Hot Cast Prepolymers

Hot Cast Prepolymers collage

Hot Cast Preploymers​

Hot Cast urethane prepolymers are used in the most rigorous applications where the highest performance is required. Processing of these polyurethane elastomers generally involves heated components and tooling along with a hot post-cure to optimize properties. In most cases, low to medium cost mixing equipment and tooling are adequate. Our Hot Cast polyurethanes are used extensively in mining, industrial tires, and metal manufacturing markets.


  • Oil & Gas
  • Mining
  • Industrial Tires & Wheels
  • Recreational & Amusement Wheels
  • Belting
  • Timber & Forestry
  • Pulp & Paper
  • Printing & Coating
  • Marine
  • Steel & Metal Manufacturing
  • Transportation
  • Agriculture
  • Electronics
  • Food Contact

Available Chemistries

  • Isocyanates: MDI, TDI, H12MDI
  • Polyols: Ester, PTMEG, PPG, Caprolactone, Polycarbonate and other specialty backbones
  • Curatives: HQEE, 1,4 Butanediol, Polyols and custom blends

Processing – By Hand or Machine

  • Open pour
  • Compression molding
  • Bottom-fill/liquid injection
  • Spin-casting
  • Rotational casting
  • Spray

Attainable Properties

  • Superior abrasion resistance
  • High resilience
  • High load bearing capability
  • Cut, tear and fatigue resistance
  • Custom formulations
  • Hardness available from 20 Shore A  to 85 Shore D
  • Chemical resistance
  • Hydrolysis resistance
Reference Materials
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