Selection Guide of PTFE, PTFE Products, India

Selection Guide of 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.

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	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
3	Pigmented PTFE	-	No	Improved Visibility	Colour coded electrical cable sheathings
4	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
5	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
6	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
7	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
8	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
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	Hydraulic seals
10	Aluminium Oxide filled PTFE	7 - 15	No	Excellentelectrical properties Excellent compressive strength Excellent1 wear resistance improved under load & permanent deformation	Electrical insulators in circuit breaker
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	Mechanical seal parts
12	Stainless Steel filled PTFE	5 - 10	No	Excellent chemical resistance Outstanding mechanical properties Good wear resistance	High Pressure chemical handling equipments
13	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
14	Glass + MoS₂ filled PTFE	5 + 10	Yes	Excellent chemical resistance Improved wear resistance under load & permanent deformation Excellent compressive strength Improved frictional properties	Low torque valve components
15	PEEK Filled PTFE	15	Yes	Excellent compressive strength Excellent chemical resistance Outstanding mechanical properties at elevated temp. Good wear resistance	Chemical Equipment parts requiring good mechanical properties at elevated Temperature
16	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℃	Electrical insulators in circuit breaker
17	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℃	Electrical insulators
18	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℃	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