IROGRAN® A 78 P 4766

Polyether-based Thermoplastic Polyurethane

Product Description:
IROGRAN® A 78 P 4766 is a high flame-retardant, halogen-free, polyether-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are excellent hydrolysis and microbial resistance, good oil and solvent resistance, good low temperature performance and high elasticity.
MAIN APPLICATIONS:
Thin wall extrusion profiles, spiral hoses and cable jacketing.

Details

At Jan.2016: US / EAIME / APAC - / MTS / MTS finished 09.10.2016 19.02.2020FW change the TMA from 165-190°C too 170-185°C
Properties Key NORM Value Unit
Hardness (after 3 sec.) M ASTM D 2240 82 Shore A
Hardness (after 3 sec.) M ASTM D 2240 32 Shore D
Density M ASTM D 792 1.16 g/cm³
Tensile strength E ASTM D 412 4700 psi
Elongation @ break E ASTM D 412 680 %
Tensile stress @ 100% elongation E ASTM D 412 700 psi
Tensile stress @ 300% elongation E ASTM D 412 1220 psi
Tear strength E ASTM D 624 340 pli
Flexural modulus @ 23°C M ASTM D 790 3090 psi
Flexural modulus @ -29°C M ASTM D 790 4010 psi
Abrasion M ISO 4649 43 mm³
Bayshore rebound resilience M ASTM D 2632 56 %
Compression set at 22h @ 23°C M ASTM D 395 25 %
Compression set at 22h @ 70°C M ASTM D 395 71 %
Mold shrinkage M ASTM D 955 1.2 %
Softening range low E Huntsman TMA 170 °C
Softening range high E Huntsman TMA 185 °C
Glass transition temperature (DSC) E ASTM D 3418 -49 °C
Vicat softening point VST/A120 M ASTM D 1525 84 °C
Certificates UL 94 - V0
  • 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  =  110 cm³/10min

Processing Parameter:   Extrusion
Temperature Profile °C
Feed Zone: 25 - 40
Barrel: 165 - 190
Die Head: 175 - 190
Nozzle: 170 - 185
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