Ultrafuse® PET
Reliable PET Filament for Functional and Everyday Applications
Ultrafuse® PET is a high-quality polyethylene terephthalate filament developed for reliable and efficient FFF printing with a strong balance of printability, toughness, and chemical resistance.
The material combines good stiffness and durability with low warping and excellent layer adhesion, making it well suited for functional prototypes, tooling, fixtures, and end-use parts. Ultrafuse® PET also offers a glossy surface finish and low odor during printing.
Designed for professional and prosumer FFF applications, Ultrafuse® PET is a versatile material for users looking for easy processing, strong layer bonding, good chemical resistance, and attractive surface quality. It is suitable for functional prototypes, jigs and fixtures, consumer products, housings, and general-purpose engineering applications.
The new spool generation of Ultrafuse® PET in the 1 kg version is fully compatible with the Bambu Lab AMS, enabling reliable automated multi-material and multi-color printing workflows.
Key Benefits
- Easy and reliable printability
- Good toughness and stiffness balance
- Excellent layer adhesion
- Low warping behavior
- Glossy and attractive surface finish
- Good chemical resistance
- Low odor during printing
- 1 kg spool fully compatible with Bambu Lab AMS
Example Applications
- Functional prototypes
- Jigs and fixtures
- General-purpose engineering parts
- Consumer products
- Protective covers and housings
- Workshop and manufacturing aids
- Educational and maker projects
Material Properties
- Good balance of stiffness and toughness
- Excellent interlayer bonding
- Low shrinkage and warping
- Glossy surface appearance
- Good chemical resistance
- Low moisture sensitivity compared to PETG
- Available in selected standard colors
Processing & Compatibility
Ultrafuse® PET is designed for FFF printing with a 230–260 °C nozzle temperature, a 70–90 °C heated bed, and recommended cooling for optimized surface quality and bridging performance. A nozzle diameter of ≥ 0.4 mm is recommended. The material is compatible with a wide range of open-material FFF systems and is especially optimized for reliable high-speed printing workflows on modern desktop platforms.
