PET - Material Guide | Craftcloud®
Material
PET
PET 3D prints offer a strong balance of toughness, chemical resistance, and dimensional stability. The material produces durable parts with good layer adhesion and a semi-gloss surface finish.
Manufacturing processes
FDM
About
PET (Polyethylene Terephthalate) is a durable thermoplastic widely used in FDM 3D printing for functional and semi-structural parts. It combines good mechanical strength with chemical resistance and low moisture absorption compared to many other common filaments. PET prints typically show strong layer bonding, reducing the risk of delamination under load.
The material offers good impact resistance and maintains dimensional stability across moderate temperature ranges. Its surface finish is usually smooth with a slight sheen, depending on print settings. PET is less brittle than PLA and generally easier to print than more advanced engineering polymers, making it a practical option for brackets, housings, mechanical fixtures, and general-purpose functional components.
Technical Details
Accuracy ±0.3% (lower limit of ±0.2 mm)
Density 1.3 g/cm³
Min. wall thickness 1 mm
Technical Properties
Tensile strength 45 - 60 MPa
Tensile modulus 2000 - 2700 MPa
Tensile elongation 5 - 15%
Flexural strength 70 - 90 MPa
Flexural modulus 2000 - 2800 MPa
Default layer height 0.2 mm
Default infill 20%
Embossing min. 0.4 mm
Engraving min. 0.4 mm
Warping risk Moderate
Maximum printing dimensions 350 × 350 × 350 mm
Finishes
- Standard
- Sanded
Properties
- Functional
- Strong
- Impact resistant
- Water resistant
Colors
Black
White
Blue
Yellow
Red
Orange
Gray
Green
Translucent