Chemical compatibility

Polypropylene Chemical Compatibility

93 chemicals rated Excellent for polypropylene tanks and polypropylene fittings, with gasket ratings so you can choose the right seal. Click any chemical for full resin, fitting, gasket and metal ratings.

  • Acids & caustics
  • Salts & brines
  • Alcohols & glycols

93 Excellent matches

Chemicals Polypropylene Handles Best

Every chemical below is rated Excellent for both polypropylene tanks and polypropylene fittings. Gasket ratings show which seal to specify on bulkheads and flanges.

Excellent Good Fair Not recommended No data
ChemicalPP TankPP FittingsEPDMViton®Buna-N
ACETALDEHYDEExcellentExcellentExcellentNo dataNo data
ACETAMIDEExcellentExcellentExcellentGoodExcellent
ACETONEExcellentExcellentExcellentNo dataNo data
ALUMINUM CHLORIDE SOLUTION 32 DEGREES BAUMEExcellentExcellentExcellentExcellentExcellent
ALUMINUM CHLOROHYDRATE 50%ExcellentExcellentNo dataExcellentExcellent
ALUMINUM SULFATEExcellentExcellentExcellentExcellentExcellent
ALUMSExcellentExcellentExcellentExcellentExcellent
AMMONIA 10%ExcellentExcellentExcellentNo dataExcellent
AMMONIUM CHLORIDE 25%ExcellentExcellentExcellentExcellentGood
AMMONIUM HYDROXIDEExcellentExcellentExcellentGoodNo data
AMMONIUM SULFATEExcellentExcellentExcellentExcellentExcellent
ANTIFREEZE (GLYCOL BASED)ExcellentExcellentExcellentExcellentExcellent
ARSENIC ACIDExcellentExcellentExcellentExcellentExcellent
BARIUM CHLORIDEExcellentExcellentExcellentExcellentExcellent
BEERExcellentExcellentExcellentExcellentExcellent
BENZYL ALCOHOLExcellentExcellentGoodExcellentNo data
BORIC ACIDExcellentExcellentExcellentExcellentExcellent
BRINEExcellentExcellentExcellentExcellentExcellent
BUTYL ALCOHOLExcellentExcellentExcellentExcellentFair
CALCIUM CHLORIDE (30% IN WATER)ExcellentExcellentExcellentExcellentExcellent
CALCIUM CHLORIDE (SATURATE)ExcellentExcellentExcellentExcellentExcellent
CALCIUM HYDROXIDE (50%)ExcellentExcellentExcellentExcellentExcellent
CARBONIC ACIDExcellentExcellentGoodExcellentNo data
CAUSTIC POTASH 45%ExcellentExcellentExcellentGoodGood
CAUSTIC SODA (50%)ExcellentExcellentExcellentNo dataExcellent
CAUSTIC SODA (80%)ExcellentExcellentGoodNo dataNo data
CITRIC ACIDExcellentExcellentExcellentExcellentExcellent
COPPER CHLORIDEExcellentExcellentExcellentNo dataExcellent
CRUDE OIL (TEXAS)ExcellentExcellentNo dataExcellentExcellent
DIESEL EXHAUST FLUID (DEF)ExcellentExcellentExcellentExcellentGood
DIESEL FUELExcellentExcellentNo dataExcellentExcellent
DISODIUM PHOSPHATEExcellentExcellentExcellentExcellentNo data
ETHANOLExcellentExcellentExcellentExcellentFair
ETHYL ACETATEExcellentExcellentGoodNo dataNo data
ETHYL ALCOHOLExcellentExcellentExcellentExcellentFair
ETHYLENE GLYCOLExcellentExcellentExcellentExcellentExcellent
FERRIC ACID (FERRIC CHLORIDE)ExcellentExcellentExcellentExcellentExcellent
FERRIC CHLORIDEExcellentExcellentExcellentExcellentExcellent
FERRIC SULFATE 60%ExcellentExcellentExcellentExcellentExcellent
FERROUS CHLORIDEExcellentExcellentExcellentExcellentExcellent
FERROUS SULFATE (20%)ExcellentExcellentExcellentGoodExcellent
