Chimei Polylac PA-746 High Flow Medium Impact ABS Resin

Polylac® PA-746 High Flow Medium Impact ABS Resin

POLYLAC PA-746 is CHIMEI’s high-flow ABS resin. It has a melt flow index of 29 ml/10min and impact strength of 28 KJ/m2. This resin is ideal for thin-wall parts, offering easy molding of complex shapes. It maintains strength at low temperatures and resists heat well. With 39 MPa tensile strength and 60 MPa flexural strength, PA-746 is perfect for gadget cases and appliance components. Manufacturers value its processability and durability.

Application: Suitable for thin wall and high impact strength molding parts
Character: High flowability, high impact strength

ABS Resin

Chimei POLYLAC® ABS Resin

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High Flowability for Complex Designs

Polylac PA-746 ABS by Chimei offers high flowability (29 ml/10min), making it ideal for thin-walled parts. Its easy molding reduces cycle times and ensures smooth, detailed finishes in tight spaces.

Toughness in Any Environment

With high impact strength (28 kJ/m² at 23°C), this ABS resin withstands drops and stress. It performs reliably even at -30°C, perfect for automotive or outdoor gear needing durability.

Heat Resistance & Safety Compliance

PA-746 resists heat (Vicat 103°C) and meets UL94 HB flammability standards. Low mold shrinkage (0.4–0.7%) ensures stable dimensions, while easy processing (pre-dry at 80–85°C) saves time and costs.

Polylac® PA-746 Datasheet

High Flow ABS POLYLAC® PA-746
Product Description: High flow, Medium impact
Properties	ISO Test Method	Test Condition	Unit	PA-746
Melt Flow Index	1133	220℃×10KG	ml/10 min	29
Mass Density	1183	23 ℃	g/cm3	1.03
Tensile Strength	527	50 mm/min, yield	MPa	39
Tensile Strength	527	50 mm/min, break	MPa	29
Tensile Elongation	527	50 mm/min	%	35
Flexural Strength	178	2 mm/min	MPa	60
Flexural Modulus	178	2 mm/min	GPa	1.8
Izod Impact Strength	180/1A	23℃, Notched	KJ/m2	28
Izod Impact Strength	180/1A	-30℃, Notched	KJ/m2	12
Charpy Impact Strength	179	23℃, Notched	KJ/m2	30
Charpy Impact Strength	179	-30℃, Notched	KJ/m2	14
Vicat Softening Temp.	306	50℃/hr;1KG	℃	103
Vicat Softening Temp.	306	50℃/hr;5KG	℃	94
Heat Distortion Temp.	75/A	1.8MPa, unannealed	℃	82
Heat Distortion Temp.	75/A	1.8MPa, annealed	℃	96
Coefficient of Linear Thermal Expansion	11359	–	–	9.2 x 10-5
Flammability	–	UL-94	–	1.5mm HB
Mold Shrinkage	294-4	–	%	0.4~0.7
Symbol	1043	–	–	>ABS<
				March 11, 2024

Polylac® PA-746 UL Product iQ

POLYLAC® PA-746 UL Product iQ
File Number: E56070	Yellow Card™	Acrylonitrile Butadiene Styrene (ABS) “POLYLAC”, furnished as pellets
FLAMMABILITY PROPERTIES	VALUE	TEST METHOD
Flammability		ANSI/UL 94
1.5 mm, Color: ALL	HB
3.0 mm, Color: ALL	HB
ISO/IEC FLAMMABILITY PROPERTIES	VALUE	TEST METHOD
Flammability		IEC 60695-11-10
1.5 mm, Color: ALL	HB75
3.0 mm, Color: ALL	HB40
ELECTRICAL PROPERTIES	VALUE	TEST METHOD
Hot-wire Ignition (HWI)		UL 746A
1.5 mm	PLC 4
3.0 mm	PLC 3
High Amp Arc Ignition (HAI)		UL 746A
1.5 mm	PLC 0
3.0 mm	PLC 0
Comparative Tracking Index (CTI)	PLC 0	UL 746A
High Voltage Arc Tracking Rate (HVTR)	PLC 2
Volume Resistivity	1.0E+16 ohms·cm	ASTM D257/IEC
		60093
High Voltage, Low Current Arc Resistance	PLC 6
THERMAL PROPERTIES	VALUE	TEST METHOD
Relative Thermal Index – Electrical Strength		UL 746B
1.5 mm	85 °C
3.0 mm	85 °C
Relative Thermal Index – Mechanical Impact		UL 746B
1.5 mm	80 °C
3.0 mm	80 °C
Relative Thermal Index – Mechanical Strength		UL 746B
1.5 mm	85 °C
3.0 mm	85 °C
		Report Date: 1983-06-23

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