IROGRAN® A 70 H 4673N

Polyester-based Thermoplastic Polyurethane

Product Description:

IROGRAN® A 70 H 4673N is a polyester-based Thermoplastic Polyurethane (TPU) for injection molding applications. Key features are phthalate-free, excellent wear performance, good low temperature performance, high elasticity, short cycle times and high transparency.

MAIN APPLICATIONS:

Thick wall technical parts and thin wall technical parts.

Details

04.05.,2020FW - update the physical properties and delete the DP

Properties	Key	NORM	Value	Unit
Hardness (after 3 sec.)	M	ASTM D 2240	74	Shore A
Hardness (after 3 sec.)	M	ASTM D 2240	25	Shore D
Density	M	ASTM D 792	1.16	g/cm³
Tensile strength	M	ASTM D 412	3600	psi
Elongation @ break	M	ASTM D 412	800	%
Tensile stress @ 100% elongation	M	ASTM D 412	475	psi
Tensile stress @ 300% elongation	M	ASTM D 412	1000	psi
Tear strength	M	ASTM D 624	510	pli
Abrasion	M	ISO 4649	45	mm³
Bayshore rebound resilience	M	ASTM D 2632	50	%
Compression set at 70h @ 23°C	M	ASTM D 395	24	%
Compression set at 24h @ 70°C	M	ASTM D 395	40	%
Mold shrinkage	M	ASTM D 955	2,0	%
Softening range low	E	Huntsman TMA	155	°C
Softening range high	M	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 [190°C / 5kg] ISO 1133-1 = 35 cm³/10min

Processing Parameter:	Injection Molding
Temperature Profile	°C
Feed Zone:	25 - 40
Barrel:	165 - 175
Nozzle:	170 - 185
Mold:	20 - 50

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