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PMP and Carbon Disulfide: Chemical Resistance

Polymethylpentene (TPX)

Rating

Concentration20 °C50 °CRemark
concentration not statedDD

Material comparison at 20 °C

Carbon Disulfide: Material comparison at 20 °CPMP: D (highlighted); Aluminium: A; ECTFE/ETFE: A; FEP: A; Viton (FPM): A; PTFE: A.Aluminium: AECTFE/ETFE: AFEP: AViton (FPM): APTFE: APVDF: ASS 304: ASS 316: AAcetal (POM): BNylon (PA): CEPDM: DHDPE: DLDPE: DNBR: DPolycarbonate: DPMP: DPMPPP: DPolystyrene: DPolysulfone: DPVC Rigid: DPVC Flexible: DSAN: DPETG: –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

PMP is not resistant (D) to Carbon Disulfide 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

Carbon Disulfide is commonly encountered in coatings and paints and electronics cleaning. PMP (Polymethylpentene (TPX)) is a thermoplastic typically used for tanks, piping, containers and liners. Since Carbon Disulfide is flammable, material selection must also consider the risk of static charge buildup and the need for proper grounding in storage and transfer systems.

Practical recommendation

PMP is not recommended for use with Carbon Disulfide. 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 ECTFE/ETFE, FEP, PTFE instead, which are rated A for this chemical and offer reliable long-term performance.

Did you know?

When choosing between thermoplastics for Carbon Disulfide service, engineers consider not just the resistance rating but also factors such as permeation rate, creep resistance, and weldability.

Materials rated A or B at 20 °C

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

About PMP

Polymethylpentene (TPX) is a transparent polyolefin used for labware. It resists many acids and alkalis, while aromatic and chlorinated solvents and strong oxidisers 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.