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LDPE and Iodine Tincture: Chemical Resistance

Low-density polyethylene

Rating

Concentration20 °C50 °CRemark
concentration not statedAC

Materials rated A or B at 20 °C

Thermoplastics
HDPE A, PP A, Acetal (POM) A, PMP A
Fluoropolymers
PTFE A, PVDF A, ECTFE/ETFE A
Elastomers
EPDM B, Viton (FPM) A
Metals
SS 316 A, SS 304 B, Aluminium A

About LDPE

Low-density polyethylene has a similar profile to HDPE but is softer and more permeable, so solvents swell it sooner. Continuous service is usually limited to about 60 °C.

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.