Filament C-TECH PREMIUM LINE, TPU 90A, flexible, traffic black, RAL9017, 1.75mm, 1kg

Product detailed description

C-TECH TPU 90A - Flexible Filament For Durable And Flexible Prints

C-TECH TPU 90A is a flexible 3D printing filament based on thermoplastic polyurethane (TPU), combining excellent flexibility with strength and wear resistance. Thanks to Shore 90A hardness, this material is soft enough for bending and deformation, yet rigid enough to hold its shape and provide mechanical stability even during more demanding use.

TPU 90A is the ideal choice for printing parts that require high flexibility, impact resistance, and resistance to abrasion, oils, or common chemicals. This makes it a great material for creating functional components, such as shock absorbers, seals, covers, electronics housings, shoe soles, belts, robot bodies, and many others.

Advantages Of C-TECH TPU 90A Material
- High flexibility – up to 500% elongation at break
- Resistance to mechanical stress and wear
- Good chemical resistance – suitable for applications with risk of contact with oils, greases, or fuels
- Low shrinkage – prints hold their shape even without a heated chamber
- Excellent interlayer adhesion – resulting in strong, cohesive parts
- Odourless and easy to print – the material is also suitable for beginners

Technical Parameters
Material: Thermoplastic Polyurethane (TPU)
Hardness: Shore 90A
String diameter: 1.75 mm
Diameter Tolerance: ± 0.05 mm
Density: 1.21 g/cm³
Printing Temperature: 210–230 °C
Recommended Bed Temperature: 30–60 °C
Printing Speed: 15–30 mm/s
Glass Transition Temperature (Tg): approx. -35 °C
Tensile Strength: approx. 40 MPa
Elongation at Break: up to 500%
Abrasion Resistance: High
Chemical Resistance: Good (oils, lubricants, fuels)

Printing Recommendations
A direct extruder is ideal for printing TPU filaments – Bowden feeding can be more challenging due to the material's flexibility.

It is recommended to reduce the printing speed to ensure a stable material flow and high-quality layering.

The build plate can be slightly preheated (30–60 °C), and the use of an adhesive agent or a PEI sheet is recommended.

The material is sensitive to moisture, so it is advisable to dry it before printing (e.g. 4–6 h at 50 °C) or store it in an airtight box with desiccant.

Applications
Protective covers and cases

Seals, gaskets, shock absorbers

Flexible couplings and mechanical parts

Footwear prototypes and orthopaedic aids

Flexible models for hobbies, RC models and robotics

Thanks to its balance of flexibility, durability and ease of processing, C-TECH TPU 90A is an excellent choice for anyone looking to push the boundaries of 3D printing into the world of soft yet robust materials.