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Chemical Compatibility – Fluoropolymer Liners

Entegris offers two fluoropolymer liners within the NOWPak^® liner-based bottle and canister system. The T650 liner is a single-layer PTFE film welded to an injection molded natural virgin PFA fitment. The T420 liner is a two-ply PTFE film welded to an injection molded natural virgin PFA fitment. Fluoropolymers such as PTFE and PFA are excellent options when more aggressive chemicals are required for your application.

These fluoropolymer materials offer superior levels of chemical compatibility versus other commonly used fluid handling polymers. This chemical compatibility list demonstrates a selection of these aggressive chemistries. It is a compilation from many sources and is intended to be a general guideline for materials selection and is not all-inclusive. For other chemicals not listed, contact Entegris for chemical compatibility support.

	Compatibility
Chemical	PTFE	PFA
Acetic acid (glacial)	Excellent	Excellent
Acetic anhydride	Excellent	Excellent
Acetone	Excellent	Excellent
Acetonitrile	Excellent	Excellent
Ammonium hydroxide	Excellent	Excellent
Aniline	Excellent	Excellent
Carbon tetracholoride	Excellent	Excellent
Chloroform	Excellent	Excellent
Dichloromethane	Excellent	Excellent
Diethylamine	Excellent	Excellent
Dimethyl sulfoxide	Excellent	Excellent
Dioxane	Excellent	Excellent
Ethanol	Excellent	Excellent
Ethyl acetate	Excellent	Excellent
Ethyl alcohol	Excellent	Excellent
Ethylene oxide	Excellent	Excellent
Glycine - HCl	Excellent	Excellent
Guanidine - HCl	Excellent	Excellent
Hexane	Excellent	Excellent
Hydrochloric acid	Excellent	Excellent

	Compatibility
Chemical	PTFE	PFA
Hydrofluoric acid	Excellent	Excellent
Hydrogen peroxide	Excellent	Excellent
Isopropyl alcohol	Excellent	Excellent
Methanol	Excellent	Excellent
Methyl ethyl ketone	Excellent	Excellent
n-hexane	Excellent	Excellent
Nitric acid	Excellent	Excellent
Phenol	Excellent	Excellent
Phosphate-buffered saline	Excellent	Excellent
Phosphoric acid	Excellent	Excellent
Polysorbate	Excellent	Excellent
Potassium carbonate	Excellent	Excellent
Sodium chloride	Excellent	Excellent
Sodium hydroxide	Excellent	Excellent
Sodium phosphate	Excellent	Excellent
Sulfuric acid	Excellent	Excellent
Tetrahydrofuran	Excellent	Excellent
Toluene	Excellent	Excellent
Tris HCl	Excellent	Excellent
Xylene	Excellent	Excellent