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LDPE and Phenol: Chemical Resistance

Low-density polyethylene

Rating

Concentration20 °C50 °CRemark
10 %AA
100 %CC

Material comparison at 20 °C

Phenol: Material comparison at 20 °CLDPE: C (highlighted); Aluminium: A; ECTFE/ETFE: A; FEP: A; PMP: A; PP: A.Aluminium: AECTFE/ETFE: AFEP: APMP: APP: APTFE: APVDF: ASS 304: ASS 316: AHDPE: BViton (FPM): CLDPE: CLDPEPolysulfone: CPVC Flexible: CEPDM: DNBR: DNylon (PA): DPolycarbonate: DPETG: DAcetal (POM): DPolystyrene: DPVC Rigid: DSAN: DSilicone: –
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

The resistance of LDPE to Phenol is concentration-dependent. Across the 2 tested concentrations (10 %, 100 %), the 20 °C rating ranges from A at lower concentrations to C at higher ones. This means engineers must verify which concentration their process actually involves before relying on a single rating. The rating remains stable between 20 °C and 50 °C, which means this material can also handle moderately elevated process temperatures without additional risk.

Application context

Phenol is commonly encountered in cleaning and cosmetics production. LDPE (Low-density polyethylene) is a thermoplastic typically used for tanks, piping, containers and liners. The compatibility between these two is therefore an important consideration for engineers and procurement teams selecting containment, transfer, or processing equipment.

Practical recommendation

LDPE has limited resistance to Phenol and should only be used for short-term or intermittent contact at ambient temperature. The C rating means the material undergoes noticeable changes — swelling, loss of strength, or surface degradation — that make it unsuitable for permanent installations. For prolonged or continuous exposure, PMP, PP, ECTFE/ETFE offer significantly better resistance and are rated A.

Did you know?

Low-density polyethylene is commonly chosen for tanks, piping, containers and liners because of its combination of chemical resistance, mechanical strength, and cost-effectiveness.

Materials rated A or B at 20 °C

Based on the row for 100 %, 20 °C.

Thermoplastics
HDPE B, PP A, PMP A
Fluoropolymers
PTFE A, PVDF A, FEP A, ECTFE/ETFE A
Metals
SS 316 A, SS 304 A, 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.