Multipurpose Plastic · Engineering Thermoplastic
PETG
PETG is a multipurpose polymer — versatile tough plastic. Typical values: 50 MPa yield, 1.27 g/cm³, rated to 70 °C. Available for CNC machining, Sheet metal, Injection molding, 3D printing at FabDigit.
Properties
Typical room-temperature values in the Unfilled condition. Metric first, imperial in gray. The bars show where PETG sits against the other 74 polymer grades in the catalog.
Datasheet
| Yield strength | 50 MPa7 ksi |
|---|---|
| Tensile strength | 55 MPa8 ksi |
| Hardness | 105 HRR |
| Density | 1.27 g/cm³0.046 lb/in³ |
| Specific strength (yield ÷ density) | 39 |
| Min service temp | -20 °C-4 °F |
| Max service temp | 70 °C158 °F |
| Electrical conductivity | < 0.001 % IACSinsulator |
| Machinability | Excellent85 / 100 |
| Weldability | Excellent85 / 100 |
| Formability | Excellent95 / 100 |
| ISO 513 machining group | N |
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Against other polymer grades
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. PETG is highlighted; hover a dot for its name, or open the interactive family chart.
Manufacturability
The process limits FabDigit's quote engine applies to PETG. Design inside these and the part quotes instantly; outside them it routes to an engineer.
CNC machining
| Machinability | Excellent85 / 100 |
|---|---|
| ISO material group | N.8 |
| Cutting speed (rough / finish) | 400 / 500 m/min |
| Minimum wall | 0.5 mm |
| Minimum internal radius | 1 mm |
| Drill depth limit | 10× diameter |
| Best surface (machined / polished) | Ra 0.8 / — |
| Hardenable after machining | No |
Sheet metal
| Formability | Excellent95 / 100 |
|---|---|
| Weldability | Excellent85 / 100 |
Injection molding
| Mold shrinkage | — |
|---|---|
| Wall thickness | — – — |
| Recommended draft | — |
| Pre-drying | — |
3D printing
| Technologies | FDM |
|---|---|
| Layer height | 50 – 300 µmdefault 100 µm |
| Minimum wall / feature | 1 / 0.5 mm |
| Build envelope | 300 × 300 × 380 mm |
| Supports | Yes |
| Anisotropy | Moderate |
Conditions and tempers
How PETG is supplied and what each state is for. The default is what FabDigit quotes unless your drawing says otherwise.
| Condition | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
UnfilledDefault Grade Modifier | Tougher and cheaper than filled — snap fits, housings, wear parts | — | — | — | — |
ESD Grade Modifier | Bleeds static safely — electronics fixtures, chip trays | — | — | — | — |
Heat treatment and post-processing
Operations FabDigit's suppliers routinely run on PETG, ranked by how often they make sense for this grade.
Post-processing
| Manual Deburr | Deburrstandard |
|---|---|
| Edge Break (0.5mm) | Deburr |
| Heat-Stake Insert | Assembly |
| Ultrasonic Insert | Assembly |
| Laser Engrave | Marking |
| Press-fit Insert | Assembly |
| Silk Screen | Marking |
| CMM Inspection | Inspection |
| FAI Report | Inspection |
| Individual Bag | Packaging |
Surface finishes for PETG
Coatings and treatments compatible with polymer on the processes PETG runs on. Pick them in the quote configurator or call them out on the drawing.
Coating
- Clear Coating
- Conductive Coating
- EMI Shielding Coating
- Primer Coating
- Soft Touch Coating
- Tinted Coating
- UV Coating
- Waterproof Coating
Injection Molding Coating
- EMI Shielding Coating
- Soft Touch Coating
- Spray Painting
- UV Coating
Organic Coating
- Painting
Marking / Decoration
- Chemical Etching
- Dot Peen Marking
- Electro-chemical Etching
- Embossing / Debossing
- Hot Stamping
- In-Mold Labeling (IML)
- Ink Stamping
- Laser Marking
- Mechanical Engraving
- Pad Printing
- Vibro Engraving / Scribing
Metallization / Functional
- Chrome Plating (Plastic)
- Vacuum Metallization
Coloring
- Dyeing (Nylon)
- Painting
Stock forms
Raw-material forms FabDigit sources PETG in.
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.