink sleeve label production
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Good chemical compatibility with other copolyesters for multilayer sheet systems
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Stable processing performance across sheet, film, bottle, and container production
It is particularly suitable for applications requiring high transparency, flexibility, and easy molding characteristics.
Typical Applications
WS-502 is suitable for a wide range of industrial and commercial uses, including:
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PETG shrink sleeve labels and packaging films
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Thermoformed sheets and rigid/semirigid plates
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Transparent bottles and molded containers for food, pharmaceutical, and daily-use products
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Indoor and outdoor display panels, signage systems, and vending machine panels
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Furniture components, protective covers, and construction or equipment baffles
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Composite sheet systems such as GAG and G-APET structures
Due to its toughness and clarity, it is frequently selected for both functional and aesthetic plastic components.
Technical Data – WS-502 PETG Resin
1. Physical Properties
| Property | Unit | Test Standard | Value |
|---|---|---|---|
| Intrinsic Viscosity | dL/g | Ubbelohde viscometer | 0.780 ± 0.015 |
| Specific Gravity | g/cm³ | ASTM D792 | 1.27 |
| Moisture Absorption | % | ASTM D570 | 0.12 |
2. Mechanical Properties
| Property | Test Condition | Unit | Standard | Value |
|---|---|---|---|---|
| Tensile Strength @ Yield | 50 mm/min | kgf/cm² | ASTM D638 | 508 |
| Tensile Strength @ Break | 50 mm/min | kgf/cm² | ASTM D638 | 292 |
| Elongation @ Yield | 50 mm/min | % | ASTM D638 | 5 |
| Elongation @ Break | 50 mm/min | % | ASTM D638 | 165 |
| Flexural Strength | 1.27 mm/min | kgf/cm² | ASTM D790 | 680 |
| Flexural Strength | 1.27 mm/min (3 inch/min) | kgf/cm² | ASTM D790 | 21200 |
| Low Temperature Falling Dart Impact | — | g | ASTM D358 | 829 |
| Atmospheric Temperature Falling Dart Impact | — | g | ASTM D358 | 1803 |
| Izod Impact Strength (Notched, 23°C) | — | J/m | ASTM D256 | 102 |
3. Hardness
| Property | Unit | Standard | Value |
|---|---|---|---|
| Rockwell Hardness | R-scale | — | 117 |
4. Thermal Properties
| Property | Condition | Unit | Standard | Value |
|---|---|---|---|---|
| Heat Distortion Temperature | 0.45 MPa (66 psi) | °C | ASTM D648 | 77 |
| Melting Index | — | g/10 min | ASTM D1238-04 | 1.8 |
| Melting Point | — | °C | — | ≥196 ± 2 |
5. Electrical Properties
| Property | Unit | Standard | Value |
|---|---|---|---|
| Surface Resistivity | Ohm | ASTM D257 | 10¹⁶ |
| Volume Resistivity | Ohm·cm | ASTM D257 | 10¹⁵ |
| Dielectric Strength (500 V/sec) | kV/mm | ASTM D149 | 16 |
| Dielectric Constant (1 kHz) | — | ASTM D150 | 2.6 |
| Dielectric Constant (1 MHz) | — | ASTM D150 | 2.4 |
| Dissipation Factor (1 kHz) | — | ASTM D150 | 0.005 |
| Dissipation Factor (1 MHz) | — | ASTM D150 | 0.023 |
6. Flammability Performance
| Thickness | Standard | Rating |
|---|---|---|
| 1.00 mm | UL 94 | HB |
| 1.50 mm | UL 94 | HB |
| 3.00 mm | UL 94 | V-2 |
7. Optical Properties
| Property | Unit | Standard | Value |
|---|---|---|---|
| Haze | % | — | < 1.0 |
| Light Transmittance | % | ASTM D541 | 90 |
| Refractive Index | — | ASTM D542 | 1.56 |
Material Compatibility & Sheet Processing Use
WS-502 demonstrates strong compatibility with other copolyester systems, enabling use in multilayer sheet structures. It is commonly applied in co-extrusion processes to produce advanced sheet materials such as GAG and G-APET, which require both rigidity and transparency balance.
The material’s high impact resistance and optical clarity make it suitable for both protective structural panels and high-visibility display applications in industrial and commercial environments.
For Bottle Use
The PETG resin can be used for top-grade cosmetic bottles and pharmaceutical
bottles.
Packaging method
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