How Urethane Casting Works

Urethane casting is a process that involves pouring liquid resin into a silicone mold to make identical parts with a smooth, high-quality finish. UPTIVE utilizes both 3D printing and machining techniques to create the master pattern from which your mold is made. This mold is then filled under vacuum with liquid urethane material, which hardens to produce the finished part. The end product can be used as a prototype or for low-volume production runs.

Engineering plastics. Plastic material used in manufacturing industry.Details of the mechanism of plastic on the stand.

Here’s how our urethane casting solutions can help you:

  • Get parts to market faster with shorter lead times for low volume projects than injection molding.
  • Eliminate extensive post-processing with parts that leave the mold in a near-finished state.
  • Achieve tight tolerances and high fidelity detail with a range of materials that can be tailored to specific applications.
  • Create highly repeatable, durable parts with production-ready casting materials prior to injection molding.

Our Urethane Casting Capabilities

From strong, abrasion-resistant polyurethane casting to vacuum casting, our urethane casting capabilities offer you and your teams an effective solution for rapidly-producing parts with textures and ideal surface cosmetics quickly.

Faster Turnaround

high precision aluminium rubber and plastic automotive part manufacturing by casting and machining
Urethane casting is ideal for producing detailed, precise prototypes and parts for your low-volume production runs with minimal lead times required.

Versatile Materials

Plastic and rubber parts of automotive manufacturing by high precision mold injection in the industrial factory
Casting opens the door for more material options with a variety of properties, including fire resistance, low viscosity, flexibility, tear resistance, reduced inhibition and more.

Accurate Parts

high precision aluminum rubber and plastic automotive part manufacturing by casting and machining
Based on your tight tolerance needs, we can quickly urethane cast highly repeatable, accurate parts with low variation for prototypes and short runs.

Iterative Design

Plastic and rubber parts of automotive manufacturing by high precision mold injection in the industrial factory
The urethane casting process enables iterative design modifications, helping to improve part quality quickly before committing to injection tooling.

Functional Testing

Plastic and rubber parts of automotive manufacturing by high precision mold injection in the industrial factory
Urethane casting is well suited to consumer testing, user evaluation and concept models, because changes can be quickly made prior to a launch

Urethane Casting Materials Comparison

MaterialDescriptionIdeal forFinishesSpec Sheet
High Temp Rigid Urethane – PX 223/HTHigh-temperature resistant urethane material that can withstand temperatures up to 250°F (121°C), with good dimensional stability and low shrinkage.Engine components, electrical insulators, and other high-temperature applications that require good dimensional stability and low shrinkage.Sanding, polishing, or painting, for a smooth and attractive appearance.Spec Sheet
Polypropylene-Like Urethane – 70DUrethane material that simulates the properties of polypropylene, with good impact resistance, Stiffness, and low friction properties.Bushings, gears, and other components that require good impact Resistance, stiffness, and low friction properties.Sanding, polishing, or painting, for a smooth and Attractive appearance.Spec Sheet
Rigid Clear Urethane Plastic – TC-879Clear and rigid urethane material that is suitable for creating parts such as lenses, windows, and other optical applications.Lenses, windows, and other optical applications that require good clarity and rigidity.Polishing, buffing, or coating, to achieve a clear and glossy appearance.Spec Sheet
Rigid Flame Retardant Urethane Plastic – TC-894Flame retardant urethane material suitable for creating parts such as electrical enclosures and other applications where fire safety is a concern.Electrical enclosures, automotive components, and other applications where fire safety is a concern.Painting or powder coating, to improve their appearance and fire-retardant properties.Spec Sheet
Rigid General Purpose Urethane Plastic – TC-850Rigid urethane material that is lightweight, with good impact resistance and dimensional stability.Housings, covers, and other components that require good impact resistance and dimensional stability.Sanding, polishing, or painting, for a smooth and attractive appearance.Spec Sheet
Silicone Rubber Durometer 40A – TC-5040Soft and flexible silicone material that has good tear strength, low compression set, and excellent electrical insulation properties.Gaskets, seals, and other components that require flexibility, tear resistance, and electrical insulation properties.Sanding, polishing, or painting, for a smooth and attractive appearance.Spec Sheet
Silicone Rubber Durometer 45A – TC-5041Slightly firmer silicone material than TC-5040, with good tear strength, low compression set, and excellent electrical insulation properties.Gaskets, seals, and other components that require flexibility, tear resistance, and electrical insulation properties.Sanding, polishing, or painting, for a smooth and attractive appearance.Spec Sheet
Silicone Rubber Durometer 60A -TC-5060Firmer silicone material than TC-5041, with good tear strength, low compression set, and excellent electrical insulation properties.Gaskets, seals, and other components that require flexibility, tear resistance, and electrical insulation properties.Sanding, polishing, or painting, for a smooth and attractive appearance.This is a sampling of urethane casting materials we work with. See more information on available materials and specs here.Spec Sheet

This is a sampling of urethane casting materials we work with. See more information on available materials and specs here.

Why Customers Choose UPTIVE

  • "We received this cast urethane order and are very impressed with the quality. Great job, thanks again."
    Chris, Industrial Equipment Manufacturer
  • "Thank you guys so much! I’m not sure what you guys are doing over there or how you do it, but UPTIVE (Previously GoProto) has been a saving grace for us recently when most shops are quoting 5 week+ long lead times. Keep it up!"
    Dakota, Engineering Consulting Firm

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