PETG
Here are the key characteristics of PETG (Polyethylene Terephthalate Glycol), a popular 3D printing filament known for combining ease of use with strength and chemical resistance:
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🧪 Material Properties
- Durable and tough: Stronger and more impact-resistant than PLA.
- Semi-flexible: More flexible than PLA, but less than TPU.
- Chemical-resistant: Good resistance to water, acids, and some solvents.
- Amorphous: Less prone to crystallization and cracking.
🔧 Printing Characteristics
- Moderately easy to print: Easier than ABS, a bit trickier than PLA.
- Print temperature: Typically 220–250°C.
- Heated bed recommended: 70–90°C to reduce warping.
- Minimal warping: Suitable for larger parts.
- Excellent layer adhesion: Strong interlayer bonding.
- Mild stringing: Requires good retraction settings.
🧱 Mechanical Properties
- High impact resistance: Ideal for functional and mechanical parts.
- Tensile strength: Higher than PLA, but with some give.
- Good transparency: Available in translucent colors.
- Stiffer than TPU, more flexible than PLA.
🌡️ Environmental Resistance
- Better heat resistance than PLA: Glass transition temperature ~80°C.
- UV resistant: More stable outdoors than PLA.
- Moisture-resistant: Great for water-contact applications.
✅ Common Applications
- Mechanical parts
- Enclosures
- Bottles and containers
- Protective components
- Functional prototypes
- Outdoor or moderately high-heat parts
