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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