dcsimg Desmodur® Low Unreacted TDI Prepolymers for Hot Cast PU Elastome

Low viscosity, high performance

Desmodur® low unreacted TDI prepolymers for hot cast polyurethane

Desmodur® low unreacted TDI prepolymers from Covestro allow for easier and safer processing with improved dynamical properties.

Low Unreacted TDI-based prepolymers – Jean-Bernard Lassara – Charlène Maisonneuve – ginko-photo.com

Desmodur® low unreacted TDI-based systems provide high resilience and load bearing ability. The more ordered structure of Desmodur® low unreacted TDI-based prepolymers allows the formation of polyurethane cast elastomers with morphologies that provide higher performance, particularly in extreme environments.





Compared with conventional TDI prepolymers, Desmodur® low unreacted TDI prepolymers benefit from:

  • Low free TDI content
  • Low viscosity
  • Long pot life
  • Outstanding dynamical properties

From a health and safety point of view, our Desmodur® low unreacted TDI prepolymers further protect operators with free monomer content less than 0.1%. These products further reduce worker exposure, limiting health and safety issues.

The processing assets of low viscosity and long pot life allow an easy final elastomers process.

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