PET-G

At a Glance

Process

Lead Time

Colors

Resolution

Price

Applications

As fast as 2 days
Black, white, neutral
0.2 mm
$$
Mechanical early-stage prototypes

About the Material

PET-G (Polyethylene terephthalate glycol) is a useful 3D printing material for mechanical early-stage prototypes. It’s a great option that merges the cost-effectiveness of PLA and functionality of ABS. Although not ideal for aesthetics, this material is known for its impact resistance, warpage resistance, low shrinkage rate and high head deflection temperature. Printers typically run at a slower speed for this material, so it does have improved tolerance capabilities considering it’s a hobbyist-level material.

Material Properties

Tensile Strength

Elongation at Break

Modulus of Elasticity

Flexural Strength

45.8 MPa
18%
2100 MPa (304579 PSI)
77 MPa (11167 PSI)

Material Finish

PET-G prints with a relatively smooth surface, but is not the most ideal for aesthetics. 

Support is typically more difficult to remove from PET-G parts than PLA parts, so scarring is very common. This material also has a tendency to ooze and clump around a printer nozzle. As a result, stray hairs and very small blobs may also appear along a surface, typically at the beginning or end of the layer path.

Design Recommendations

Max Part Size [x, y, z]

Min Clearance + Gaps for Fit

Min Wall Thickness

304 x 304 x 304 mm
0.5 mm
1 mm

- This material has poor bridging abilities, so we recommend avoiding large gaps between areas that don't require support
- PET-G is generally better for simple geometries

Related Resources

Fictiv 3D Printing Material Datasheet