| Filled with glass fiber | - Higher pressure and wear resistance and better thermal conductivity
- Good chemical resistance
- Good electrical insulation
| Resistant to organic solvents, not resistant to alkaline solutions and acids | Valve seats, seals, bearings, requested to resist sliding and chemicals. Suitable for bearings working at low pH values. |
| Filled with carbon fiber | - Very low deformation under load
- Good abrasion resistance, even in a water environment
- Better thermal conductivity and lower thermal expansion than glass fiber
- Good chemical resistance
| Carbon fiber is chemically inert | Plain bearings, sealing rings, moving parts operating under conditions of limited lubrication or without lubricants. |
| Filled with graphite | - Good lubrication effect
- Low coefficient of friction
- No static electricity
- Good thermal conductivity
- Good chemical resistance
| When used with hard metals, it has high wear resistance and is easy to oxidize | Bearings for high speed on fairly hard surface. |
| Filled with molybdenum disulfide (MoS2) | - Good sliding and wear resistance
- Combined with copper powder can achieve good oil-free dry operation
| Not resistant to corrosion when used with hot concentrated sulfuric acid | Seals and bearings with high elasticity and lowest friction coefficient. Guide bands. Details needing good resistivity. |
| Filled with bronze | - Reduce deformation under load
- Good thermal conductivity
- Good conductivity
- Poor chemical resistance
| May be corroded by acid and water | Unlubricated bearings for high speed on moderately hard surface. |
