LSG8

  • PA12 GF40
  • Colour: Natural Colour & Black
  • Reinforced with 30% Glass Fiber
  • Product Benefits: High dimensional stability, high rigidity, and low moisture absorption
  • Certificate: RoHS, REACH
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40% Glass Fiber Reinforced Nylon 12 (PA12 GF40)

Product Overview

PA12 GF40 is a high glass fiber content (40%) reinforced polyamide 12, offering outstanding structural rigidity, low warpage, and excellent creep resistance. It is especially suitable for parts subjected to long-term static loads or requiring high dimensional precision. Compared to PA12 GF30, PA12 GF40 is more appropriate for applications that demand higher strength and rigidity, while still retaining the low moisture absorption and chemical resistance of PA12.

For deeper insights into high-performance nylons, see our guide: Engineering Plastics Guide.

 

Technical Specifications

  • Base Material: Nylon 12 (PA12 / Polyamide 12)

  • Glass Fiber Content: 40%

  • Tensile Strength: 140 MPa

  • Elongation at Break: 4%

  • Notched Impact Strength (23℃): 20 kJ/m²

  • Density: 1.38 g/cm³

  • Melting Point: 185℃

  • Color Options: Natural, Black

 

Applications

PA12 GF40 is ideal for structural designs requiring high rigidity and long-term load-bearing performance:

 

Comparison with Other Glass Fiber Reinforced Nylon Grades

Technical Comparison of PA12 GF40 vs. Other Nylon GF Grades
  PA12 GF40 PA12 GF30 PA12 GF50 PA6 GF40 PA66 GF40
Tensile Strength 140 MPa 110 MPa 166 MPa 185 MPa 180 MPa
Elongation at Break 4% 5% 3.5% 2.8% 2.5%
Notched Impact Strength 20 kJ/m² 21 kJ/m² 20 kJ/m² 13 kJ/m² 11 kJ/m²
Density 1.38 g/cm³ 1.28 g/cm³ 1.47 g/cm³ 1.46 g/cm³ 1.41 g/cm³
Moisture Absorption Low Low Low Medium to High Medium

If you are comparing GF-reinforced nylons for structural strength, check our article Top Plastics for Metal Replacement.

 

Application Images

Automotive fuel connector made with PA12 GF40 Structural outdoor component using PA12 GF40
PA12 GF40 is the ideal engineering solution for applications demanding high structural strength, long-term load durability, and dimensional precision.

Frequently Asked Questions about PA12 GF40

  • What is PA12 GF40?
    PA12 GF40 is Nylon 12 reinforced with 40% glass fiber, offering high rigidity, creep resistance, and low warpage. It is designed for demanding structural parts compared to PA12 GF30.
  • What are the advantages of PA12 GF40 over PA12 GF30?
    PA12 GF40 provides higher stiffness and tensile strength, making it suitable for structural and load-bearing applications, while maintaining low moisture absorption and chemical resistance.
  • Where is PA12 GF40 commonly used?
    It is widely applied in automotive structural brackets, electronic housings, pneumatic connectors, bicycle joints, and outdoor equipment parts requiring long-term dimensional stability.
  • Can PA12 GF40 replace metals?
    Yes, in many lightweight structural parts where metal replacement is needed, PA12 GF40 can deliver strong performance with reduced weight and corrosion resistance.
  • What are the limitations of PA12 GF40?
    Compared to PA6 GF40 or PA66 GF40, PA12 GF40 has lower heat resistance, making it less suitable for very high-temperature environments.
Technical Properties
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Properties Test Method    Units Conditions Value
Density ISO 1183 g/cm3 Dry 1.38
Tensile strength at break ISO 527
(50mm/min)		 Mpa Dry 140
Elongation at break ISO 527
(50mm/min)		 % Dry 4
Impact strength ISO 180-1C
Charpy,23℃		 Kj/㎡ Dry 95
Notched impact strength ISO 180-1A
Charpy,23℃		 Kj/㎡ Dry 20
Ball indentation hardness ISO Mpa Dry 85
Melting point ISO 3146C DSC ℃ Dry 185
Heat deflection temperature HDT/A ISO 75
1.8MPa		 ℃ Dry 175
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