IROGRAN® A 92 E 4738

Polyester-based Thermoplastic Polyurethane

Product Description:

IROGRAN® A 92 E 4738 is a polyester-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are hydrolytically stabilized, excellent wear performance, good low temperature performance, resistance to dynamic stress, high elasticity, robust processing and high melt stability.

MAIN APPLICATIONS:

Thick wall technical parts, thin wall extrusion profiles and thick wall extrusion profiles.

Details

At Jan.2016: US / EAIME / APAC MTO / MTS / MTS

Properties	Key	NORM	Value	Unit
Hardness (after 3 sec.)	M	ASTM D 2240	92	Shore A
Hardness (after 3 sec.)	M	ASTM D 2240	42	Shore D
Density	M	ASTM D 792	1.21	g/cm³
Tensile strength	E	ASTM D 412	9280	psi
Elongation @ break	E	ASTM D 412	450	%
Tensile stress @ 100% elongation	E	ASTM D 412	1350	psi
Tensile stress @ 300% elongation	E	ASTM D 412	4800	psi
Tear strength	E	ASTM D 624	600	pli
Flexural modulus @ 23°C	M	ASTM D 790	5970	psi
Flexural modulus @ -29°C	M	ASTM D 790	121970	psi
Abrasion	M	ISO 4649	22	mm³
Taber abrasion H-18 wheel 1000g	M	ASTM D 3389	19	mg/1000 cycles
Bayshore rebound resilience	M	ASTM D 2632	30	%
Compression set at 22h @ 23°C	M	ASTM D 395	30	%
Compression set at 22h @ 70°C	M	ASTM D 395	81	%
Mold shrinkage	M	ASTM D 955	0.7	%
Softening range low	E	Huntsman TMA	165	°C
Softening range high	E	Huntsman TMA	178	°C
Glass transition temperature (DSC)	E	ASTM D 3418	-26	°C
Vicat softening point VST/A120	M	ASTM D 1525	100	°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 [210°C / 10kg] ISO 1133-1 = 40 cm³/10min

Processing Parameter:	Extrusion
Temperature Profile	°C
Feed Zone:	25 - 40
Barrel:	190 - 210
Die Head:	200 - 215
Nozzle:	190 - 210

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