IROGRAN® A 85 C 4957

Polyester-based Thermoplastic Polyurethane

Product Description:

IROGRAN® A 85 C 4957 is a polyester-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are excellent wear performance and good low temperature performance.

MAIN APPLICATIONS:

Thin wall extrusion profiles and spiral hoses.

Details

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

Properties	Key	NORM	Value	Unit
Hardness (after 3 sec.)	M	ASTM D 2240	85	Shore A
Hardness (after 3 sec.)	M	ASTM D 2240	34	Shore D
Density	M	ASTM D 792	1.22	g/cm³
Tensile strength	M	ASTM D 412	4900	psi
Elongation @ break	M	ASTM D 412	720	%
Tensile stress @ 100% elongation	M	ASTM D 412	890	psi
Tensile stress @ 300% elongation	M	ASTM D 412	1440	psi
Tear strength	M	ASTM D 624	580	pli
Abrasion	M	ISO 4649	30	mm³
Bayshore rebound resilience	M	ASTM D 2632	36	%
Compression set at 70h @ 23°C	M	ASTM D 395	18	%
Compression set at 22h @ 70°C	M	ASTM D 395	40	%
Mold shrinkage	M	ASTM D 955	1.0	%
Softening range low	E	Huntsman TMA	155	°C
Softening range high	E	Huntsman TMA	165	°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 [195°C / 8,7kg] ISO 1133-1 = 30 cm³/10min

Processing Parameter:	Extrusion
Temperature Profile	°C
Feed Zone:	25 - 40
Barrel:	190 - 210
Die Head:	190 - 210
Nozzle:	190 - 210

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