Hot Cast Prepolymers

Hot Cast Prepolymers

Typical Applications Include:

  • 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

Hot cast urethane prepolymers are used in the most rigorous applications where the highest performance is required. Processing of these materials 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.

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
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As more US suppliers merge or are acquired, more companies’ owners are removed from the most important part of the business – the customer. At Chemline our founder and owner still runs our business. This combined with innovation and commitment to excellence, allow us to be one of the fastest growing, privately held manufactures of Polyurethane, Polyurea, and Cast Resin technologies in North America.