
Short answer
MoS₂-filled cast nylon is a black PA6G grade made with molybdenum disulphide. MoS₂ acts like a solid lubricant: it improves sliding, increases wear resistance and makes the crystal structure more uniform. It is preferred for slides, bearings, rings and gears that slide and rotate.
What does MoS₂ do?
Molybdenum disulphide is a solid lubricant whose layered structure gives low friction. Added to cast nylon, it makes the surface slide more easily and reduces wear. The black colour is a natural result of the additive.
How it differs from oil-filled cast nylon
Oil-filled cast nylon works with liquid oil, MoS₂-filled cast nylon with a solid lubricant. The oil-filled grade stands out at high speed, while the MoS₂ grade is preferred for sliding applications with high surface pressure. Compare them in oil-filled cast nylon and cast nylon grades.
Applications
- Slide pads and guide strips.
- Rings, collars and flanges.
- Gears and sprockets.
- Plain bearings.
We CNC-machine rings, slide pads and gears from MoS₂-filled material. Send us your drawing.
Frequently asked questions
Is MoS₂-filled cast nylon UV resistant?
The black colour protects better against UV outdoors than natural colour, which is an advantage for parts that stay outside for long periods.
Does mechanical strength drop?
No; the basic mechanical values are close to standard PA6G. The gain is in sliding and wear.


