| Sr.No. |
Grade |
Filler Content by Weight % |
Standard Series |
Properties |
Applications |
| 1 |
Virgin PTFE |
|
Yes |
- Hygienic
- Excellent chemical resistance
- Outstanding electrical properties
- Excellent flexural properties
|
Gaskets, bellows, food / contact & medicine / human consumption applications. |
| 2 |
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. |
| 3 |
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 |
| 4 |
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. |
| 5 |
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. |
| 6 |
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. |
| 7 |
Aluminium Oxide filled PTFE |
5- 10 |
No |
- Excellent electrical properties
- Excellent compressive strength
- Excellent wear resistance improved under load & permanent deformation
|
Electrical insulators in circuit breaker |
| 8 |
Calcium Fluoride filled PTFE |
5-10
|
No |
- Excellent chemical resistance
- Improved wear resistance under load & permanent deformation
- Excellent compressive strength
- Good with chemicals that attack glass
|
Mechanical seal parts. |
| 9 |
Stainless Steel filled PTFE |
5- 10
|
No |
- Excellent chemical resistance
- Outstanding mechanical properties
- Good wear resistance
|
High Pressure chemical handling equipments. |
| 10 |
Mica filled PTFE |
5-10 |
No |
- Excellent compressive strength
- Very low coefficient of thermal expansion
- Poor tensile properties
|
Electrical and thermal insulation pads under compressive loads. |
| 11 |
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 |
| 12 |
Pigmented PTFE |
|
No |
|
Colour coded electrical cable sheathings |
