PETG
PETG — Tough & Clear.
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Polyethylene Terephthalate Glycol combines the printability of PLA with genuine engineering toughness. 62°C HDT, excellent layer adhesion, chemical resistance, and a smooth matte finish make it the ideal step-up from PLA for durable parts.
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About PETG
PETG (Polyethylene Terephthalate Glycol) bridges the gap between PLA and engineering materials. It is tougher than PLA, more chemical-resistant, and prints without the warping tendency of ABS — making it the go-to upgrade for durable functional parts.
We use Bambu PETG HF — a high-flow formulation designed for speeds up to 300 mm/s with reduced oozing and consistent surface quality. The matte finish eliminates uneven gloss variations common with standard PETG at varying speeds.
With 1.28 g/cm³ density, a 62°C HDT, and resistance to many chemicals, PETG is suitable for food-contact adjacent parts, medical device housings, and any application needing toughness without complex post-processing.
Material Properties
| Property | XY In-Plane | Z Through-Layer | Standard |
|---|---|---|---|
| Tensile Strength | 34 ± 4 MPa | 23 ± 4 MPa | ISO 527 |
| Young's Modulus | 1810 ± 190 MPa | 1540 ± 130 MPa | ISO 527 |
| Breaking Elongation | 8.6 ± 1.2 % | 5.1 ± 0.8 % | ISO 527 |
| Bending Strength | 64 ± 3 MPa | 48 ± 4 MPa | ISO 178 |
| Bending Modulus | 2050 ± 120 MPa | 1810 ± 140 MPa | ISO 178 |
| Impact Strength — Unnotched | 31.5 ± 2.2 kJ/m² | 10.6 ± 1.2 kJ/m² | ISO 179 |
| Impact Strength — Notched | 6.2 ± 1.8 kJ/m² | — | ISO 179 |
XY = in-plane (along print layers) · Z = through-layer (perpendicular to build direction) · Values are typical; actual results depend on layer height, infill, and geometry.
| Property | Value | Test Method |
|---|---|---|
| Density | 1.28 g/cm³ | ISO 1183 |
| Melting Temperature | 214 °C | DSC, 10 °C/min |
| Glass Transition Temperature | 66 °C | DSC, 10 °C/min |
| Vicat Softening Temperature | 70 °C | ISO 306 |
| Heat Deflection Temp (1.8 MPa) | 62 °C | ISO 75 |
| Heat Deflection Temp (0.45 MPa) | 69 °C | ISO 75 |
| Max Continuous Service Temp. | ~60 °C | — |
| Print Temperature | 230–260 °C | — |
| Bed Temperature | 65–75 °C | — |
| Max Print Speed | < 300 mm/s | — |
| Water Absorption Rate | 0.40% | 25 °C, 55% RH |
| Property | Value |
|---|---|
| Composition | Polyethylene Terephthalate Glycol (PETG) |
| Origin | Petroleum-based |
| Odour During Printing | Odourless |
| Skin Hazard | None |
| Chemical Stability | Good resistance to many common chemicals |
| Solubility in Water | Insoluble |
| Acid Resistance | Moderate |
| Alkali Resistance | Not resistant |
| Oil & Grease Resistance | Resistant to most oils |
| UV Resistance | Moderate — suitable for indirect outdoor use |
Performance Ratings
Available Colours
✦ 7 stock colours available. All colours are confirmed stock. Contact us for custom colour requirements on bulk orders.
Design Guidelines for PETG
For fine-detail display parts, PLA gives a better surface finish. ABS or Hyper ABS offers higher heat resistance. For flexible or rubber-like parts, TPU 95A is available. For maximum structural strength and heat, PC or PA6-CF are available through our service.