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PTFE and sec-Butanol (2-Butanol): Chemical Resistance

Polytetrafluoroethylene

Rating

Concentration20 °C50 °CRemark
concentration not statedAA

Materials rated A or B at 20 °C

Thermoplastics
HDPE A, PP A, PVC Rigid B, LDPE A, Nylon (PA) A, Acetal (POM) A, Polycarbonate B, Polystyrene B, Polysulfone B, PETG A, PMP A
Fluoropolymers
PVDF A, FEP A, ECTFE/ETFE A
Elastomers
Viton (FPM) A, NBR B
Metals
SS 316 A, SS 304 A, Aluminium A

About PTFE

PTFE is resistant to almost every chemical in this list. The known exceptions are molten alkali metals, elemental fluorine and some fluorinating agents at elevated temperature.

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.