Matte Black PETG
PETG (PolyEthylene Terephthalate plus Glycol) is a co-polyester used in 3D printing for its durability, impact resistance, and temperature resistance. PETG is the second most popular 3D printing filament behind the ubiquitous PLA. It has qualities comparable to ABS but can be printed without an enclosure or fume handling requirements. Unlike ABS, however, PETG cannot be vapor smoothed using acetone.
Coex 3D Matte Black PETG is made with Virgin resin, high-quality colorant, and an non-organic matte additive only, with no fillers. All of Coex's filament is made in our production facility located in Wisconsin, USA. Coex 3D uses industrial-grade extruders and laser measuring quality control to ensure quality, consistency, and a 1.75±0.03mm diameter specification with every spool. We provide filament that gives excellent-looking and strong prints.
Technical Printing Guide - COEX PETG
1. Material Notes
- Keep filament dry - store properly and dry before use
- If needed, dry at 65°C for 3 hours or more
- Enclosure is helpful but not mandatory
- Use Z-offset slightly higher than PLA (+0.05mm)
- Enable "Avoid crossing perimeters" to reduce stringing
- Consider using the "Wipe while retract" option
- Enable "Slow down for small perimeters."
- Print outer walls slower for better quality
- Use a minimum layer time of 30 seconds for small parts
- Enable cooling gradually after the first layer
- Consider using "Extra Prime Amount" after retraction
2. Temperature Settings
Bed Temperature: 70-90°C
- Wash the bed often for good adhesion - Use dish soap and rinse thoroughly to remove oils
- Use bed adhesion products if necessary (gluestick, WELD3D)
- Use brim for tall or large prints
- Keep the ambient temperature stable
Extruder Temperature: 230-245°C
3. Basic Parameters
| Nozzle | Layer Height | Line Width | Volumetric Speed | Temperature |
| 0.4mm | 0.2mm | 0.42mm | 14.0 mm³/s | 235°C |
| 0.6mm | 0.3mm | 0.62mm | 31.5 mm³/s | 235°C |
| 0.8mm | 0.4mm | 0.82mm | 56.0 mm³/s | 240°C |
| 1.0mm | 0.5mm | 1.02mm | 87.5 mm³/s | 245°C |
4. Speed Settings
0.4mm Nozzle (Volumetric Speed: 14.0 mm³/s)
| Line Type | Percentage | Speed |
| External Perimeter | 50% | 83.33 mm/s |
| Internal Perimeters | 75% | 125.00 mm/s |
| Infill | 100% | 166.67 mm/s |
| Top/Bottom | 60% | 100.00 mm/s |
| First Layer | 30% | 50.00 mm/s |
0.6mm Nozzle (Volumetric Speed: 31.5 mm³/s)
| Line Type | Percentage | Speed |
| External Perimeter | 50% | 84.68 mm/s |
| Internal Perimeters | 75% | 127.02 mm/s |
| Infill | 100% | 169.35 mm/s |
| Top/Bottom | 60% | 101.61 mm/s |
| First Layer | 30% | 50.81 mm/s |
0.8mm Nozzle (Volumetric Speed: 56.0 mm³/s)
| Line Type | Percentage | Speed |
| External Perimeter | 50% | 85.37 mm/s |
| Internal Perimeters | 75% | 128.05 mm/s |
| Infill | 100% | 170.73 mm/s |
| Top/Bottom | 60% | 102.44 mm/s |
| First Layer | 30% | 51.22 mm/s |
1.0mm Nozzle (Volumetric Speed: 87.5 mm³/s)
| Line Type | Percentage | Speed |
| External Perimeter | 50% | 85.78 mm/s |
| Internal Perimeters | 75% | 128.68 mm/s |
| Infill | 100% | 171.57 mm/s |
| Top/Bottom | 60% | 102.94 mm/s |
| First Layer | 30% | 51.47 mm/s |
5. Retraction Settings
IMPORTANT: Set travel speed to the maximum your machine allows (200-500mm/s). Faster movements reduce filament oozing time, minimizing stringing.
| Nozzle | Distance | Speed | Z-Hop |
| 0.4mm | 1.0-1.5mm | 40mm/s | 0.2mm |
| 0.6mm | 1.0-1.5mm | 40mm/s | 0.2mm |
| 0.8mm | 1.0-1.5mm | 40mm/s | 0.2mm |
| 1.0mm | 1.0-1.5mm | 40mm/s | 0.2mm |
6. Cooling Settings
Cooling Configuration:
Fan Speed Settings:
- First Layer: 0% (fan off)
- General Printing: 40% fan speed
- Bridges and Overhangs: 70% fan speed
- Layers < 30 seconds: 70% fan speed
Advanced Settings:
- Keep Fan Always On: YES
- Force Fan Speed for Overhangs: YES
- Minimum Layer Time: 30 seconds
- Force Fan Speed for Small Perimeters: YES
Additional Cooling Notes:
- Enable gradual fan speed increase after the first layer
- Increase fan speed for small, detailed parts
- Consider reducing fan speed for better layer adhesion if needed
- Monitor overhangs and bridge quality to adjust fan speed
7. Troubleshooting Guide
| Problem | Solution |
| Irregular extrusion |
1. Dry the filament 2. Check the extruder 3. Reduce speed |
| Poor adhesion |
1. Dry the filament 2. Use adhesive 3. Adjust the first layer |
| Stringing |
1. Dry the filament 2. Adjust retraction 3. Increase travel speed 4. Check temperature |
PLEASE NOTE: These printing parameters are initial recommendations based on our experience. They may need adjustment depending on your specific 3D printer, environmental conditions, and the geometry of the part you are printing. Use these settings as a starting point and fine-tune them according to your specific needs.
