IROGRAN® A 70 E 4675

Polyester-based Thermoplastic Polyurethane

Product Description:
IROGRAN® A 70 E 4675 is a polyester-based Thermoplastic Polyurethane (TPU) for injection molding applications. Key features are plasticizer-free, excellent multilayer bonding, excellent surface definition, high elasticity, short cycle times, robust processing and high melt stability.
MAIN APPLICATIONS:
Thick wall technical parts and thin wall technical parts.

Details

At Jan.2016: US / EAIME / APAC - / MTS / MTO finished 08.10.2016
Properties Key NORM Value Unit
Hardness (after 3 sec.) M ASTM D 2240 75 Shore A
Hardness (after 3 sec.) M ASTM D 2240 25 Shore D
Density M ASTM D 792 1.15 g/cm³
Tensile strength M ASTM D 412 2200 psi
Elongation @ break M ASTM D 412 650 %
Tensile stress @ 100% elongation M ASTM D 412 570 psi
Tensile stress @ 300% elongation M ASTM D 412 950 psi
Tear strength M ASTM D 624 300 pli
Abrasion M ISO 4649 90 mm³
Bayshore rebound resilience M ASTM D 2632 25 %
Compression set at 70h @ 23°C M ASTM D 395 35 %
Compression set at 24h @ 70°C M ASTM D 395 58 %
Mold shrinkage M ASTM D 955 1.6 %
Softening range low E Huntsman TMA 150 °C
Softening range high E Huntsman TMA 190 °C
  • M = Injection moulded 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  =  30 cm³/10min

Processing Parameter:   Injection Molding
Temperature Profile °C
Feed Zone: 25 - 40
Barrel: 165 - 190
Nozzle: 175 - 200
Mold: 20 - 50
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