IROGRAN® A 78 P 4766

Polyether-based Thermoplastic Polyurethane

Product Description:

IROGRAN® A 78 P 4766 is a high flame-retardant, halogen-free, polyether-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are excellent hydrolysis and microbial resistance, good oil and solvent resistance, good low temperature performance and high elasticity.

MAIN APPLICATIONS:

Thin wall extrusion profiles, spiral hoses and cable jacketing.

Details

At Jan.2016: US / EAIME / APAC - / MTS / MTS finished 09.10.2016 19.02.2020FW change the TMA from 165-190°C too 170-185°C

Properties	Key	NORM	Value	Unit
Hardness (after 3 sec.)	M	ASTM D 2240	82	Shore A
Hardness (after 3 sec.)	M	ASTM D 2240	32	Shore D
Density	M	ASTM D 792	1.16	g/cm³
Tensile strength	E	ASTM D 412	4700	psi
Elongation @ break	E	ASTM D 412	680	%
Tensile stress @ 100% elongation	E	ASTM D 412	700	psi
Tensile stress @ 300% elongation	E	ASTM D 412	1220	psi
Tear strength	E	ASTM D 624	340	pli
Flexural modulus @ 23°C	M	ASTM D 790	3090	psi
Flexural modulus @ -29°C	M	ASTM D 790	4010	psi
Abrasion	M	ISO 4649	43	mm³
Bayshore rebound resilience	M	ASTM D 2632	56	%
Compression set at 22h @ 23°C	M	ASTM D 395	25	%
Compression set at 22h @ 70°C	M	ASTM D 395	71	%
Mold shrinkage	M	ASTM D 955	1.2	%
Softening range low	E	Huntsman TMA	170	°C
Softening range high	E	Huntsman TMA	185	°C
Glass transition temperature (DSC)	E	ASTM D 3418	-49	°C
Vicat softening point VST/A120	M	ASTM D 1525	84	°C
Certificates			UL 94 - V0

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 = 110 cm³/10min

Processing Parameter:	Extrusion
Temperature Profile	°C
Feed Zone:	25 - 40
Barrel:	165 - 190
Die Head:	175 - 190
Nozzle:	170 - 185

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