|
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
|
