W e l c o m e T o H i n d u s t a n N y l o n s , I N D I A

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The chemical resistance of PTFE is excellent. It is stable in most aggressive and corrosive media, exceptions being liquid or dissolved alkali metals, flourine and other extremely potent oxidisers.

The resistance of PTFE compounds to No. of Chemicals is given below. In general carbon and glass filled compounds give better performance in chemical service.

A = Excellent, B = Fair,
C = Unsatisfactory

Chemical	Filler
Chemical	Carbon / Graphite	Glass	Bronze
Acetaldehyde	A	A	A
Acetone	A	A	A
Aluminium Sulphate	A	A	B
Ammonium chloride	A	A	C
Ammonium hydroxide	A	B	C
Aniline	A	A	C
Benzene	A	A	A
Brine	A	A	A
Bromine (anhydrous)	C	B	C
Carbon Disulphide	A	A	A
Chloroacetic acid	A	A	B
Chlorobenzene	A	A	A
Chloroform	A	A	A
Chromic acid	B	B	C
Citric acid	A	A	A
Diethyl ether	A	A	A
Ethylene glycol	A	A	A
Fatty acids	A	A	A
Ferric Chloride	A	A	C
Ferric sulphate	A	A	C
Fluorosilicic acid	B	C	C
Formic acid	A	A	A
Freon (liquid)	A	A	A
Hydroboric acid	A	B	C
Hydrochloric acid	A	B	C
Hydrocyanic acid	A	B	C
Hydrogen sulphide (solution)	A	C	C
Lead acetate	A	A	C
Maleic acid	A	A	B
Mercury salts	A	A	C
Molasses	A	A	B
Naptha	A	A	B
Naphathalene	A	A	B
Nickel salts	a	a	a
Nitric acid	C	B	C
Nitro benzene	A	A	A
Phenol	A	B	A
Phosphoric acid	A	A	C
Picric acid	A	A	A
Pyridine	A	A	C
Salicylic acid	A	A	B
Silver nitrate	A	A	C
Sodium carbonate	A	A	A
Sodium hydroxide	A	B	A
Sodium nitrite	A	A	A
Sodium peroxide	B	A	C
Sodium silicate	a	c	a
Sodium sulphide	A	A	C
Starch	A	A	A
Sulphuric acid	B	A	C
Tallow	A	A	A
Tannic acid	A	A	A
Tartaric acid	A	A	A
Trichloroethylene	A	A	B
Zinc chloride	A	A	C

A = Excellent, B = Fair,
C = Unsatisfactory

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Vertex InfoTech, Sangli, India