Carbon-Based Wet Friction Materials for Automotive Applications
Our wet friction materials have been used in automotive applications since 1991.
SIGRAFIL® CFRP Friction Materials
CFRP wet friction materials consist of woven carbon fiber embedded in a synthetic matrix system. Thermosetting plastics are used mainly to serve as a binding constituent. Our CFRP materials show excellent performance in wet friction applications.
SIGRAFIL® C/C Friction Materials
Carbon/Carbon wet friction materials are composed of woven carbon fiber with a pyrolytic carbon binder produced by chemical vapor deposition (CVD) of hydrocarbon gas. The carbon binder holds the fibers together but is porous to allow oil flow. The woven surface provides natural oil flow channels.
Major Benefits
- High energy capability
- High abuse tolerance
- Low wear
- Stable coefficient of friction over wear life
- Noise and chatter reduction
- Fluid compatibility
Applications
- Transmission synchronizers
- Slip differentials
- Torque converters
- Viscous couplings
- Wet brakes and clutches