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Selection Guide of PTFE & Filled PTFE

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Selection Guide of PTFE & Filled PTFE

PTFE is available in virgin & filled compounds to improve the basic characteristics to match very diverse applications & optimization for specific end users. The grade of PTFE is selected from Virgin & Filled PTFE grades of PTFE, based on required property for required service conditions / applications. The selection guide elaborates various grades of PTFE & Filled PTFE, filler content in PTFE, basic properties & relevant service conditions / End user applications.


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

There are many popular filled grades PTFE Products brand named as Trexonn, Turcite B, Rulon AR, Rulon AJ Gold having specific properties, designed for specific service and applications.

- Hindustan Nylons manufactures similar grades of PTFE Products branded as Trexonn, Turcite B, Rulon AR, Rulon AJ Gold.
- Nonstandard Series can be made available on request subject to minimum quantity