Urethane casting prototyping service

Create precision, high quality cast urethane prototypes in a variety of sizes, colors, and materials.

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Rapid urethane casting prototyping

Urethane casting is a versatile and cost-effective manufacturing process. Cast urethane molds may be prepped in a matter of weeks, allowing manufacturers to create precision prototypes and move projects forward as quickly as possible. Urethane casting is also useful for bridge tooling, expediting the transition from prototyping to full production.

Manufacturing cast urethane prototypes with Fast Radius is easy: upload your CAD file to our Cloud Manufacturing Platform™ work with our engineers to make any necessary adjustments, and then greenlight production for delivery on-demand.

To learn more about our manufacturing capabilities, explore our urethane casting service.

Urethane casting materials

Optimize your urethane casting prototypes with the following design considerations, production materials, and finishing and post-processing options.

Urethane casting general process information
Maximum part size914.4 x 914.4 x 1828.8 mm
36.0 x 36.0 x 72.0 in
Note: Ability to break parts up into multiple segments to create an even larger assembly
Minimum feature size0.635 mm for features
0.025 in for features
1.016 mm wall thickness
0.040 in wall thickness
Best achievable tolerance0.005 in (0.127 mm) for first inch, followed by 0.003 in (0.0762 mm) per lineal inch cumulatively
Lead timeAs low as 7 days for first articles (FA)
After FA approval, as low as 2 weeks for remaining parts
Shore D materials
StandardHigh performanceFDAClear
ABS-like (80D)Nylon-Delrin like (84D)ABS-like (80A)Optical Clear (80D, water clear)
PE-like (65D)ABS-High Impact (78D)ABS-High Strength (85A)PC-like (84D, haze/pale yellow)
PC-like (84D)High Impact FR (UL-94V0) (85D)Hi Impact Class VI (85D)
PP-like (70D)Hi Temp (84D)
12 Sec burn (78D)
Shore A materials
ElastomersClear ElastomersSiliconesMedical silicones
Standard elastomers (15A-94A)Clear elastomer (45A, water clear)15A38A
High performance elastomers (15A-90A)Clear elastomer (65A, water clear)25A
Clear elastomer (70A, water clear)35A
Clear elastomer (90A, water clear)40A
Urethane casting finishing and post-processing options
Part finishes
Glossy / Polish
Custom finishing available

Get a quote for your urethane casting prototyping project

Create a Fast Radius account for rapid quotes on prototype parts.

Why prototype with urethane casting?

The urethane casting process offers unique prototyping benefits:

Factory with boxes

Turnaround times

The speed of the urethane casting process means that you can create prototypes quickly, with lead times as low as 7 days for first articles, and 2 weeks for remaining parts.

Virtual iteration

Iterate your urethane casting prototypes virtually on our Cloud Manufacturing Platform™ and work with Fast Radius engineers to optimize your design.

Cast Urethane Materials Listing


Design cast urethane prototype parts with complex geometries and detail. Finish your prototypes with a range of surface textures to suit their end-use and functionality.

Ease of alteration

The versatility of the urethane casting process means that you can implement alterations to prototype parts quickly, with minimal tooling and labor requirements relative to the injection molding process..

Urethane casting applications

Consumer testing

Cast urethane prototypes are used widely for consumer testing purposes, enabling manufacturers to explore varieties of size, strength, material, and color quickly and cost-effectively.

Bridge tooling

The flexibility of the urethane casting process makes it useful for bridge tooling between the prototyping and production stages of the manufacturing process.

Joints casting

Urethane casting is ideal for creating prototypes of strong, durable mechanical joints with overlapping features.


The precision and consistency of urethane casting makes it particularly effective in the production of prototypes for 3D logos and letters.

Fast Radius manufacturing solutions

Fast Radius manufacturing solutions serve the needs of businesses across the industrial landscape. Explore our capabilities:

3D printing

Fast, scalable, and cost-effective 3D printing technology for a variety of industrial applications.

CNC machining

Automated CNC turning and 3-axis and 5-axis milling, using rotating drills, end mills, and lathes.

Injection molding

Cost-effective plastic injection molding for precision, high-volume production runs.

Urethane casting

Versatile mold-casting for the production of urethane parts customizable with colors and textures.