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Polysulfone and Fluorine: Chemical Resistance

Polysulfone

Rating

Concentration20 °C50 °CRemark
concentration not statedDD

Material comparison at 20 °C

Fluorine: Material comparison at 20 °CPolysulfone: D (highlighted); ECTFE/ETFE: A; FEP: A; PTFE: A; PVC Rigid: A; Viton (FPM): C.ECTFE/ETFE: AFEP: APTFE: APVC Rigid: AViton (FPM): CPMP: CAluminium: DEPDM: DHDPE: DLDPE: DNBR: DNylon (PA): DPolycarbonate: DPETG: DAcetal (POM): DPP: DPolystyrene: DPolysulfone: DPSUPVDF: DSAN: DSS 304: DSS 316: DPVC Flexible: –Silicone: –
A very good resistanceB good resistanceC limited resistanceD not resistantno data
Each bar is one material. Taller bars indicate better resistance. The highlighted bar is the current material.

Resistance overview

Polysulfone is not resistant (D) to Fluorine and should not be used in direct contact. The chemical is expected to cause rapid degradation, which can include dissolution, cracking, severe swelling, or complete structural failure of the material.

Application context

Fluorine is commonly encountered in surface cleaning and chemical processing. Polysulfone (Polysulfone) is a thermoplastic typically used for tanks, piping, containers and liners. Because Fluorine is classified as corrosive, the choice of containment material is especially critical to prevent leaks, equipment damage, and safety hazards.

Practical recommendation

Polysulfone is not recommended for use with Fluorine. The D rating indicates that the material will suffer rapid and severe degradation, which may include cracking, dissolution, severe swelling, or complete structural failure. Using this combination risks equipment damage, leaks, and potential safety incidents. Consider using PVC Rigid, ECTFE/ETFE, FEP instead, which are rated A for this chemical and offer reliable long-term performance.

Did you know?

In industrial practice, Polysulfone components exposed to Fluorine are typically inspected for swelling, discoloration, or loss of mechanical strength as early indicators of chemical attack.

Materials rated A or B at 20 °C

Thermoplastics
PVC Rigid A
Fluoropolymers
PTFE A, FEP A, ECTFE/ETFE A

About Polysulfone

Polysulfone withstands hot water and steam. Ketones, esters and chlorinated and aromatic solvents attack it.

Rating scale

A rating marked * is an estimate in the source, not a test result. An estimate is given as one value without a temperature.

About this data

The ratings come from the chemical resistance list published by Bürkle GmbH, which compiled them from raw-material manufacturers’ data. They describe laboratory tests on the raw material at 20 °C and 50 °C.

A finished part also sees pressure, mechanical stress, welds and mixtures that a laboratory test does not. Treat the rating as a first filter and test under your own conditions before relying on it.