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Material guide

PCTG

Polycyclohexylene Dimethylene Terephthalate Glycol

PCTG is a glycol-modified copolyester family related to PETG. The cited Spectrum product is positioned for functional prototypes and parts needing low shrinkage and impact resistance.

Guide available
PCTG filament spool with example printed objects in a workshop

Understand the scope

Family guidance, not a universal profile

The settings and properties below apply to Spectrum Premium PCTG, not every PCTG. Exact mechanical values remain product- and test-method-specific.

Sources for this section:Spectrum Premium PCTG technical data sheet (checked 2026-09-26)

Where it is commonly considered

Applications

  • Functional and visual prototypes
  • Fit-check models and production tooling
  • Transparent parts when the chosen product/color is specified as transparent
Application sources:Spectrum Premium PCTG technical data sheet (checked 2026-09-26)

Plan around these constraints

Limitations

  • Product-specific evidence is narrower than the other core material guides
  • Do not transfer TDS test values to an unverified brand or design load
  • A printer-specific MK4 or X1C preset was not established from the cited TDS
Limitation sources:Spectrum Premium PCTG technical data sheet (checked 2026-09-26)

Before printing

Equipment and handling

  1. 01

    Use the April 2022 Spectrum TDS processing range as product guidance, not a universal profile

  2. 02

    Validate fit and surface behavior with a small print

  3. 03

    Consult the current spool label in case the product specification changed

Requirement sources:Spectrum Premium PCTG technical data sheet (checked 2026-09-26)

Documented examples

Product processing range

This range is product-specific and is not a printer-scoped workflow.

Product-only range

Spectrum Premium PCTG product range

Spectrum Premium PCTG product guidance. The source does not document a printer-specific MK4 preset, so this is a product processing range, not a ready-to-import MK4 profile.

Nozzle
250-270 °C
Bed
60-100 °C
Layer height
0.05-0.30 mm
Print speed
40-110 mm/s
  • The April 2022 TDS says a heated chamber and dry box are not necessary.
  • Choose a product profile and validate a small test before a functional part.
Workflow sources:Spectrum Premium PCTG technical data sheet (checked 2026-09-26)

Source notes

Primary documentation

Source dates show when FilamentMap last checked the linked documentation. They do not imply independent product testing.