The fundamental distinction between PTFE and PVDF is that whereas PTFE membranes can be used in the filtering of potent acids and aggressive solutions, PVDF membranes are better suited for non-aggressive aqueous and mild organic solutions filtration. In the majority of organic solvents, PVDF is only very sporadically soluble. PVDF is often dissolved in polar solvents such as DMF, dimethyl sulfoxide (DMSO), N-methylpyrrolidone (NMP), or dimethylacetamide (DMAc).
Polyvinylidene Fluoride (PVDF) has exceptional chemical resistance to a variety of corrosive fluids and solvents. It is particularly resistant to hydrocarbons, inorganic and organic acids, and halogenated solvents. Compared to powder coatings, PVDF coatings are more durable. Powder coatings are stronger than PVDF coatings.
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