IROGRAN® A 85 P 4441

Polyether-based Thermoplastic Polyurethane

Product Description:
IROGRAN® A 85 P 4441 is a polyether-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are excellent hydrolysis and microbial resistance, excellent wear performance, robust processing and matte surface.
MAIN APPLICATIONS:
Thick wall technical parts, thin wall extrusion profiles, thick wall extrusion profiles, cable jacketing and film and sheet.

Details

At Jan.2016: US / EAIME / APAC MTS / MTS / MTS finished 08.10.2016
Properties Key NORM Value Unit
Hardness (after 3 sec.) M ISO 7619 87 Shore A
Hardness (after 3 sec.) M ISO 7619 38 Shore D
Density M ISO 1183-1 1,11 g/cm³
Tensile strength M DIN 53504 40 MPa
Elongation @ break M DIN 53504 650 %
Tensile stress @ 100% elongation M DIN 53504 7,3 MPa
Tensile stress @ 300% elongation M DIN 53504 11,0 MPa
Tear strength M ISO 34-1 60 N/mm
Abrasion M ISO 4649 35 mm³
Bayshore rebound resilience M ASTM D 2632 38 %
Compression set at 70h @ 23°C M ISO 815 24 %
Compression set at 24h @ 70°C M ISO 815 42 %
Mold shrinkage M ISO 294-4 0,8 %
Softening range low E Huntsman TMA 155 °C
Softening range high E Huntsman TMA 175 °C
  • M = Injection molded parts to meet DIN & ASTM requirements. Parts tempered for 20 hrs @ 100 °C prior to testing

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

Processing Parameters

Melt Volume Rate [190°C / 21,6kg] ISO 1133-1  =  65 cm³/10min

Processing Parameter:   Extrusion
Temperature Profile °C
Feed Zone: 25 - 40
Barrel: 175 - 185
Die Head: 185 - 195
Nozzle: 170 - 200
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