IROGRAN® A 89 E 4372

Polyester-based Thermoplastic Polyurethane

Product Description:
IROGRAN® A 89 E 4372 is a polyester-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are good oil and solvent resistance, abrasion resistance, excellent wear performance, good low temperature performance, resistance to dynamic stress, short cycle times and high melt stability.
MAIN APPLICATIONS:
Thick wall technical parts, seals and gaskets and thick wall extrusion profiles.

Details

At Jan.2016: US / EAIME / APAC - / MTS / MTO finished 09.10.2016
Properties Key NORM Value Unit
Hardness (after 3 sec.) M ASTM D 2240 88 Shore A
Hardness (after 3 sec.) M ASTM D 2240 41 Shore D
Density M ASTM D 792 1.19 g/cm³
Tensile strength E ASTM D 412 8090 psi
Elongation @ break E ASTM D 412 610 %
Tensile stress @ 100% elongation E ASTM D 412 940 psi
Tensile stress @ 300% elongation E ASTM D 412 1670 psi
Tear strength E ASTM D 624 530 pli
Flexural modulus @ 23°C M ASTM D 790 4120 psi
Flexural modulus @ -29°C M ASTM D 790 13950 psi
Abrasion M ISO 4649 28 mm³
Taber abrasion H-18 wheel 1000g M ASTM D 3389 9 mg/1000 cycles
Bayshore rebound resilience M ASTM D 2632 42 %
Compression set at 22h @ 23°C M ASTM D 395 26 %
Compression set at 22h @ 70°C M ASTM D 395 68 %
Mold shrinkage M ASTM D 955 1.1 %
Softening range low E Huntsman TMA 189 °C
Softening range high E Huntsman TMA 207 °C
Glass transition temperature (DSC) E ASTM D 3418 -41 °C
Vicat softening point VST/A120 M ASTM D 1525 104 °C
  • M = Injection molded parts to meet DIN & ASTM requirements. Parts at room temperature aged 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  =  4 cm³/10min

Processing Parameter:   Extrusion
Temperature Profile °C
Feed Zone: 25 - 40
Barrel: 195 - 205
Die Head: 200 - 210
Nozzle: 195 - 210
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