BigRep PETG
PETG is a thermoplastic based on PET (polyethylene terephthalate), which is among the most widely used plastics in the world. PET is known for its strength, chemical resistance, and easy processing, and can be found practically everywhere: it’s used for beverage bottles, food packaging, industrial films, and more. PETG, for its part, shares many properties with PET, only the addition of glycol enhances the material’s durability and printability.
Recognizable by its transparent sheen, BigRep PETG has been optimized for the company’s machines but is compatible on all open-build FFF systems. The material’s excellent strength, toughness, and temperature resistance—not to mention its excellent printability and adhesion—make it a popular alternative to classic filaments like PLA and ABS, as well as a lower cost alternative to engineering-grade materials.
PHYSICAL PROPERTIES:
| Material: | Polyethylene Terephthalate, glycol-modified |
| Density: | 1.27 g/cm³ |
| Filament Diameter: | 2.85 mm |
| Color Availability: | Transparent, Translucent Purple, Green |
| Available Spool Sizes: | 2.3, 4.0 and 8.0 kg |
MECHANICAL PROPERTIES:
| Tensile Strength (ISO 527): | 50 MPa |
| Tensile Modulus (ISO 527): | 1900 MPa |
| Elongation at Break (ISO 527): | 15% |
| Flexural Strength (ISO 178): | 70 MPa |
| Flexural Modulus (ISO 178): | 2100 MPa |
| Charpy Unnotched Impact Strength (ISO 179): | 22 kJ/m² |
| Charpy Notched Impact Strength (ISO 179): | 7.2 kJ/m² |
THERMAL PROPERTIES:
| HDT B - 0.45 MPa (ISO 75): | 70°C |
| HDT A - 1.8 MPa (ISO 75): | 63°C |
| Vicat Softening Temperature (ISO 306): | 78 °C |
| Glass Transition Temperature (Tg) (DSC): | 85°C |
| Continuous Use Temp. (UL Yellow Card) (DSC): | 50°C |
