Sr.No.

Grade

Filler Content by Weight %

Standard Series

Properties

1

Virgin PTFE

-

Yes

·   Hygienic

·   Excellent chemical resistance

·   Outstanding electrical properties

·   Excellent flexural properties

2

Glass filled PTFE

15 - 25

Yes

·   High compressive strength

·   Excellent chemical resistance

·   Improved wear resistance under load & permanent deformation

3

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.

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.

5

Stainless Steel filled PTFE

5 - 10

No

·   Excellent chemical resistance

·   Outstanding mechanical properties

·   Good wear resistance

6

Chemically Modified PTFE

-

Yes

·   Less Creep.

·   Improved Permeation Resistance

·   Smoother Surfaces

·   Less Porous

·   Better High Voltage Insulation

·   New Fabricating Versatility with welding

7

Carbon / Coke filled PTFE (soft amorphous carbon hard fiber)

25 - 35

Yes

·   High compressive strength

·   Improved wear resistance under load & permanent deformation

·   Better thermal / electrical conductivity.

8

Carbon + Graphite + Glass Filled

12 + 3 + 10

Yes

·   High compressive strength

·   Improved wear resistance under load & permanent deformation

·   Better thermal / electrical conductivity

9

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.

10

Aluminum Oxide filled PTFE

5 - 10

No

·   Excellent electrical properties

·   Excellent compressive strength

·   Excellent wear resistance improved under load & permanent deformation

11

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

12

Mica filled PTFE

5 - 10

No

·   Excellent compressive strength

·   Very low coefficient of thermal expansion

·   Poor tensile properties

13

Glass + MoS₂ filled PTFE

15 + 5

Yes

·   High compressive strength

·   Excellent chemical resistance

·   Improved wear resistance under load & permanent deformation

·   Improved frictional properties

14

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

15

Peek Filled PTFE

15

Yes

·   High compressive strength

·   Excellent chemical resistance

·   Outstanding mechanical properties at elevated temp.

·   Good wear resistance

16

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

17

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