Amodel® PPA

Outperforms standard polyamides in heat, moisture and chemical resistance

Amodel® PPA outperforms standard polyamides with higher strength and stiffness at elevated temperatures, better retention of properties in humid environments, and greater resistance to a broader range of chemicals.

Higher Heat Resistance

Amodel® PPA is used to replace metal in high-temperature automotive applications. Continuous-use temperatures range from 120°C to 185°C (248°F to 365°F). Heat deflection temperatures (HDT) go up to 310°C (590°F).

Thermal properties comparison, ASTM test method

Amodel_ThermalProperties


Lower Moisture Absorption

Humid environments can have a devastating effect on the mechanical properties of standard polyamides. Amodel® PPA’s lower water absorption rate results in significantly less change in strength and stiffness, even with high levels of humidity.

Effect of moisture on tensile strength, ASTM test method

Amodel_MoistureTensile

Effect of moisture on flexural modulus, ASTM test method

Amodel_MoistureModulus


Better Chemical Resistance

Amodel® PPA’s highly aromatic ring structure provides greater resistance to a broader range of chemicals than standard aliphatic polyamides, even at high temperatures. This enables automotive, electrical and industrial components to withstand prolonged exposure to harsh chemicals:
  • Bio-diesel fuel
  • Brake fluid
  • Calcium chloride
  • Glycols
  • Synthetic motor oil
  • Road salt
  • Sulfuric acid
  • Transmission fluid
  • Zinc chloride

Grades

Amodel® PPA is available in a breadth of grades unequaled in the industry. A side-by-side comparison of typical properties provides a quick overview of performance capabilities. Individual data sheets are also available.

Base Resins

How We Make the Grades

Amodel® PPA products are based primarily on three semi-aromatic, semi-crystalline polyamide base resins, with each offering distinct performance and processing characteristics.

Glass fibers, heat stabilizers, impact modifiers, minerals and other materials are compounded with these base resins to create a comprehensive selection of Amodel® PPA products for use in a vast array of applications.

Amodel® PPA Base Resins
Base ResinProcessingDescriptionTgTm
°C°F°C°F
A-1000 SeriesHot-oil moldable (mold temp >135°C)High long-term thermal performance. High-flow HFZ grades available.123253313595
A-4000 SeriesHot-water moldable (temp <100°C)Fastest crystallization for very fast cycle times. Compatible with SMT processing. High-flow HFZ grades available.100212325617
A-6000 SeriesHot-water moldable (mold temp <100°C)Excellent processing characteristics and surface appearance.88190310590
A-8000 SeriesHot-oil moldable (mold temp >135°C)Highest long-term thermal performance. Best resistance to chemicals and moisture.130266325617

Standard Glass Fiber Reinforced Grades

Glass fibers boost strength and stiffness, while enhancing short-term thermal properties as well as long-term resistance to creep and fatigue. For applications requiring wall thickness greater than 3 mm (0.125 in.), consider one our AS grades.

Strength and stiffness comparison, ASTM test method

Amodel_StrengthStiffness

 

Glass Fiber Reinforced Grades
Amodel® A-1133 HS33% glass fiber, general purpose, heat stabilized
Amodel® A-1145 HS45% glass fiber, general purpose, heat stabilized
Amodel® A-1565 HS65% mineral/glass fiber, heat stabilized
Amodel® A-1933 HSL33% glass fiber, glycol resistant, heat stabilized, lubricated
Amodel® A-4160 HSL60% glass fiber, highest modulus, fast cycle time, hot-water moldable, heat stabilized, lubricated
Amodel® A-6135 HN35% glass fiber, high flow, hot-water moldable, heat stabilized, not lubricated
Amodel® A-8930 HS30% glass fiber, glycol resistant, heat stabilized
Amodel® A-8940 HS40% glass fiber, glycol resistant, heat stabilized
Amodel® A-8950 HS50% glass fiber, glycol resistant, heat stabilized
Grades for Wall Thicknesses >3 mm
Amodel® AS-1133 HS33% glass fiber, general purpose, heat stabilized
Amodel® AS-1145 HS45% glass fiber, general purpose, heat stabilized
Amodel AS-1566 HS65% mineral/glass fiber, heat stabilized
Amodel® AS-1933 HS33% glass fiber, glycol resistant, heat stabilized 
Amodel® AS-1935 HS35% glass fiber, glycol resistant, heat stabilized
Amodel® AS-1945 HS45% glass fiber, glycol resistant, heat stabilized
Amodel® AS-4133 HS33% glass fiber, fast cycle time, hot-water moldable, heat stabilized, lubricated
Amodel® AS-4133 L33% glass fiber, fast cycle time, hot-water moldable, lubricated
Amodel® AS-4145 HS45% glass fiber, fast cycle time, hot-water moldable, heat stabilized, lubricated

Drinking Water Grades

Drinking Water Grades
Amodel® DW-113030% glass fiber, approved for potable water contact
Amodel® DW-114040% glass fiber, approved for potable water contact
Amodel® DW-115050% glass fiber, approved for potable water contact

Carbon Fiber Reinforced Grades

Carbon Fiber Reinforced Grades
Amodel® A-1625 HS25% carbon fiber, conductive, heat stabilized

Impact Modified Grades

Impact modifiers add toughness and increase impact resistance. Toughened Amodel® PPA products are designated with the AT prefix. For applications needing low modulus at high temperature, consider an unfilled toughened grade.

