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PETG and Sodium Chloride: Chemical Resistance

Polyethylene terephthalate glycol (co-polyester)

Rating

Concentration20 °C50 °CRemark
aqueousAA
any concentrationAA

Material comparison at 20 °C

Sodium Chloride: Material comparison at 20 °CPETG: A (highlighted); ECTFE/ETFE: A; EPDM: A; FEP: A; Viton (FPM): A; HDPE: A.ECTFE/ETFE: AEPDM: AFEP: AViton (FPM): AHDPE: ALDPE: ANBR: ANylon (PA): APolycarbonate: APETG: APETGPMP: AAcetal (POM): APP: APolystyrene: APolysulfone: APTFE: APVC Rigid: APVC Flexible: APVDF: ASAN: ASilicone: ASS 304: ASS 316: AAluminium: C
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

PETG shows excellent resistance to Sodium Chloride across all 2 tested concentrations (aqueous, any concentration) at 20 °C, making it a reliable choice for storage, transfer, and handling applications involving this chemical at any of the tested strengths. 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

Sodium Chloride is commonly encountered in chemical processing and pulp and paper. PETG (Polyethylene terephthalate glycol (co-polyester)) 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

PETG can be used with confidence for Sodium Chloride containment and handling. The A rating indicates that the material shows no significant change in weight, dimensions, or mechanical properties after prolonged contact under test conditions. This holds true at both 20 °C and 50 °C, giving a good safety margin for typical process environments.

Did you know?

The ratings shown here apply to pure Sodium Chloride in contact with the base thermoplastic. In real-world applications, additives, pigments, and fillers in the material can shift resistance in either direction.

Materials rated A or B at 20 °C

Based on the row for aqueous, 20 °C.

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

About PETG

PETG is a co-polyester for clear containers. Strong acids and alkalis and most organic 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.