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PETG vs PVDF: Chemical Resistance Compared

Of 612 source rows rated for both materials at 20 °C, 340 (56 %) have the same rating. PETG is rated better in 29 rows and PVDF in 243. A row is one chemical at one concentration.

Summary

PETG is rated better with
Vegetable and animal oils, fats, essential oils (+12 points)
PVDF is rated better with
Mineral acids (+67 points); Oxidising agents and halogens (+58 points); Ketones and aldehydes (+41 points); Halogenated hydrocarbons (+40 points); Organic acids (+24 points); Alkalis (+19 points)
Within 10 points of each other
Salts and salt solutions; Alcohols and glycols; Esters and ethers; Amines and nitrogen compounds; Fuels, mineral oils and aliphatic hydrocarbons; Foods and beverages

Points are the difference in the share of rows rated A or B.

The two materials

PETG

Polyethylene terephthalate glycol (co-polyester)

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

Rated rows: 619. A 55 %, B 23 %, C 4 %, D 18 %

All chemicals for PETG

PVDF

Polyvinylidene fluoride

PVDF resists acids, halogens and hydrocarbons. Strong bases, amines, ketones and esters attack it. Service temperature is up to about 150 °C.

Rated rows: 944. A 73 %, B 15 %, C 10 %, D 2 %

All chemicals for PVDF

Share of rows rated A or B, by chemical class

PETG, PVDF: Share of rows rated A or B, by chemical classMineral acids: PETG 20 %, PVDF 87 %. Organic acids: PETG 70 %, PVDF 94 %. Alkalis: PETG 45 %, PVDF 64 %. Salts and salt solutions: PETG 100 %, PVDF 99 %. Oxidising agents and halogens: PETG 29 %, PVDF 87 %. Alcohols and glycols: PETG 100 %, PVDF 98 %. Ketones and aldehydes: PETG 21 %, PVDF 62 %. Esters and ethers: PETG 57 %, PVDF 64 %. Amines and nitrogen compounds: PETG 78 %, PVDF 76 %. Fuels, mineral oils and aliphatic hydrocarbons: PETG 98 %, PVDF 97 %. Vegetable and animal oils, fats, essential oils: PETG 100 %, PVDF 88 %. Halogenated hydrocarbons: PETG 32 %, PVDF 72 %. Foods and beverages: PETG 100 %, PVDF 98 %.Mineral acidsMineral acids, PETG: 20 % (41)20 %Mineral acids, PVDF: 87 % (61)87 %Organic acidsOrganic acids, PETG: 70 % (33)70 %Organic acids, PVDF: 94 % (64)94 %AlkalisAlkalis, PETG: 45 % (20)45 %Alkalis, PVDF: 64 % (22)64 %Salts and salt solutionsSalts and salt solutions, PETG: 100 % (159)100 %Salts and salt solutions, PVDF: 99 % (198)99 %Oxidising agents and halogensOxidising agents and halogens, PETG: 29 % (38)29 %Oxidising agents and halogens, PVDF: 87 % (62)87 %Alcohols and glycolsAlcohols and glycols, PETG: 100 % (40)100 %Alcohols and glycols, PVDF: 98 % (58)98 %Ketones and aldehydesKetones and aldehydes, PETG: 21 % (24)21 %Ketones and aldehydes, PVDF: 62 % (34)62 %Esters and ethersEsters and ethers, PETG: 57 % (28)57 %Esters and ethers, PVDF: 64 % (66)64 %Amines and nitrogen compoundsAmines and nitrogen compounds, PETG: 78 % (9)78 %Amines and nitrogen compounds, PVDF: 76 % (38)76 %Fuels, mineral oils and aliphatic hydrocarbonsFuels, mineral oils and aliphatic hydrocarbons, PETG: 98 % (65)98 %Fuels, mineral oils and aliphatic hydrocarbons, PVDF: 97 % (72)97 %Vegetable and animal oils, fats, essential oilsVegetable and animal oils, fats, essential oils, PETG: 100 % (34)100 %Vegetable and animal oils, fats, essential oils, PVDF: 88 % (48)88 %Halogenated hydrocarbonsHalogenated hydrocarbons, PETG: 32 % (25)32 %Halogenated hydrocarbons, PVDF: 72 % (54)72 %Foods and beveragesFoods and beverages, PETG: 100 % (43)100 %Foods and beverages, PVDF: 98 % (46)98 %
PETGPVDF
Rating at 20 °C. Only classes with at least 8 rated rows for both materials are shown.

