Grade | Filler Content by Weight % | Standard Series | Properties | Applications |
Virgin PTFE | - | Yes | - Hygienic
- Excellent chemical resistance
- Outstanding electrical properties
- Excellent flexural properties
| Gaskets, Bellows, food / contact & medicine / human consumption applications. |
Chemically Modified PTFE | - | Yes | - Less Creep.
- Improved Permeation Resistance
- Smoother Surfaces
- Less Porous
- Better High Voltage Insulation
- New Fabricating Versatility with welding
| Pumps, Diaphragms, Ball Valve Seats, Components of Mechanical Seals, Dipped Pipes for reaction vessels, Vessel Lining |
Pigmented PTFE | - | No | Improved Visibility | Colour coded electrical cable sheathings |
Glass filled PTFE | 15 - 25 | Yes | - High compressive strength
- Excellent chemical resistance
- Improved wear resistance under load & permanent deformation
| Ball valve component, bridge bearing pads, ship launching pads,pipe supporting pads. |
Carbon/Coke filled PTFE (soft amorphous/ hard fiber) | 25 - 35 | Yes | - High compressive strength
- Improved wear resistance under load & permanent deformation
- Better thermal / electrical conductivity.
| Rider and piston rings of air compressor |
Graphite filled PTFE (pure crystalline carbon) | 15 | Yes | - High compressive strength
- Improved wear resistance under load & permanent deformation
- Better thermal / electrical conductivity.
- Good chemical resistance
- Improved frictional properties.
| Used as shaft bearings and in chemical high speed Chemical pumps. |
Carbon + Graphite + Glass Filled PTFE | 12 + 3 + 10 | Yes | - High compressive strength
- Improved wear resistance under load & permanent deformation
- Better thermal / electrical conductivity
| Valve component |
Bronze filled PTFE(oxidising / Non oxidising) | 40 - 60 | Yes | - High compressive strength
- Excellent wear resistance improved under load & permanent deformation
- Better thermal / electrical conductivity.
- Good chemical resistance Very low cold flow.
| Wear Strips Machine tool liners, hydraulic seals. |
Bronze plus, Molybdenum Disulphide filled PTFE | 55 + 5 | Yes | - Improved fictional properties
- High compressive strength
- Excellent wear resistance improved under load & permanent deformation
- Good thermal / electrical conductivity.
- Very low cold flow.
| Hydraulic seals. |
Aluminium Oxide filled PTFE | 07/15/13 | No | - Excellentelectrical properties
- Excellent compressive strength
- Excellent1 wear resistance improved under load & permanent deformation
| Electrical insulators in circuit breaker |
Calcium Fluoride filled PTFE | 05/10/13 | No | - Excellent chemical resistance
- Improved wear resistance under load & permanent deformation
- Excellent compressive strength
- Good with chemicals that attack glass
| Mechanical seal parts. |
Stainless Steel filled PTFE | 05/10/13 | No | - Excellent chemical resistance
- Outstanding mechanical properties
- Good wear resistance
| High Pressure chemical handling equipments. |
Mica filled PTFE | 05/10/13 | No | - Excellent compressive strength
- Very low coefficient of thermal expansion
- Poor tensile properties
| Electrical and thermal insulation pads under compressive loads. |
Glass + MoS2 filled PTFE | 15 + 5 | Yes | - High compressive strength
- Excellent chemical resistance
- Improved wear resistance under load & permanent deformation
- Improved frictional properties
| Low torque valve components |
PEEK Filled PTFE | 15 | Yes | - High compressive strength
- Excellent chemical resistance
- Outstanding mechanical properties at elevated temp.
- Good wear resistance
| Chemical Equipment parts requiring good mechanical properties at elevated Temperature |
MoS2 Filled PTFE | 0.1 - 0.2 | No | - Self-lubrication in presence of apolar gas
- Low friction coeff.
- Retained high dielectric performance even in presence of improved thermal and electrical conductivity due to the filler
- Good dimensional stability and not fragile like ceramic
- Service temperature range from -272 up to +260°C
| Electrical insulators in circuit breaker |
Borum Nitrite Filled PTFE | 10 | No | - Self-lubrication in presence of apolar gas
- Low friction coeff.
- Retained high dielectric performance even in presence of improved thermal and electrical conductivity due to the filler
- Excellent compressive strength
- Service temperature range from -272 up to +260°C
| Electrical insulators |
Cobalt Aluminate Filled PTFE | 0.3 | No | - Self-lubrication in presence of apolar gas
- Low friction coeff.
- Retained high dielectric performance even in presence of improved thermal and electrical conductivity due to the filler
- Very high compressive strength
- Service temperature range from -272 up to +260°C
| Electrical insulators |