MAX-G™ PCTG is an exceptionally durable material that offers improved chemical resistance, clarity, and impact resistance vs. PETG. Our PCTG is easier to print than ABS or Nylon and offers many of the advanced properties of an engineering-grade resin.

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MAX-G™ PCTG is an excellent alternative to the ever-popular PETG. Both PCTG and PETG are polyesters and great printing materials, but PCTG offers improved clarity, chemical resistance and impact resistance vs. PETG – making it a more durable engineering-grade option for demanding applications. This material exhibits low shrinkage and excellent dimensional stability making it a go-to for engineering applications. PCTG does not require a heated chamber and is easily printed on most open-source desktop printers.

Gearbox HT2™ 3D Printer: Print industrial-grade parts using our PCTG filament and more with the new Gearbox™ HT2 High-Temp 3D Printer.

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Print Recommendations

Ext Temp 1

Extruder Temp

Bed Temp

Bed Temp

Chamber Temp

Heated Chamber
Not required

Nozzle Settings

Nozzle Specs
No special concerns

Bed Adhesion

Bed Adhesion
Magigoo Bed Prep

Layer Height

Layer Height
No special concerns

Drying Filamen

Drying Specs
65°C for 4 hours

Water Soluble Support

Works best with
X1 USM Water Soluble Support

Benefits of PCTG Include:

  • Superior chemical resistance to ABS and PETG
  • Very low odor while printing
  • Amorphous structure giving it a low, near isotropic shrinkage
  • Low moisture absorption, 3x lower than ABS
  • Wide range of processing from 250-270°C
  • Superior ductility vs. PETG

Filament Specifications:

1.75mm and 2.85mm +/- 0.05mm in diameter

Recommended Print Settings:

  • Extruder: 250-270°C
  • Bed Temp: 70-80°C
  • Bed Prep: Magigoo Bed Prep Adhesive works best for us.
  • Heated Chamber: Not required
  • Supports: Water soluble AquaTek X1 USM works great for complex parts.
  • Drying Instructions: 65°C for 4 hours.

Frequently Asked Questions about MAX-G PCTG

  1. What is MAX-G PCTG?

    MAX-G PCTG is a high-performance, transparent thermoplastic copolyester. It offers excellent clarity, impact resistance, and ease of processing, making it ideal for a variety of applications.

  2. What are the key properties of MAX-G PCTG?

    MAX-G PCTG boasts superior clarity, high impact strength, good chemical resistance, and easy printability. It also has a lower shrink rate, which helps in achieving precise and consistent prints.

  3. How is MAX-G PCTG used in 3D printing?

    MAX-G PCTG is used in 3D printing to produce clear, durable parts. It is suitable for creating prototypes, functional parts, and components that require good mechanical properties and transparency.

  4. What industries benefit most from MAX-G PCTG?

    Industries that benefit most from MAX-G PCTG include consumer goods, electronics, medical, and packaging. Its combination of clarity and strength makes it suitable for applications that require both aesthetic appeal and durability.

  5. Is MAX-G PCTG suitable for high-temperature applications?

    MAX-G PCTG is not typically used for high-temperature applications. It is designed for applications requiring good impact resistance and clarity at moderate temperatures.

  6. What are the chemical resistance properties of MAX-G PCTG?

    MAX-G PCTG exhibits good chemical resistance to a variety of substances, including oils, greases, and most household chemicals. However, it is advisable to test the material for specific chemical exposures relevant to your application.

  7. What are the available forms of MAX-G PCTG for 3D printing?

    MAX-G PCTG is available in filament form for 3D printing. This form allows for easy use with most FDM (Fused Deposition Modeling) 3D printers.

  8. How do I optimize my 3D printer settings for MAX-G PCTG?

    To optimize your 3D printer settings for MAX-G PCTG, use an extrusion temperature of 240-260°C (464-500°F) and a bed temperature of 70-85°C (158-185°F). Good bed adhesion can be achieved using a heated bed with a suitable adhesive like a glue stick or blue painter’s tape.


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