PA9T Nylon: Low Moisture High-Temp Nylon

Understanding the ultra-low water absorption and stability of PA9T.

PA9T (Polyamide 9T) is a high-performance semi-aromatic polyamide (HTN) that is highly valued for having the lowest water absorption among high-temperature nylons. This makes it an ideal material for precision components that must maintain their exact dimensions in humid environments.

PA9T Nylon black granules

Core Properties of PA9T

  • Ultra-Low Water Absorption: Significantly lower than PA6T, PA66, or PA46, providing outstanding dimensional stability.
  • High Melting Point: Melting point of approx. 265°C, allowing for excellent heat resistance in electronic soldering processes.
  • Chemical Resistance: Excellent resistance to automotive fluids, oils, and chemicals.
  • Impact Strength: Good toughness compared to other high-temperature nylons.

Typical Applications

Because of its stability and high heat resistance, PA9T is widely used in:

  • Electronics: SMT connectors, USB-C receptacles, and micro-switches.
  • Automotive: Engine sensors, fuel system components, and electrical connectors.
  • Industrial: Precision gears and high-load structural parts.
Looking for PA9T? Send us your drawing or performance requirements. We supply PA9T in granules, rods, sheets, and custom machined parts.