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ECTFE/ETFE and Ammonium Sulfate: Chemical Resistance

Ethylene chlorotrifluoroethylene / ethylene tetrafluoroethylene

Rating

Concentration20 °C50 °CRemark
10 %AA
saturatedAA

Material comparison at 20 °C

Ammonium Sulfate: Material comparison at 20 °CECTFE/ETFE: A (highlighted); Aluminium: A; EPDM: A; FEP: A; HDPE: A; LDPE: A.Aluminium: AECTFE/ETFE: AECTFEEPDM: AFEP: AHDPE: ALDPE: ANBR: ANylon (PA): APolycarbonate: APMP: AAcetal (POM): APP: APolystyrene: APolysulfone: APTFE: APVC Rigid: APVDF: ASS 304: ASS 316: AViton (FPM): BPETG: BPVC Flexible: –SAN: –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

ECTFE/ETFE shows excellent resistance to Ammonium Sulfate across all 2 tested concentrations (10 %, saturated) 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

Ammonium Sulfate is commonly encountered in de-icing and electroplating. ECTFE/ETFE (Ethylene chlorotrifluoroethylene / ethylene tetrafluoroethylene) is a fluoropolymer typically used for seals, gaskets, valve seats and lined equipment. The compatibility between these two is therefore an important consideration for engineers and procurement teams selecting containment, transfer, or processing equipment.

Practical recommendation

ECTFE/ETFE can be used with confidence for Ammonium Sulfate 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?

When choosing between fluoropolymers for Ammonium Sulfate 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

Based on the row for 10 %, 20 °C.

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

About ECTFE/ETFE

ECTFE and ETFE are tough fluoropolymers with broad resistance. Hot amines and some chlorinated solvents at elevated temperature are their main limits.

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.