IROGRAN® A 85 E 4993

Polyester-based Thermoplastic Polyurethane

Product Description:

IROGRAN® A 85 E 4993 is a polyester-based Thermoplastic Polyurethane (TPU) for melt calendering. Key features are abrasion resistance, excellent wear performance, good low temperature performance, high elasticity and a glossy surface.

MAIN APPLICATIONS:

Thin wall extrusion profiles, textile lamination and calendering applications.

Details

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

Properties	Key	NORM	Value	Unit
Hardness (after 3 sec.)	M	ASTM D 2240	86	Shore A
Hardness (after 3 sec.)	M	ASTM D 2240	36	Shore D
Density	M	ASTM D 792	1.21	g/cm³
Tensile strength	M	ASTM D 412	4020	psi
Elongation @ break	M	ASTM D 412	700	%
Tensile stress @ 100% elongation	M	ASTM D 412	970	psi
Tensile stress @ 300% elongation	M	ASTM D 412	1650	psi
Tear strength	M	ASTM D 624	590	pli
Abrasion	M	ISO 4649	25	mm³
Bayshore rebound resilience	M	ASTM D 2632	35	%
Compression set at 70h @ 23°C	M	ASTM D 395	25	%
Compression set at 24h @ 70°C	M	ASTM D 395	50	%
Mold shrinkage	M	ASTM D 955	0.9	%
Softening range low	E	Huntsman TMA	145	°C
Softening range high	E	Huntsman TMA	160	°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 / 10kg] ISO 1133-1 = 65 cm³/10min

Processing Parameter:	Extrusion
Temperature Profile	°C
Feed Zone:	25 - 40
Barrel:	170 - 195
Die Head:	175 - 205
Nozzle:	175 - 200
Processing Parameter:	Calendering
Temperature Profile	°C
Front Roll:	160 - 180
Rear Roll:	160 - 180

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