Technical datasheet

POLYLAC® PA-777E

Supplied byChi Mei- Last Updated on Oct 29, 2025

POLYLAC® PA-777E by Chi Mei is an ultra-high heat resistant acrylonitrile butadiene styrene (ABS) copolymer with moderate impact strength. It provides solvent resistance, good plastic surface hardness and good workability. Offers good mechanical property and dimensional stability. It is designed for injection molding method. It is recommended for shells for heat producing household appliances, hair dryer tubes, iron casings, heaters, auto parts and water tank covers. POLYLAC® PA-777E complies with PFOA, PFOS, RoHS, SBHC and UL 94 HB Flame Rating.
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Compliance

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POLYLAC® PA-777E properties

Electrical properties

PropertiesValue & unitTest conditionTest method
Arc Resistance0.0 Visible After LoginVisible After LoginVisible After Login
Comparative Tracking Index (CTI)0.0 Visible After LoginVisible After LoginVisible After Login
High Amp Arc Ignition (HAI)0.0 Visible After LoginVisible After LoginVisible After Login
High Amp Arc Ignition (HAI)0.0 Visible After LoginVisible After LoginVisible After Login
High-Voltage Arc Tracking Rate (HVTR)0.0 Visible After LoginVisible After LoginVisible After Login
Hot-wire Ignition (HWI)0.0 Visible After LoginVisible After LoginVisible After Login
Hot-wire Ignition (HWI)0.0 Visible After LoginVisible After LoginVisible After Login

Flammability properties

PropertiesValue & unitTest conditionTest method
Auto-ignition Temperature0.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flash Point0.0 Visible After LoginVisible After LoginVisible After Login

Mechanical properties

PropertiesValue & unitTest conditionTest method
Flexural Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Flexural Strength0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Izod0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Izod0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Elongation0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength at Break0.0 Visible After LoginVisible After LoginVisible After Login

Other properties

PropertiesValue & unitTest conditionTest method
Tensile Strength at Yield0.0 Visible After LoginVisible After LoginVisible After Login
Upper/lower flammability or explosive limits0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Linear Mold Shrinkage0.0 Visible After LoginVisible After LoginVisible After Login
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)0.0 Visible After LoginVisible After LoginVisible After Login

Thermal properties

PropertiesValue & unitTest conditionTest method
CTE, Linear, Parallel to Flow0.0 Visible After LoginVisible After LoginVisible After Login
Decomposition Temperature0.0 Visible After LoginVisible After LoginVisible After Login
Heat Deflection Temperature (HDT), Annealed0.0 Visible After LoginVisible After LoginVisible After Login
Heat Deflection Temperature (HDT), Unannealed0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Electrical0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Electrical0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical with Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical with Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical without Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical without Impact0.0 Visible After LoginVisible After LoginVisible After Login
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login

POLYLAC® PA-777E Processing Guidelines

Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
Back PressureVisible After LoginVisible After Login
Barrel TemperatureVisible After LoginVisible After Login
Holding PressureVisible After LoginVisible After Login
Injection PressureVisible After LoginVisible After Login
Mold TemperatureVisible After LoginVisible After Login
Pre-Drying TemperatureVisible After LoginVisible After Login
Pre-drying TimeVisible After LoginVisible After Login

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