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Zinc Chloride Chemical Resistance

Resistance ratings for 24 plastics, elastomers and metals at 20 °C and 50 °C. Listed at 2 concentrations, because the rating depends on it.

At a glance

Based on the row for 10 %, 20 °C.

Rated A, very good resistance
PTFE, HDPE, PP, PVDF, PVC Rigid, EPDM, Viton (FPM), NBR, SS 316, SS 304, LDPE, FEP, ECTFE/ETFE, Polycarbonate, PVC Flexible, Polystyrene, PMP, SAN (18)
Rated B, good resistance
Acetal (POM) (1)
Rated C, limited resistance
Aluminium, Nylon (PA) (2)
Rated D, not resistant
none (0)
No data in the source
Silicone, Polysulfone, PETG
Rated lower at 50 °C than at 20 °C
PVC Rigid (A → C), SS 316 (A → C), SS 304 (A → D), Aluminium (C → D), Nylon (PA) (C → D), Polystyrene (A → C)
Risk of pitting or stress-corrosion cracking
SS 316, SS 304
Rating changes with concentration (20 °C)
Polycarbonate: A (10 %), B (aqueous)

Based on the row for 10 %, 20 °C.

Rating profile by material family

Zinc Chloride: Rating profile by material familyThermoplastics: 9 A, 1 B, 1 C, 2 no data. Fluoropolymers: 4 A. Elastomers: 3 A, 1 no data. Metals: 2 A, 1 C.Thermoplastics (13)Thermoplastics: 9 × A, very good resistance (HDPE, LDPE, PP, PVC Rigid, PVC Flexible, PMP, Polystyrene, SAN, Polycarbonate)A 9Thermoplastics: 1 × B, good resistance (Acetal (POM))Thermoplastics: 1 × C, limited resistance (Nylon (PA))Thermoplastics: 2 × no data (PETG, Polysulfone)– 2Fluoropolymers (4)Fluoropolymers: 4 × A, very good resistance (PTFE, FEP, PVDF, ECTFE/ETFE)A 4Elastomers (4)Elastomers: 3 × A, very good resistance (EPDM, Viton (FPM), NBR)A 3Elastomers: 1 × no data (Silicone)– 1Metals (3)Metals: 2 × A, very good resistance (SS 316, SS 304)A 2Metals: 1 × C, limited resistance (Aluminium)C 1
A very good resistanceB good resistanceC limited resistanceD not resistantno data
Number of materials in each family with each rating at 20 °C.

Effect of temperature, 20 °C to 50 °C

Zinc Chloride: Effect of temperature, 20 °C to 50 °CPVC Rigid A → C; Polystyrene A → C; Nylon (PA) C → D; SS 316 A → C; SS 304 A → D; Aluminium C → D.ABCDPVC Rigid: A at 20 °C, C at 50 °CPVC RigidPolystyrene: A at 20 °C, C at 50 °CPolystyreneNylon (PA): C at 20 °C, D at 50 °CNylon (PA)SS 316: A at 20 °C, C at 50 °CSS 316SS 304: A at 20 °C, D at 50 °CSS 304Aluminium: C at 20 °C, D at 50 °CAluminium
20 °C50 °C
Materials whose rating differs between 20 °C and 50 °C. Materials not shown keep their rating or have no 50 °C value.

Substance

CAS number
7646-85-7
Formula
ZnCl2
Hazard symbols in the source
C (corrosive), Xn (harmful) (pre-GHS European symbols; check the current safety data sheet)
Concentrations listed
10 %; aqueous
Name in the source (German)
Zinkchlorid

