Urethane Casting Materials

When it comes to producing high-quality, detailed prototypes and end-use parts, urethane casting stands out as a versatile and cost-effective manufacturing method. This process is ideal for low to medium volume production runs, offering exceptional surface finish and the ability to replicate complex geometries. The success of this technique hinges on the materials used, particularly the specialized resins and equipment. For optimal results, selecting the right Urethane Casting Resin is paramount, as its properties directly influence the final part's strength, flexibility, and clarity. The entire Urethane Casting Process involves creating a silicone mold from a master pattern and then pouring the liquid resin into it. To ensure consistency and efficiency, many manufacturers utilize an advanced Urethane Casting Machine, which automates mixing and dispensing to minimize air bubbles and waste. For applications requiring transparent or translucent parts, such as lenses or light pipes, a Clear Urethane Casting Resin is the go-to material, providing optical clarity alongside durability.


Our flagship product, the UltraCast Pro Series Urethane, has been engineered to meet the rigorous demands of modern manufacturing. This material system offers a superior combination of mechanical performance and ease of use. Below is a detailed breakdown of the critical specifications for the UltraCast Pro Series Urethane. This data is essential for engineers and designers to make informed material selections for their specific projects.

Key Material Properties

  • High Impact Resistance: Withstands significant physical shock without cracking.
  • Excellent Abrasion and Tear Strength: Ideal for parts subject to wear and friction.
  • Superb Dimensional Stability: Maintains its shape and size under various environmental conditions.
  • Resistance to Oils, Greases, and Many Chemicals: Ensures longevity in harsh operational environments.
  • Wide Range of Available Hardness: From very soft, flexible elastomers to rigid, hard plastics.

Technical Specifications

Property Test Method Value/Result
Mixed Viscosity ASTM D2393 450 cps
Pot Life ASTM D2471 10 minutes
Demold Time - 16-24 hours
Shore Hardness ASTM D2240 70A - 85D
Tensile Strength ASTM D412 > 4000 psi
Elongation at Break ASTM D412 > 250%
Tear Strength (Die C) ASTM D624 > 400 pli
Heat Deflection Temperature (HDT) ASTM D648 70°C @ 66 psi

Color and Processing Options

  • Standard Colors: Clear, White, Black.
  • Custom Colors: Available upon request with precise color matching services.
  • Mix Ratio: 1A:1B by weight or volume.
  • Cure Schedule: Room temperature cure; post-cure options available for enhanced properties.

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