PETG
PET-Glycol
Functional parts · Higher heat
Tough, dimensionally stable, and warp-resistant. The step up from PLA Pro when functional parts need to handle more heat.
FDMPETGBlackBicycle Helmet
SECTION · 01
Strengths
& uses
For enclosures, fixtures, and containers that have to survive daily handling — short of what calls for an engineering plastic.
Strengths
- Higher heat tolerance than PLA or PLA Pro
- Impact-tough without becoming brittle
- Dimensionally stable — resists warp even on large parts
- Resistant to solvents and moisture — not to acids or alkalis
Common applications
- Fluid containers
- Functional enclosures
- Production fixtures
- Mechanical brackets
SECTION · 02
Compare with
other FDM
materials
PETG measured against the FDM core lineup.
SECTION · 03
Technical
Specifications
Manufacturer datasheet values. Real-world performance will vary — see disclaimer.
Mechanical
Properties
Properties
(XY) Tensile Modulus
1472 ± 270 MPa
ISO 527, GB/T 1040
(XY) Tensile Strength
31.9 ± 1.1 MPa
ISO 527, GB/T 1040
(XY) Elongation at Break
6.8 ± 0.9 %
ISO 527, GB/T 1040
(XY) Bending Modulus
1174 ± 64 MPa
ISO 178, GB/T 9341
(XY) Bending Strength
53.7 ± 2.4 MPa
ISO 178, GB/T 9341
(XY) Charpy Impact Strength
5.1 ± 0.3 kJ/m²
ISO 179, GB/T 1043
Thermal
Properties
Properties
Glass Transition Temperature
81 °C
DSC 10°C/min
Vicat Softening Temperature
84 °C
ISO 306, GB/T 1633
Heat Deflection Temperature (1.8 MPa)
74.8 °C
ISO 75, 1.8 MPa
Heat Deflection Temperature (0.45 MPa)
78.4 °C
ISO 75, 0.45 MPa
Chemical
Resistance
Resistance
Weak Acids
Not resistant
Strong Acids
Not resistant
Weak Alkalis
Not resistant
Strong Alkalis
Not resistant
Organic Solvent
Mostly resistant
Oils and Grease
No data available
Equilibrium Water Absorption
0.54 %
* Actual part performance varies with geometry, build orientation, layer height, infill, and post-processing. For load-bearing or safety-critical applications, contact us for part-specific validation.
Source: Polymaker Polylite PETG datasheet (V5.1) ↓PETG · PET-Glycol
Get a quote
in PETG.
Drop your file in. We'll price it across every applicable material, so you can see what PETG costs compared to the alternatives.