Technical datasheet

Desmopan® 9665DU

Supplied byCovestro- Last Updated on Jun 3, 2026

Desmopan® 9665DU by Covestro is an unfilled, ether-based thermoplastic polyurethane (TPU) block copolymer with special UV stabilizers. It is used in ski boot shells and pneumatic hoses.
  • It exhibits very good hydrolysis and microbial resistance.
  • Desmopan® 9665DU is suitable for processing by extrusion and injection molding.
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Desmopan® 9665DU properties

Flammability properties

PropertiesValue & unitTest conditionTest method
Ignition Temperature0.0 Visible After LoginVisible After LoginVisible After Login

Mechanical properties

PropertiesValue & unitTest conditionTest method
10% Modulus0.0 Visible After LoginVisible After LoginVisible After Login
100% Modulus0.0 Visible After LoginVisible After LoginVisible After Login
300% Modulus0.0 Visible After LoginVisible After LoginVisible After Login
50% Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Compression Set0.0 Visible After LoginVisible After LoginVisible After Login
Compression Set0.0 Visible After LoginVisible After LoginVisible After Login
Compression Set0.0 Visible After LoginVisible After LoginVisible After Login
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
Flexural Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Hardness, Shore A0.0 Visible After LoginVisible After LoginVisible After Login
Hardness, Shore D0.0 Visible After LoginVisible After LoginVisible After Login
Modulus of Elasticity0.0 Visible After LoginVisible After LoginVisible After Login
Modulus of Elasticity0.0 Visible After LoginVisible After LoginVisible After Login
Modulus of Elasticity0.0 Visible After LoginVisible After LoginVisible After Login
Rebound Resilience0.0 Visible After LoginVisible After LoginVisible After Login
Tear Strength0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength, Ultimate0.0 Visible After LoginVisible After LoginVisible After Login

Other properties

PropertiesValue & unitTest conditionTest method
Abrasion0.0 Visible After LoginVisible After LoginVisible After Login
Density, Bulk0.0 Visible After LoginVisible After LoginVisible After Login
Softening Point0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Density0.0 Visible After LoginVisible After LoginVisible After Login

Desmopan® 9665DU Processing Guidelines

Extrusion Processing Guidelines

PropertiesValue & unitTest conditionTest method
Melt TemperatureVisible After LoginVisible After Login

Extrusion/Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
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Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
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