IROGRAN® A 89 E 4372

Polyester-based Thermoplastic Polyurethane

Product Description:

IROGRAN® A 89 E 4372 is a polyester-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are good oil and solvent resistance, abrasion resistance, excellent wear performance, good low temperature performance, resistance to dynamic stress, short cycle times and high melt stability.

MAIN APPLICATIONS:

Thick wall technical parts, seals and gaskets and thick wall extrusion profiles.

Details

At Jan.2016: US / EAIME / APAC - / MTS / MTO finished 09.10.2016

Properties	Key	NORM	Value	Unit
Hardness (after 3 sec.)	M	ASTM D 2240	88	Shore A
Hardness (after 3 sec.)	M	ASTM D 2240	41	Shore D
Density	M	ASTM D 792	1.19	g/cm³
Tensile strength	E	ASTM D 412	8090	psi
Elongation @ break	E	ASTM D 412	610	%
Tensile stress @ 100% elongation	E	ASTM D 412	940	psi
Tensile stress @ 300% elongation	E	ASTM D 412	1670	psi
Tear strength	E	ASTM D 624	530	pli
Flexural modulus @ 23°C	M	ASTM D 790	4120	psi
Flexural modulus @ -29°C	M	ASTM D 790	13950	psi
Abrasion	M	ISO 4649	28	mm³
Taber abrasion H-18 wheel 1000g	M	ASTM D 3389	9	mg/1000 cycles
Bayshore rebound resilience	M	ASTM D 2632	42	%
Compression set at 22h @ 23°C	M	ASTM D 395	26	%
Compression set at 22h @ 70°C	M	ASTM D 395	68	%
Mold shrinkage	M	ASTM D 955	1.1	%
Softening range low	E	Huntsman TMA	189	°C
Softening range high	E	Huntsman TMA	207	°C
Glass transition temperature (DSC)	E	ASTM D 3418	-41	°C
Vicat softening point VST/A120	M	ASTM D 1525	104	°C

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 = 4 cm³/10min

Processing Parameter:	Extrusion
Temperature Profile	°C
Feed Zone:	25 - 40
Barrel:	195 - 205
Die Head:	200 - 210
Nozzle:	195 - 210

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