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Chemical Resistance

Chemical Resistance


Within normal use temperatures, fluoroplastics are attacked by so few chemicals that it is easier to describe the exceptions rather than list the chemicals they are compatible with. Fluoroplastics should not be used with the following:
  1. Alkali metals such as elemental sodium, potassium, lithium, etc. The alkali metals remove fluorine from the polymer molecule.
  2. Extremely potent oxidizers, fluorine (F2) and related compounds (e.g., chlorine trifluoride, CIF3). These can be handled, but only with great care, as fluorine is absorbed into the resins, and the mixture becomes sensitive to a source of ignition such as impact.
  3. 80% NaOH (Sodium Hydroxide) or KOH (Potassium Hydroxide), metal hydrides such as borances (e.g., B2H6), aluminum chloride, ammonia (NH3), certain amines (R-NH2) and imines (R=NH) and 70% nitric acid at temperatures near the suggested service limit.
Chemical Resistance Chart A-F
Chemical Resistance Chart G-Z
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