PPO SABIC (Former GE) GFN1720‑780

PPO SABIC (Former GE) GFN1720‑780 is a 20% glass‑fiber‑reinforced modified polyphenylene ether (PPE + PS blend) resin. It features high rigidity, excellent heat resistance, good mechanical properties and dimensional stability.

Main Applications

Water‑sports equipment: surfboards, water‑skiing devices, buoys, sports‑boat housings and other toughness‑required parts.

Electrical‑Electronic Industry: connectors, coil bobbins, switch relays, housings for televisions, computers, etc.

Automotive Industry: instrument‑panel components, radiator grilles, speaker grilles, wheel housings, pump filter screens.

Mechanical Industry: gears, bearings, pump housings, impellers, valve components, pipes, blower blades.

Home Appliance & Office Equipment: housings for copiers, printers and facsimile machines; components for air‑conditioners and rice cookers.

Physical Properties

Property Category	Test Item	Test Condition	Test Standard	Test Data	Unit
Physical Properties	Specific Gravity / Density	—	ASTM D792 / ISO 1183	1.24	g/cm³
	Water Absorption	Saturated at 23°C	ISO 62	0.15	%
	Melt Flow Rate (MFR)	300°C / 5.0 kg	ASTM D1238	4.5	g/10 min
	Molding Shrinkage‑Flow Direction	—	SABIC Method	0.2‑0.4	%
Mechanical Properties	Tensile Strength at Yield	—	ASTM D638 / ISO 527	90	MPa
	Flexural Strength (Yield / Break)	—	ASTM D790 / ISO 178	145 / 135	MPa
	Flexural Modulus	—	ASTM D790 / ISO 178	4800 / 4500	MPa
	Izod Notched Impact Strength	23°C	ASTM D256	60	J/m
	Ball‑Indentation Hardness	—	ISO 2039‑1	100	MPa
Thermal Properties	HDT @1.82 MPa, unannealed	—	ASTM D648	171	°C
	HDT @0.45 MPa, unannealed	—	ISO 75‑2/Be	170	°C
	Vicat Softening Temperature	Rate B/50	ASTM D1525	181	°C
	Linear Thermal Expansion Coefficient‑Flow Direction	‑40°C ~ 40°C	ASTM E831	4.0E‑05	cm/cm/°C
	Relative Temperature Index (RTI)	—	UL 746B	65	°C
Electrical Properties	Volume Resistivity	—	IEC 60093	1.0E+15	Ohm·cm
	Dielectric Strength	0.8 mm	IEC 60243‑1	30	kV/mm
	Relative Permittivity	50/60 Hz	IEC 60250	2.7	—
	Dissipation Factor	50/60 Hz	IEC 60250	0.006	—
Flammability	UL Flammability Rating	1.50 mm	UL 94	HB	—
	Limiting Oxygen Index (LOI)	—	ISO 4589	23	%
	Glow‑Wire Flammability Index (GWFI)	3.2 mm	IEC 60695‑2‑12	960	°C

Injection Molding Parameters

Processing Stage	Parameter Item	Reference Value	Unit
Drying	Drying Temperature	110‑120	°C
	Drying Time	2‑4	h
Injection Temperature	Melt Temperature	290‑330	°C
	Rear Barrel Temperature	270‑290	°C
	Middle Barrel Temperature	290‑310	°C
	Front Barrel Temperature	310‑330	°C
	Nozzle Temperature	290‑310	°C
Mold Temperature	Mold Temperature	80‑120	°C

Note: All information above is for reference only!