Description
PET-G stands for Polyethylene Terephthalate Glycol and is a modified PET plastic known for its exceptional formability and transparency during thermoforming. Due to these properties, PET-G is often used for visible components and high-gloss blister packaging. However, its lack of UV resistance prevents its use in outdoor applications.
Processing and Thermoformability
The "G" in PET-G stands for glycol, which is added during polymerization to prevent crystallization under heat. This ensures that when PET-G film is heated in a thermoforming machine, it remains crystal clear even at high forming temperatures. This makes PET-G a plastic with maximum transparency, ideal for visible parts. Compared to PET-A, PET-G has better low-temperature performance. Glycol also enhances its thermoforming properties, making PET-G a preferred choice when ABS is insufficient. It enables highly detailed contours and sharp edges in thermoformed parts.
Material Options
Printable
Sealability
Sterilizable
WeldableFacts
Price
Colors
Features
- Maximum transparency
- Good stretchability
- Very sharp contours possible
- Resistant to: oils, salts, acids
- More cost-effective than ABS, PC, PMMA for visible parts
Weaknesses
- No UV resistance
- Very low impact strength
- Highly brittle
- High density (heavy weight)
- Fluctuating market availability
- Long procurement time
Common Industries and Applications:
Automotive
- Flange covers
- Interior paneling
- Engine covers
Electronics
- Electronic blisters
- Display protection
- Protective films for busbar mounting
Medical Technology
- Medical blister inserts
- Blister trays
- Slide blisters
Consumer Goods
- Protective covers
Mechanical Engineering
- Containers
- Plastic housings
- Thermoformed sleeves
- Outer casings
Facts and Figures:
| Group | Standard Thermoplastics |
| Structure | Semi-Crystalline |
| Density | 1.27 |
| Continuous Use Temperature Min. (in °C) | -40 |
| Continuous Use Temperature Max. (in °C) | 63 |
| Max. Temp. Short-Term (°C) | 70 |
| Max. Temp. Long-Term (°C) | 65 |
| Impact Strength (KJ/m^2) | 10 |
| Abrasion Resistance | - |
| Tensile Strength (N/mm²) | 50 |
| Tensile Modulus of Elasticity (N/mm²) | 1720 |
| Elongation at Break (%) | 54 |
| Flexural Strength (N/mm²) | 70 |
| Ball Indentation Hardness (N/mm²) | 97 |
| Dielectric Strength (kV/mm) | 16 |
| Volume Resistivity (Ω · m) | >10^15 |
| Surface Resistivity (Ω) | > 10^16 |