PETG · Engineering Filament
colorFabb XT-CF20 - Filament Specification & Printing Guide
Engineering specifications for colorFabb XT-CF20, a PETG 3D printing filament with a 85°C heat deflection temperature -- covering nozzle, enclosure, and drying requirements.
- Polymer Base
- PETG
- Heat Deflection Temp
- 85°C
- Nozzle / Hotend
- Hardened Steel Required
- Enclosure
- Open Air OK
colorFabb XT-CF20
colorFabb XT-CF20 is a PETG filament rated to a 85°C heat deflection temperature. This page collects its hardware, environmental, and handling requirements in one place so you can confirm your printer is up to the job before you load the spool.
Material Overview
colorFabb XT-CF20 is an engineering-grade 3D printing filament built on a PETG polymer base. With a heat deflection temperature of 85°C, it is engineered for functional parts that must hold their shape under load and elevated service temperatures — jigs, fixtures, brackets, ducting, and end-use components that would deform in a commodity material.
Selecting colorFabb XT-CF20 is a systems decision, not just a spool decision: the polymer base dictates your hotend, your chamber, and your drying workflow. The sections below translate the manufacturer’s data into the concrete hardware and environmental requirements your printer must satisfy.
At a glance
- Polymer base: PETG
- Heat deflection temperature: 85°C
- Nozzle requirement: Hardened Steel Required
- Enclosure requirement: Open Air OK
Hardware & Environmental Requirements
The table below summarizes the hardware and environmental prerequisites for printing colorFabb XT-CF20. Always confirm final values against the manufacturer’s official technical data sheet.
| Specification | Requirement |
|---|---|
| Polymer Base | PETG |
| Heat Deflection Temperature | 85°C |
| Nozzle / Hotend | Hardened Steel Required |
| Enclosure | Open Air OK |
| Manufacturer TDS | Download Technical Data Sheet |
Nozzle & Hotend
colorFabb XT-CF20 is an abrasive, fibre-reinforced filament. The carbon or glass fillers will rapidly erode a soft nozzle, so a hardened steel hotend (or a carbide/tool-steel alternative) is mandatory. Expect noticeably higher extrusion torque as well, so confirm your extruder can sustain the flow before running long prints. CSV designation: Hardened Steel Required.
Enclosure & Chamber
colorFabb XT-CF20 prints comfortably in the open air. No enclosure is required, though keeping the printer away from strong drafts or air-conditioning vents will still improve first-layer consistency and reduce edge lifting.
Frequently Asked Questions
Can I print colorFabb XT-CF20 with a standard brass nozzle?
No. colorFabb XT-CF20 is abrasive and will destroy a brass nozzle in short order. You must use a hardened steel (or carbide) nozzle — a tool-steel upgrade protects the hotend and keeps extrusion consistent over the life of the spool.
Does colorFabb XT-CF20 require an enclosure?
colorFabb XT-CF20 prints comfortably in the open air. No enclosure is required, though keeping the printer away from strong drafts or air-conditioning vents will still improve first-layer consistency and reduce edge lifting.
Does colorFabb XT-CF20 need to be dried before printing?
PETG takes on moisture moderately. Dry at 65 °C for 4 hours if the spool has been exposed, and store it sealed. Slight dampness shows up as extra stringing and surface bubbling.