Formlabs® TPU 90A Powder


TPU 90A Powder

Biocompatible SLS Powder for Flexible Parts

TPU 90A powder has an exceptional strength and flexibility to produce fully functional and durable SLS 3D printed parts in-house. Its high elongation and superior tear strength allow you to produce a myriad of functional prototypes, end-use parts and even medical devices or prosthetics that withstand the demands of daily usage. Formlabs' TPU 90A is a biocompatible 3D printing material.

Freedom of Design with TPU 90A Powder

TPU 90A Powder has a Shore hardness rating of 90A, placing it in the medium-soft material category between pencil erasers and tire treads. Nonetheless, SLS 3D printing provides design freedom that permits users to modify part designs by adding full or hollowed sections or lattices of varying density. This ability to modify the design allows for control over the durometer of the final product, allowing for the creation of harder and softer parts.

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Image shows 3D-printed parts with Formlabs TPU 90A

Material Performance*


Proto3000_Icons_Tear StrengthTEAR STRENGTH (X/Y)
66 kN/M

Proto3000_Icons_Elongation at BreakELONGATION AT BREAK (X/Y)

Proto3000_Icon_Metal PowderPOWDER REFRESH RATE

Proto3000_Icons_ElasticitySHORE HARDNESS

*Material properties may vary based on part design and manufacturing practices. It is the manufacturer’s responsibility to validate the suitability of the printed parts for the intended use.

High-Performance SLS Powders by Formlabs 

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FDM TPU vs. SLS TPU 3D Printing

TPU can be 3D printed on either FDM or SLS 3D printers. Each technology has unique advantages. Yet, it is important to determine what is best for your own workflow and business needs before choosing a technology.


FDM TPU 3D Printing SLS TPU 3D Printing
Functional Material Strength ★ ★ ☆ ☆ ☆ ★ ★ ★ ★ ★
Resolution ★ ★ ☆ ☆ ☆ ★ ★ ★ ★ ☆
Accuracy ★ ★ ★ ★ ☆ ★ ★ ★ ★ ★
Surface Finish ★ ★ ☆ ☆ ☆ ★ ★ ★ ★ ☆
Throughput ★ ★ ☆ ☆ ☆ ★ ★ ★ ★ ★
Complex Designs ★ ★ ☆ ☆ ☆ ★ ★ ★ ★ ★
Ease of Use ★ ★ ★ ★ ★ ★ ★ ★ ★ ☆
Pros Low-cost consumer machines and materials
Fast and easy for simple, small parts
Functional, strong, isotropic parts
Production-level throughput
Self-supported designs
Excellent design freedom
Cons Parts are anisotropic and not watertight or functionally strong
Limited design freedom
Slightly rough surface finish
Applications Low-cost rapid prototyping
Basic proof-of-concept models
Functional prototyping
Low volume production of end-use parts: automotive gaskets, seals, manifolds, consumer goods, shoes, prosthetics and orthotics

Types of Applications

You can produce works-like prototypes or robust end-use parts in-house with TPU 90A, a tough elastomer validated for skin contact.

  • Wearables and soft-touch elements
  • Gaskets, seals, masks, belts, tubing
  • Soles, splints, orthotics, prosthetics
  • Padding, dampers, cushions

Image shows a person testing the flexibility of a 3D-printed part with Formlabs TPU 90A SLS powder

We’re quite the experts in 3D printing
Orthotics & Prosthetics parts.