IROGRAN® A 95 K 4640

Polycaprolactone-based Thermoplastic Polyurethane

Product Description:
IROGRAN® A 95 K 4640 is a polycaprolactone-based Thermoplastic Polyurethane (TPU) for injection molding applications. Key features are good oil and solvent resistance, low compression set, excellent wear performance, resistance to dynamic stress and short cycle times.
MAIN APPLICATIONS:
Thick wall technical parts and seals and gaskets.

Details

At Jan.2016: US / EAIME / APAC - / MTO / MTO finished 08.10.2016
Properties Key NORM Value Unit
Hardness (after 3 sec.) M ISO 7619 95 Shore A
Hardness (after 3 sec.) M ISO 7619 45 Shore D
Density M ISO 1183-1 1,19 g/cm³
Tensile strength M DIN 53504 53 MPa
Elongation @ break M DIN 53504 530 %
Tensile stress @ 20% elongation M DIN 53504 8,9 MPa
Tensile stress @ 50% elongation M DIN 53504 11,4 MPa
Tensile stress @ 100% elongation M DIN 53504 13,7 MPa
Tensile stress @ 300% elongation M DIN 53504 22,5 MPa
Tear strength M ISO 34-1 90 N/mm
Abrasion M ISO 4649 30 mm³
Bayshore rebound resilience M ASTM D 2632 38 %
Compression set at 70h @ 23°C M ISO 815 19 %
Compression set at 24h @ 70°C M ISO 815 23 %
Compression set at 24h @ 100°C M ISO 815 25 %
Compression set at 70h @ 100°C M ISO 815 28 %
Mold shrinkage M ISO 294-4 1,4 %
Softening range low E Huntsman TMA 220 °C
Softening range high E Huntsman TMA 225 °C
Vicat softening point VST/A120 M ISO 306 165 °C
  • M = Injection molded parts to meet DIN & ASTM requirements. Parts tempered for 20 hrs @ 120 °C prior to testing

  • E = Extruded film cut to ASTM requirements. Parts at room temperature aged prior to testing.

Processing Parameters

Melt Volume Rate [210°C / 21,6kg] ISO 1133-1  =  40 cm³/10min

Processing Parameter:   Injection Molding
Temperature Profile °C
Feed Zone: 25 - 40
Barrel: 205 - 215
Nozzle: 210 - 220
Mold: 20 - 50


 








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