Nylon Polyamide Injection Molding (PA6 & PA66)
Nylon, or polyamide, is an engineering plastic that provides high mechanical strength, toughness, and fatigue resistance. It is available unfilled or reinforced with glass fiber for added rigidity.
Key Properties
- Excellent strength-to-weight ratio
- High wear and abrasion resistance
- Good chemical resistance (especially to oils and fuels)
- Withstands elevated temperatures
Common Applications
Gears, bushings, connectors, and under-the-hood components. It performs especially well in mechanical parts that face friction or load.
Design Considerations
Plan for moisture absorption (up to 2%) that can slightly affect dimensions. Provide smooth transitions and radii to reduce stress. For glass-filled versions, ensure strong ejection and mold polishing to avoid drag.
Additives and Variants
- 15–50% glass fiber reinforced
- Lubricated or impact-modified grades
- Heat-stabilized and flame-retardant options
When to Choose Nylon
Choose PA6 or PA66 when mechanical performance and heat tolerance are key.
Explore related options on our Injection Molding Materials page.
