PPprint GmbH has launched P-TPO 835 flex, a soft polypropylene-based filament for extrusion printing. It sits at the flexible end of a range with a semi-flexible and a rigid grade, and all three can be combined in one part. The material is offered in natural, beige and black.
Key facts
New filament: P-TPO 835 flex, available in natural, beige and black
Range also includes P-Filament 721 (semi-flexible) and P-Filament carbon 411 (rigid)
All three grades are compatible and can be mixed in one part
A direct-drive extruder is preferred for the flexible grade
Context Direct-drive extruders push filament from a feeder mounted right at the hot end, which helps soft filaments avoid buckling on the way.
What properties does P-TPO 835 flex offer?
PPprint describes the filament as soft, adaptable and impact resistant. Listed traits are light weight, resistance to chemicals, good bonding between layers, recyclability, no moisture uptake and suitability for sterilisation. Its documentation also cites biological safety and skin-contact certification under DIN EN ISO 10993-5.
How does it fit into the range?
The three grades run from flexible (P-TPO 835 flex) through semi-flexible (P-Filament 721) to rigid (P-Filament carbon 411). Because they are compatible, different stiffness levels can be combined within one printed part.
What printing setup is recommended?
PPprint suggests P-surface 141 as build surface and P-support 279 for geometries that need support. A direct-drive extruder is preferred for the flexible filament.
What it means
For small and mid sized manufacturers, a single polypropylene family with graded stiffness could simplify material handling for soft-touch or sterilisable parts. The skin-contact statement relates to the material; as with any food or medical use, the finished part and its process still need their own evaluation. No mechanical data or prices were published, so a business case needs supplier test data first.
Frequently asked questions
What is P-TPO 835 flex?
It is a flexible polypropylene-based filament from PPprint for extrusion 3D printing, sold in natural, beige and black.
Can it be combined with other PPprint materials?
Yes. It is compatible with the semi-flexible P-Filament 721 and the rigid P-Filament carbon 411, so one part can mix stiffness levels.