How often the two ratings agree

PETG, PVDF: How often the two ratings agreePETG A, PVDF A: 311; PETG A, PVDF B: 17; PETG A, PVDF C: 9; PETG A, PVDF D: 1; PETG B, PVDF A: 128; PETG B, PVDF B: 10; PETG B, PVDF C: 1; PETG C, PVDF A: 19; PETG C, PVDF B: 1; PETG C, PVDF C: 3; PETG C, PVDF D: 1; PETG D, PVDF A: 59; PETG D, PVDF B: 16; PETG D, PVDF C: 20; PETG D, PVDF D: 16.PVDFABCDPETGAPETG A, PVDF A: 311311PETG A, PVDF B: 1717PETG A, PVDF C: 99PETG A, PVDF D: 11BPETG B, PVDF A: 128128PETG B, PVDF B: 1010PETG B, PVDF C: 11PETG B, PVDF D: 00CPETG C, PVDF A: 1919PETG C, PVDF B: 11PETG C, PVDF C: 33PETG C, PVDF D: 11DPETG D, PVDF A: 5959PETG D, PVDF B: 1616PETG D, PVDF C: 2020PETG D, PVDF D: 1616
Number of source rows for each pair of ratings at 20 °C. Outlined cells are rows where both materials have the same rating.

Chemical classes were assigned by this site, not by the source. Mixtures and trade products without a clear class are not counted.

By chemical class

Chemical classPETG: rated A or BPVDF: rated A or B
Mineral acids20 % (41 rows)87 % (61 rows)
Organic acids70 % (33 rows)94 % (64 rows)
Alkalis45 % (20 rows)64 % (22 rows)
Salts and salt solutions100 % (159 rows)99 % (198 rows)
Oxidising agents and halogens29 % (38 rows)87 % (62 rows)
Alcohols and glycols100 % (40 rows)98 % (58 rows)
Phenols–71 % (14 rows)
Ketones and aldehydes21 % (24 rows)62 % (34 rows)
Esters and ethers57 % (28 rows)64 % (66 rows)
Amines and nitrogen compounds78 % (9 rows)76 % (38 rows)
Aromatic hydrocarbons–100 % (14 rows)
Fuels, mineral oils and aliphatic hydrocarbons98 % (65 rows)97 % (72 rows)
Vegetable and animal oils, fats, essential oils100 % (34 rows)88 % (48 rows)
Halogenated hydrocarbons32 % (25 rows)72 % (54 rows)
Foods and beverages100 % (43 rows)98 % (46 rows)

Where the ratings differ most

Rows where the two ratings at 20 °C are at least two grades apart: 104 in total, the first 40 shown.

ChemicalConcentrationPETGPVDF
1,2-DibromoethaneDA
Acetic Acid100 %DA
Acetic Acid90 %DA
AcetonitrileDA
AcetophenoneDA
Acetyl Chloride100 %DA
Allyl Chloride100 %DA
Battery Acid38 %DA
BenzaldehydeDA
BenzeneDA
Benzenesulfonic AcidsaturatedDA
Bitter Almond OilDA
BromineDA
Bromine VaporsDA
Bromine WatersaturatedDA
Chloric Acid20 %DA
Chlorine97 %DA
Chlorine GasDA
Chlorine WaterDA
Chloroacetic Acid50 %DA
Chloroform100 %DA
Chromic Acid20 %DA
Chromic Acid50 %DA
CresolDA
Cyclohexanonetechnical gradeDA
Dichloroacetic Acid50 %DA
Dichloroacetic Acidtechnical gradeDA
Dichloroethylenetechnical gradeDA
DichloromethaneDA
Diisobutyl Ketonetechnical gradeDA
Dimethylformamide (DMF)AD
Ethyl Chloroacetatetechnical gradeDA
Ethylene DichlorideDA
Fluorosilicic Acid32 %DA
Hydrobromic Acid40 %DA
Hydrobromic Acid50 %DA
Hydrochloric Acid35 %DA
Hydrochloric AcidconcentratedDA
Hydrofluoric Acid4 %DA
Hydrofluoric Acid50 %DA

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.

More comparisons

HDPE vs PETGHDPE vs PVDFLDPE vs PETGLDPE vs PVDFPP vs PETGPP vs PVDFPVC Rigid vs PETGPVC Rigid vs PVDFPVC Flexible vs PETGPVC Flexible vs PVDFPMP vs PETGPMP vs PVDFPolystyrene vs PETGPolystyrene vs PVDFSAN vs PETGSAN vs PVDFPolycarbonate vs PETGPolycarbonate vs PVDFPETG vs Acetal (POM)PETG vs Nylon (PA)

Frequently Asked Questions

Is PETG or PVDF more chemical-resistant?

Of 612 chemicals rated for both materials at 20 °C, PETG and PVDF share the same rating in 340 rows (56 %). PETG is rated better in 29 rows and PVDF in 243 rows.

How do PETG and PVDF compare for chemical resistance?

Based on 612 chemicals tested for both: PETG is rated better with Vegetable and animal oils, fats, essential oils. PVDF is rated better with Mineral acids, Oxidising agents and halogens, Ketones and aldehydes, Halogenated hydrocarbons. They perform similarly with Salts and salt solutions, Alcohols and glycols, Esters and ethers, Amines and nitrogen compounds.

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.