CX13 PETG Technical Data Sheet
Technical Data Sheet: CX13 PCTG SERIES 3D PRINTING FILAMENT
TDS Rev 2.0
BASE RESIN: Selenis Mimesis PCTG Copolyester
Physical Properties
| Property | Standard | Unit | Typical Value |
|---|---|---|---|
| Specific Gravity - Density | ASTM D792 | g/cc | 1.27 |
| Melt Density @200°C | ASTM D1238 | g/cm³ | N/A |
| UL Flammability Class. @1.14mm | UL 94 | N/A | N/A |
Mechanical Properties
| Property | Standard | Unit | Typical Value |
|---|---|---|---|
| Tensile Yield Strength | ASTM D638 | MPa | 50 |
| Tensile Modulus | ASTM D638 | MPa | 2175 |
| Tensile Elongation | ASTM D638 | % | 84 |
| Flexural Stress | ISO 178 | MPa | 61 |
| Notched Izod Impact | ASTM D256 | J/m | 5.2 |
| Shrinkage Rate < 1% | ASTM D955 | mm/mm | 0.2 - 0.5 |
Thermal Properties
| Property | Standard | Unit | Typical Value |
|---|---|---|---|
| Glass Transition Temperature (Tg) | DSC | °C | 80 - 85 |
| Heat Distortion Temp @ 0.45MPa | ASTM D648 | °C | 71 |
| Decomposition Temperature | ASTM 3418 | °C | N/A |
SPECIFICATIONS
| Filament Size: | 1.75mm | (in) | 2.85mm | (in) |
|---|---|---|---|---|
| MIN Diameter: | 1.72mm | 0.0677 in | 2.79mm | 0.1098 in |
| MAX Diameter: | 1.78mm | 0.0701 in | 2.91mm | 0.1146 in |
| Tolerance | +/- .03mm | +/- 0.0012 in | +/- .06mm | +/- 0.0024 in |
CERTIFICATIONS
Meets ISO 10992 and/or USP Class VI biocompatibility requirements; Food Contact Status compliant
Printed Specimen Conditions
| Printer: | Open Source FDM/FFF |
| Nozzle: | 0.4mm |
| Layer Height: | 0.25mm |
| Infill: | 100%, +/-45° |
| Extrusion Temp: | 250°C |
| Bed Temp: | 80°C |
| Specimen Orientation: | XY Flat |
| Unannealed | |
Disclaimer: The technical data contained on this data sheet is furnished without charge or obligation and accepted at the recipient's sole risk. This data should not be used to establish specifications limits or used alone as the basis of design. The data provided is not intended to substitute any testing that may be required to determine fitness for any specific use.
CX13 PETG Safety Data Sheet
Material Safety Data Sheet: CX13 PETG SERIES 3D PRINTING FILAMENT
MSDS Rev 1.0
BASE RESIN: Eastar™ Copolyester 6763
1. Identification of the substance/preparation and of the company
660 Corporate WAY
Pulaski, WI 54162
Phone: (920) 757-1055
2. Hazards identification
3. Composition / information on ingredients
3.1 Chemical characteristics:
| CAS # | Hazardous Components | Concentration |
|---|---|---|
| NA | non-hazardous component(s) | 100% |
4. First-aid measures
5. Fire-fighting measures
6. Accidental release measures
7. Handling and storage
8. Exposure controls/ personal protection
9. Physical and chemical properties
10. Stability and reactivity
11. Toxicological information
12. Ecological information
12.1 Ecological info:
Toxicity to fish: LC50 (Pimephales promelas (fathead minnow)): > 100 mg/l, Exposure time: 96 h, Remarks: (highest concentration tested)
Toxicity to daphnia and other aquatic invertebrates: LC50 (daphnid): > 100 mg/l, Exposure time: 96 h, Remarks: (highest concentration tested)
LC50 (snail): > 100 mg/l, Exposure time: 96 h, Remarks: (highest concentration tested)
LC50 (flatworm): > 100 mg/l, Exposure time: 96 h, Remarks: (highest concentration tested)
13. Disposal considerations
14. Transport information
15. Regulatory information
16. Other information
This data is based on the current state of our information and experience. This safety data sheet describes our product in terms of safety requirements. Preceding data is not applicable as a warranty of product properties. It is the responsibility of the recipient to observe the existing legal regulations for the use of this product.
Disclaimer: The safety data contained on this data sheet is furnished without charge or obligation and accepted at the recipient's sole risk. This data describes our product in terms of safety requirements. The data provided is not applicable as a warranty of product properties. It is the responsibility of the recipient to observe the existing legal regulations for the use of this product.