Improved impact resistance, ASTM test method

Amodel_Impact-Resistance-graph.png

 

Toughened Grades
Amodel® AT-1001 LUnreinforced, impact modified, lubricated
Amodel® AT-1002 HSUnreinforced, impact modified, heat stabilized
Amodel® AT-1116 HS16% glass fiber, impact modified, heat stabilized
Amodel® AT-1125 HS25% glass fiber, impact modified, heat stabilized
Amodel® AT-6115 HS15% glass fiber, impact modified, high flow, hot-water moldable, heat stabilized
Amodel® AT-6130 HS30% glass fiber, impact modified, high flow, hot-water moldable, heat stabilized
Amodel® ET-1000 HSHighly impact modified, heat stabilized

Mineral/Glass Fiber Reinforced Grades

Minerals reduce warpage and differential shrinkage by disrupting the orientation of the glass fiber. This results in more uniform shrinkage and improves dimensional stability.
 
Coefficient of Linear Thermal Expansion
TemperatureDirectionTest MethodUnits

Amodel®
A-1133 HS 
33% Glass

Amodel®
AS-1566 HS 
65% Mineral/Glass

0° to 100°CFlowASTM E831ppm/°C2417
0° to 100°CTransverseASTM E831ppm/°C5540
100° to 200°CFlowASTM E831ppm/°C2717
100° to 200°CTransverseASTM E831ppm/°C11572

Data Sheet: Amodel® AS-1566 HS
 

Mineral/Glass Fiber Reinforced Grades
Amodel® A-1565 HS65% mineral/glass fiber, heat stabilized
Amodel® AS-1566 HS65% mineral/glass fiber, heat stabilized, for wall thicknesses >3 mm

High Flow Grades

High flow grades improve the molding of thin-walled components typical of electronics applications. They are designated with HFZ followed by standard Amodel® PPA nomenclature.

Amodel_SpiralFlow

 

High-Flow Grades
Amodel HFZ A-4133 L33% glass fiber, high flow, fast cycle time, hot-water moldable, lubricated

High Reflectivity Grades

High reflectivity grades for LEDs
Amodel® A-1133 NL WH50533% glass fiber, high-reflectivity white for LEDs
Amodel® A-4122 HR WH11722% glass fiber, high-reflectivity white for LEDs, fast cycle time, hot-water moldable
Amodel® A-4122 LS WH67822% glass fiber, high-reflectivity white for LEDs, fast cycle time, hot-water moldable, light stabilized
Amodel® A-4122 NL WH90522% glass fiber, high-reflectivity white for LEDs, fast cycle time, hot-water moldable
Amodel® A-4422 LS WH11822% mineral, high-reflectivity white for LEDs, fast cycle time, hot-water moldable, light stabilized

Flame Retardant Grades

Flame retardant grades have achieved a UL 94 V0 rating and are compatible with SMT processing techniques such as infrared reflow and vapor phase soldering.

Flame-Retardant Grades
Amodel® HFFR-413333% glass fiber, halogen-free, fast cycle time, hot-water moldable
Amodel® AFA-6133 V0 Z33% glass fiber, flame retardant, high flow, hot-water moldable
Amodel® AFA-6145 V0 Z45% glass fiber, flame retardant, high flow, hot-water moldable

UL Rating and Relative Thermal Index (RTI)
GradeThickness, mmUL 94 RatingRelative Thermal IndexOther Ratings
 ElectricalMechanical with ImpactMechanical without ImpactHWIHAI
Amodel® HFFR-41330.40V-0140°C65°C65°C42
 0.75V-0140°C115°C115°C12
 1.00V-0140°C115°C115°C12
 1.50V-0, 5VA140°C120°C120°C01
 3.00V-0, 5VA140°C125°C125°C01
Amodel® AFA-6133 VO ZO.30V-0105°C65°C65°C01
 0.75V-0130°C130°C130°C00
 1.50V-0, 5VA130°C130°C130°C00
 3.00V-0, 5VA130°C130°C130°C00
Amodel® AFA-6145 VO ZO.75V-0140°C 130°C01
 1.50V-0140°C 130°C01
 3.00V-0140°C140°C140°C01

Electrically Friendly Grades

Outstanding electrical properties make Amodel® PPA ideal for use in connectors, switches and other applications requiring the material to act as an electrical insulator.

Electrically Friendly, Heat Stabilized Grades
Amodel® AE-413333% glass fiber, hot-water moldable, fast cycle times, heat stabilized
Amodel® AE-893030% glass fiber, best chemical resistance, lowest moisture absorption, heat stabilized
Amodel® AE-893535% glass fiber, best chemical resistance, lowest moisture absorption, heat stabilized
Amodel® AE-895050% glass fiber, best chemical resistance, lowest moisture absorption, heat stabilized

Electrical Properties*
PropertyUnitsAmodel® AE-1133Amodel® AE-4133Amodel® AE-8930Amodel® AE-8930Amodel® AE-8950Test Method
Volume Resistivityohms-cm1E+165.6E+151E+161E+161E+16ASTM D257
Dielectric Strength, 3.2 mmkV/mm1E+1621191821ASTM D149
Dielectric Constant  26 26 ASTM D150
 60HZ 4.404.104.354.00  
 1 MHz 4.203.754.024.00  
Dissipation Factor      ASTM D150
 60HZ 0.0050.0060.0070.020  
 1 MHz 0.0170.015    
Arc Resistancesec140    ASTM D495
Comparative Tracking Index (CTI)V550600>600>600>600UL 746
High Voltage Arc Tracking Rate (HVTR)mm/min 18   UL 746

* UL performance class ratings vary for each property; visit www.ul.com for definitions.

High Heat Resistant Grades

High Heat Resistant Grades
Amodel® A-4145 HH45% glass fiber, high flow, hot-water moldable, continuous use 220°C to 270°C

Wear Resistant Grades

Wear Resistant Grades
Amodel® A-1130 FW30% glass fiber, internally lubricated, wear resistance