Rating by concentration

Zinc Chloride: Rating by concentrationHDPE: 10 % A, aqueous A. LDPE: 10 % A, aqueous A. PP: 10 % A, aqueous A. PVC Rigid: 10 % A→C, aqueous –. PVC Flexible: 10 % A, aqueous –. PMP: 10 % A, aqueous –. Polystyrene: 10 % A→C, aqueous –. SAN: 10 % A, aqueous –. Polycarbonate: 10 % A, aqueous B*. Acetal (POM): 10 % B, aqueous B. Nylon (PA): 10 % C→D, aqueous C→D. PTFE: 10 % A, aqueous A. FEP: 10 % A, aqueous A. PVDF: 10 % A, aqueous A. ECTFE/ETFE: 10 % A, aqueous –. EPDM: 10 % A, aqueous A. Viton (FPM): 10 % A, aqueous A. NBR: 10 % A, aqueous A. SS 316: 10 % A→C, aqueous A→C. SS 304: 10 % A→D, aqueous A→D. Aluminium: 10 % C→D, aqueous C→D.10 %aqueousTHERMOPLASTICSHDPEHDPE, 10 %: A at 20 °C, A at 50 °CAHDPE, aqueous: A at 20 °C, A at 50 °CALDPELDPE, 10 %: A at 20 °C, A at 50 °CALDPE, aqueous: A at 20 °C, A at 50 °CAPPPP, 10 %: A at 20 °C, A at 50 °CAPP, aqueous: A at 20 °C, A at 50 °CAPVC RigidPVC Rigid, 10 %: A at 20 °C, C at 50 °CA→CPVC Rigid, aqueous: no data–PVC FlexiblePVC Flexible, 10 %: A at 20 °CAPVC Flexible, aqueous: no data–PMPPMP, 10 %: A at 20 °C, A at 50 °CAPMP, aqueous: no data–PolystyrenePolystyrene, 10 %: A at 20 °C, C at 50 °CA→CPolystyrene, aqueous: no data–SANSAN, 10 %: A at 20 °C, A at 50 °CASAN, aqueous: no data–PolycarbonatePolycarbonate, 10 %: A at 20 °CAPolycarbonate, aqueous: B at 20 °C (estimate)B*Acetal (POM)Acetal (POM), 10 %: B at 20 °CBAcetal (POM), aqueous: B at 20 °CBNylon (PA)Nylon (PA), 10 %: C at 20 °C, D at 50 °CC→DNylon (PA), aqueous: C at 20 °C, D at 50 °CC→DFLUOROPOLYMERSPTFEPTFE, 10 %: A at 20 °C, A at 50 °CAPTFE, aqueous: A at 20 °C, A at 50 °CAFEPFEP, 10 %: A at 20 °C, A at 50 °CAFEP, aqueous: A at 20 °C, A at 50 °CAPVDFPVDF, 10 %: A at 20 °C, A at 50 °CAPVDF, aqueous: A at 20 °C, A at 50 °CAECTFE/ETFEECTFE/ETFE, 10 %: A at 20 °C, A at 50 °CAECTFE/ETFE, aqueous: no data–ELASTOMERSEPDMEPDM, 10 %: A at 20 °CAEPDM, aqueous: A at 20 °CAViton (FPM)Viton (FPM), 10 %: A at 20 °C, A at 50 °CAViton (FPM), aqueous: A at 20 °C, A at 50 °CANBRNBR, 10 %: A at 20 °C, A at 50 °CANBR, aqueous: A at 20 °C, A at 50 °CAMETALSSS 316SS 316, 10 %: A at 20 °C, C at 50 °CA→CSS 316, aqueous: A at 20 °C, C at 50 °CA→CSS 304SS 304, 10 %: A at 20 °C, D at 50 °CA→DSS 304, aqueous: A at 20 °C, D at 50 °CA→DAluminiumAluminium, 10 %: C at 20 °C, D at 50 °CC→DAluminium, aqueous: C at 20 °C, D at 50 °CC→D
A very good resistanceB good resistanceC limited resistanceD not resistantno data
Each cell shows the rating at 20 °C. Where the rating at 50 °C differs, it follows the arrow. * marks an estimate in the source.
Show as a table
Material10 %aqueous
Thermoplastics
HDPEAA
LDPEAA
PPAA
PVC RigidA–
PVC FlexibleA–
PMPA–
PolystyreneA–
SANA–
PolycarbonateAB*
PETG––
Acetal (POM)BB
Nylon (PA)CC
Polysulfone––
Fluoropolymers
PTFEAA
FEPAA
PVDFAA
ECTFE/ETFEA–
Elastomers
EPDMAA
Viton (FPM)AA
NBRAA
Silicone––
Metals
SS 316AA
SS 304AA
AluminiumCC

* estimated rating, given in the source without a temperature

Resistance table: Zinc Chloride, 10 %

Material20 °C50 °CRemark
Thermoplastics
HDPEAA
LDPEAA
PPAA
PVC RigidAC
PVC FlexibleA–
PMPAA
PolystyreneAC
SANAA
PolycarbonateA–
Acetal (POM)B–
Nylon (PA)CD
Fluoropolymers
PTFEAA
FEPAA
PVDFAA
ECTFE/ETFEAA
Elastomers
EPDMA–
Viton (FPM)AA
NBRAA
Metals
SS 316ACpitting risk
SS 304ADpitting risk
AluminiumCD

Not rated in the source, so not in the table: PETG, Polysulfone, Silicone

Resistance table: Zinc Chloride, aqueous

Material20 °C50 °CRemark
Thermoplastics
HDPEAA
LDPEAA
PPAA
PolycarbonateB*–
Acetal (POM)B–
Nylon (PA)CD
Fluoropolymers
PTFEAA
FEPAA
PVDFAA
Elastomers
EPDMA–
Viton (FPM)AA
NBRAA
Metals
SS 316ACpitting risk
SS 304ADpitting risk
AluminiumCD

* estimated rating, given in the source without a temperature

Not rated in the source, so not in the table: PVC Rigid, PVC Flexible, PMP, Polystyrene, SAN, PETG, Polysulfone, ECTFE/ETFE, Silicone

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.

Frequently Asked Questions

Which materials resist Zinc Chloride at high concentrations?

The materials with an A rating (resistant) for Zinc Chloride at 20 °C are: PTFE, HDPE, PP, PVDF, PVC Rigid, EPDM, Viton (FPM), NBR. These can generally be used in direct contact.

Does temperature affect chemical resistance to Zinc Chloride?

Yes. 6 of 17 tested materials show a worse rating at 50 °C than at 20 °C for Zinc Chloride. Materials affected include: PVC Rigid, SS 316, SS 304, Aluminium, Nylon (PA), Polystyrene.

Is PTFE safe for Zinc Chloride?

PTFE is rated A for Zinc Chloride at 20 °C. A rating of A means resistant, B means limited resistance, C means partly resistant, and D means not resistant.

Does concentration affect chemical resistance to Zinc Chloride?

Yes. Zinc Chloride is tested at 2 concentrations (10 %, aqueous). Some materials change their rating depending on the concentration.

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.

Chemicals with a similar resistance profile

Same 20 °C rating on the share of materials shown.

Zinc Sulfate 100 %Ammonium Chloride 95 %Lithium Bromide 92 %Barium Chloride 90 %Boric Acid 90 %Calcium Chloride 90 %