Chimei Polylac® PA-77NB ABS

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Chimei POLYLAC PA-77NB ABS Resin

Polylac® PA-77NB ABS Resin High Heat Grade


Chimei POLYLAC PA-77NB is a high-heat ABS resin engineered for demanding applications. Combining exceptional heat resistance (Vicat 115°C) with low VOC emissions and a low-gloss finish, this POLYLAC® ABS variant ensures durability and compliance for automotive interiors, electronics, and industrial components.

  • Character: Low VOC, heat resistance
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Key technical data

  • Heat Resistance: Vicat 115°C / HDT 106°C
  • Impact Strength: 23 KJ/m² (Izod, 23°C)
  • Tensile Strength: 45 MPa
  • Mold Shrinkage: 0.3–0.6%
  • Flammability: UL94 HB (1.5mm)
  • Density: 1.06 g/cm³

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ISO TDSDownload
MSDSDownload
Process GuideDownload
UL Product iQDownload

Exceptional Heat Resistance

With a Vicat softening temperature of 115°C and heat deflection up to 106°C, POLYLAC PA-77NB withstands high-temperature environments, preventing warping in automotive dashboards or under-hood components.

Low VOC & Odor

Ideal for enclosed spaces like car interiors, this High Heat ABS minimizes harmful emissions and odors, meeting strict automotive and electronics industry standards for air quality.

Robust Mechanical Performance

A tensile strength of 45 MPa and impact resistance of 23 KJ/m² ensure durability for snap-fit parts, housings, and structural components exposed to stress or vibration.

Chimei POLYLAC PA-77NB ABS

Applications

  • Automotive Interiors: Dashboard panels, trim components, air vents.
  • Electronics: Housing for routers, power tools, and heat-sensitive devices.
  • Consumer Goods: Appliances requiring low gloss and high dimensional stability.
Chimei POLYLAC PA-77NB application

Polylac® PA-77NB Datasheet

High Heat ABS POLYLAC®  PA-77NB
Product Description: Low emission, Low odour, Low gloss
PropertiesISO Test MethodTest ConditionUnitPA-77NB
Melt Flow Index1133 220℃×10KGml/10 min10 
Mass Density1183 23 ℃g/cm31.06 
Tensile Strength527 50 mm/min, yieldMPa45 
50 mm/min, breakMPa–
Tensile Elongation527 50 mm/min%40 
Flexural Strength178 2 mm/minMPa70 
Flexural Modulus2 mm/minGPa2.2 
Izod Impact Strength180/1A23℃, NotchedKJ/m223 
-30℃, NotchedKJ/m2–
Charpy Impact Strength179 23℃, NotchedKJ/m221 
-30℃, NotchedKJ/m2–
Vicat Softening Temp.306 50℃/hr;1KG℃115 
50℃/hr;5KG℃108 
Heat Distortion Temp.75/A1.8MPa, unannealed℃86 
1.8MPa, annealed℃106 
Coefficient of Linear Thermal Expansion11359 ––8.4 x 10-5
Flammability–UL-94–1.5mm HB
Mold Shrinkage294-4–%0.3~0.6
Symbol1043 ––>ABS<
March  12, 2025
Notes：These are typical properties only and are not to be construed as specifications. Users should confirm results by their own test.

Polylac® PA-77NB UL Product iQ

POLYLAC® PA-77NB | UL Product iQ
File Number: E56070Yellow Card™Acrylonitrile Butadiene Styrene (ABS) “POLYLAC”, furnished as pellets
FLAMMABILITY PROPERTIESVALUETEST METHOD
FlammabilityANSI/UL 94
1.5 mm, Color: ALLHB
3.0 mm, Color: ALLHB
ISO/IEC FLAMMABILITY PROPERTIESVALUETEST METHOD
FlammabilityIEC 60695-11-10
1.5 mm, Color: ALLHB75
3.0 mm, Color: ALLHB40
ELECTRICAL PROPERTIESVALUETEST METHOD
Hot-wire Ignition (HWI)UL 746A
1.5 mmPLC 4
3.0 mmPLC 4
High Amp Arc Ignition (HAI)UL 746A
1.5 mmPLC 1
3.0 mmPLC 1
Comparative Tracking Index (CTI)PLC 2UL 746A
High Voltage Arc Tracking Rate (HVTR)PLC 2
High Voltage, Low Current Arc ResistancePLC 6
THERMAL PROPERTIESVALUETEST METHOD
Relative Thermal Index – Electrical StrengthUL 746B
1.5 mm50   °C
3.0 mm50   °C
Relative Thermal Index – Mechanical ImpactUL 746B
1.5 mm50   °C
3.0 mm50   °C
Relative Thermal Index – Mechanical StrengthUL 746B
1.5 mm50   °C
3.0 mm50   °C

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