SMARTFIL PETG TRUE BLACK 1,75mm 750g

SMARTFIL PETG FILAMENT SPOOL FEATURES:

• 3D printer filament type: PETG
• Technical name: Polyethylene Terephthalate Glycol
• Color:
  • Black: True Black
  • White: Ivory White
  • Yellow
  • Red
  • Blue
  • Green
• Diameter: 1.75mm
• Physical properties:
  • Material density: 1.27 g/cm³
• Mechanical properties:
  • Tensile strength: 32.3 (XY plane) - 23.7 (ZX plane) MPa (ISO 527)
  • Tensile modulus: 1186.9 (XY plane) - 1261.7 (ZX plane) MPa (ISO 527)
  • Flexural strength: 51.1 (XY plane) - 47 (ZX plane) MPa (ISO 178)
  • Flexural modulus: 1422.5 (XY plane) - 1460.2 (ZX plane) MPa (ISO 178)
  • Elongation at max stress: 2.4% (XY plane) - 1.8% (ZX plane) (ISO 527)
  • Hardness: 76.2 Shore D (ISO 7619-1)
• Printing parameters (manufacturer's recommendation):
  • Printing temperature: 225 - 250 ºC
  • Heated bed temperature: 70 - 90 ºC
  • Material flow: 95%
  • Layer height: ≥ 0.1 mm
  • Nozzle recommendation: ≥ 0.2 mm
  • Print speed: 30 - 50 mm/s
  • Fan: ON (100)
• Properties:
  • High printing resolution
  • High chemical and thermal resistance
  • High tensile strength
  • High flexural strength
  • High impact resistance
  • High UV resistance
  • Can produce translucent parts
    
• Weight: 750 grams or 1 kilogram (larger sizes available: 3.3 / 5 / 8 kg with discount, contact us)
• Gross weight: 975 grams
• Brand: Smartfil
• Manufacturer: Smart Materials 3D
• Origin: Spain

USES AND APPLICATIONS OF PETG FILAMENT FOR 3D PRINTERS:

What is PETG filament?

PETG filament is a material made from PET through a glycol-modified process. PET is one of the most common materials found in our daily lives—in food containers, trays, textiles, dental aligners (like Invisalign or Smile), etc. PET (polyethylene terephthalate) is a clear, lightweight thermoplastic polymer resin and a member of the polyester family derived from petroleum.

For 3D printing, this polymer is modified with glycol (G) at the molecular level, resulting in a filament that is stronger, more durable, and more flexible. Flexibility prevents it from cracking during printing, which would happen with standard PET.

What can PETG filament be used for?

PETG filament typically offers a translucent finish depending on your print settings. This, combined with resistance to moisture and chemicals, makes it ideal for engineers or designers needing to create liquid containers or measuring devices. Being a durable, high-performance filament, it’s suitable for functional parts like hinges, brackets, or tools.

Advantages of using PETG filament:

• Food-safe and non-toxic.
• More durable and impact-resistant than PLA filament.
• Less prone to surface damage.
• Good layer adhesion.
• Chemical resistance to acidic or alkaline compounds.
• Great for large prints.
• Warp-resistant.
• Moisture-resistant.
• Glossy finish.
• Higher density.

Disadvantages of using PETG filament:

• Poor adhesion to the print bed. It tends to warp as it cools.
• Recyclable but not biodegradable.
• Requires cooling fan.
• Can produce stringing during printing.

How to print with PETG filament?

3D Printer Settings: PETG

Always check the manufacturer's parameters and ensure your printer can reach the required higher temperatures—many printers designed for PLA cannot.

While PLA prints around 210°C, PETG usually needs 230–260°C, depending on the brand.

Ensure the nozzle reaches the recommended temperature before starting the print.

PETG also requires a heated bed, typically between 70–90°C. You may need adhesive or hairspray to help the print stick to the bed.

Is PLA or PETG better for 3D printing? What’s the difference?

Although PETG is recyclable, unlike PLA, it is not biodegradable as it’s not made from raw natural materials.

PETG offers better mechanical properties, and higher resistance to moisture, chemicals, and heat compared to PLA.

Both are easy to print and don't require an enclosed printer, but PLA melts at a lower temperature.

PETG combines the best of ABS and PLA. It has similar heat resistance to ABS but is more flexible and durable, and unlike ABS, PETG is odorless.

How to post-process a PETG 3D print?

PETG doesn’t have many post-processing options. However, its translucent finish is highly valuable in industrial uses. PETG can be sanded to smooth its surface. It's usually easier to sand than PLA, although PLA allows more post-processing options like resin coating or painting.

How to prevent PETG clogs in your 3D printer? - Maintenance tips:

Understand how PETG behaves. It struggles to stick to the bed, so before printing:

• Ensure the bed is properly heated to the specified temperature (usually 60–90°C).
• Ensure the bed is properly leveled.
• Set the correct nozzle height (about 0.1 mm from the bed, you can use a thin cardboard sheet).

PETG adheres well between layers, so if there’s an error, it can also stick to the nozzle, potentially causing clogs.

If you’ve changed the bed surface, make sure to relevel it.

GENERAL 3D PRINTER MAINTENANCE:

Use cleaning filament and clean the nozzle externally with a brass brush as part of routine maintenance.

How to remove a PETG clog in your 3D printer?

Start with cleaning filament. If the clog persists, heat the nozzle and try pushing a needle through it.

If that doesn’t work, consider replacing the nozzle.

If you want to know more about PETG filament, click here.