IROGRAN® A 78 E 4588

Polyester-based Thermoplastic Polyurethane

Product Description:

IROGRAN® A 78 E 4588 is a polyester-based Thermoplastic Polyurethane (TPU) for injection molding applications. Key features are plasticizer-free, good oil and solvent resistance, excellent wear performance, resistance to dynamic stress and short cycle times.

MAIN APPLICATIONS:

Thick wall technical parts and thin wall technical parts.

Details

At Jan.2016: US / EAIME / APAC - / MTS / - finished 08.10.2016

Properties	Key	NORM	Value	Unit
Hardness (after 3 sec.)	M	ASTM D 2240	80	Shore A
Hardness (after 3 sec.)	M	ASTM D 2240	30	Shore D
Density	M	ASTM D 792	1.20	g/cm³
Tensile strength	M	ASTM D 412	6090	psi
Elongation @ break	M	ASTM D 412	730	%
Tensile stress @ 100% elongation	M	ASTM D 412	740	psi
Tensile stress @ 300% elongation	M	ASTM D 412	1270	psi
Tear strength	M	ASTM D 624	500	pli
Abrasion	M	ISO 4649	25	mm³
Bayshore rebound resilience	M	ASTM D 2632	48	%
Compression set at 70h @ 23°C	M	ASTM D 395	30	%
Compression set at 24h @ 70°C	M	ASTM D 395	40	%
Mold shrinkage	M	ASTM D 955	1.6	%
Softening range low	E	Huntsman TMA	160	°C
Softening range high	E	Huntsman TMA	175	°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 = 20 cm³/10min

Processing Parameter:	Extrusion
Temperature Profile	°C
Feed Zone:	25 - 40
Barrel:	175 - 185
Die Head:	180 - 190
Nozzle:	175 - 190

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