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Flexible High Impact Cast Urethane (Shore 30 D)

Flexible High Impact Cast Urethane (Shore 30 D)

Checkerspot® Cast PU 1069

Regular price $1,991.00 USD
Regular price Sale price $1,991.00 USD
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Checkerspot Cast PU 1069 matches the impact strength of ABS, including in cold temperatures. Potential applications include sidewalls in skis and snowboards, and other applications that require a flexible material.

This two-component polyurethane casting system is formulated with 71% biobased content (ASTM D6866). It gels in 55 minutes and can be removed from the mold in 24 hours. For accelerated curing, post-bake at 80C (176F) for 30 minutes. Pigmented material (with dispersion loading at 2% by total weight) transitions from flexible (Shore 30 D) in room temperature to semi-rigid (Shore 50+ D) in freezing temperatures.


Checkerspot’s Pollinator® Series Flexible Casting Resin is a two-component polyurethane casting system formulated with 70% biobased content (ASTM D6866). This polyurethane gels in 20 minutes and can be removed from the mold in 3 hours. For accelerated curing, post-bake at 80C for 30 minutes. The unpigmented material cures to a Shore hardness of 35 D.

Pollinator resins are strong with excellent machinability. The unpigmented material is a beeswax yellow when cured and can be colored with most common urethane tints. Our materials do not contain added mercury, tin, MOCA, or TDI, making them virtually odorless. There are no fillers in the resin, and it can be hand mixed or used with metered dispensing equipment. Pollinator biobased resins can be used with the same tooling, molds, and processes employed when working with fossil fuel-derived polyurethane formulations. This resin is ideal for casting prototypes, models, figurines, proofing molds, and reproductions that demand fine detail and high quality surface finishes. It is perfect for industrial designers, engineers, model makers, hobbyists, crafters, and all types of creators looking to use renewable materials.

If you require customized material properties, such as a quick cure, please contact us directly.


  • Ships from Salt Lake City, UT
  • International shipping available to EU, UK, and Canada.

Technical Data

  • Bio Content: 71%
  • Shore Hardness: 30 D
  • Gel Time (@ 72F): 55 mins
  • Demold Time (@72F): 24 hrs
  • Mix ratio (unpigmented, by weight): 41.3/100 pbw
  • Mix ratio (unpigmented, by volume): 34.3/100 pbv
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Incorporate bio-materials into your designs

  • High Performance

    We test our cast urethane formulations under demanding conditions in skis and snowboards.

  • Certified Biobased

    With the Pollinator polyurethane system, make items with 50%+ biobased content (ASTM D6866).

  • Compatible

    Use this two-part casting system with the same tooling, molding materials, and processes you normally use for fossil fuel-based cast polyurethanes.

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