FORMIC ACIDExcellentExcellentExcellentFairFair
HIGH FRUCTOSE CORN SYRUP 55%ExcellentExcellentExcellentExcellentNo data
HYDROFLUORIC ACID (HF) 49%ExcellentExcellentNo dataGoodNo data
HYDROFLUOSILICIC ACID (100%)ExcellentExcellentExcellentExcellentGood
HYDROFLUOSILICIC ACID (20%)ExcellentExcellentExcellentExcellentExcellent
ISOOCTANEExcellentExcellentNo dataGoodExcellent
LIQUID AMMONIUM SULFATE (40% by weight)ExcellentExcellentExcellentExcellentExcellent
MAGNESIUM CHLORIDE (31%)ExcellentExcellentExcellentExcellentExcellent
MAGNESIUM HYDROXIDE LIQUID 60%ExcellentExcellentExcellentExcellentExcellent
MALIC ACIDExcellentExcellentNot recommendedExcellentExcellent
METHANOLExcellentExcellentExcellentFairExcellent
METHYL ALCOHOLExcellentExcellentExcellentFairExcellent
MINERAL OILExcellentExcellentNo dataExcellentExcellent
MOTOR OILExcellentExcellentNo dataNo dataExcellent
NITRIC ACID (20%)ExcellentExcellentExcellentExcellentNo data
NITROUS ACIDExcellentExcellentExcellentGoodNo data
OLIVE OILExcellentExcellentNo dataExcellentNo data
OXALIC ACID (COLD)ExcellentExcellentExcellentExcellentNo data
PHOSPHORIC ACID (<40%)ExcellentExcellentGoodExcellentNo data
PHOSPHORIC ACID (>40%)ExcellentExcellentGoodExcellentNo data
POTASSIUM ACETATE 50%ExcellentExcellentExcellentNot recommendedFair
POTASSIUM HYDROXIDE (Caustic Potash)ExcellentExcellentExcellentGoodGood
POTASSIUM HYDROXIDE 50%ExcellentExcellentExcellentGoodGood
PROPYL ALCOHOLExcellentExcellentExcellentExcellentExcellent
PROPYLENE GLYCOLExcellentExcellentExcellentExcellentExcellent
SALT BRINE (NaCl SATURATED)ExcellentExcellentExcellentExcellentExcellent
SODIUM BISULFATEExcellentExcellentExcellentExcellentGood
SODIUM BISULFITEExcellentExcellentExcellentExcellentExcellent
SODIUM BROMIDE - NALCO ACTIBROM 1318ExcellentExcellentNo dataExcellentExcellent
SODIUM HYDROXIDE (50%)ExcellentExcellentExcellentNo dataExcellent
SODIUM HYDROXIDE (80%)ExcellentExcellentGoodNo dataNo data
SODIUM HYPOCHLORITE (<20%)ExcellentExcellentGoodExcellentGood
SODIUM NITRATEExcellentExcellentExcellentExcellentExcellent
SODIUM SULFATE 23%ExcellentExcellentExcellentExcellentExcellent
SOYBEAN OILExcellentExcellentFairExcellentExcellent
SULFUR DIOXIDEExcellentExcellentExcellentExcellentNo data
SULFURIC ACID 1% to 10%ExcellentExcellentExcellentExcellentExcellent
SULFURIC ACID 10% to 75%ExcellentExcellentGoodExcellentGood
TANNIC ACIDExcellentExcellentExcellentExcellentExcellent
TRICHLOROACETIC ACIDExcellentExcellentGoodFairNo data
UREAExcellentExcellentExcellentExcellentGood
VINEGARExcellentExcellentExcellentExcellentGood
WASTE WATERExcellentExcellentExcellentExcellentExcellent
WATERExcellentExcellentExcellentExcellentExcellent
WATER - HOT - UP TO 200 F.ExcellentExcellentExcellentExcellentExcellent
WATER - POTABLEExcellentExcellentExcellentExcellentExcellent
WATER, DEIONIZEDExcellentExcellentExcellentExcellentExcellent
WATER, REVERSE OSMOSISExcellentExcellentExcellentExcellentExcellent
WATER, SALTExcellentExcellentExcellentExcellentExcellent
WINESExcellentExcellentExcellentNo dataNo data
ZINC CHLORIDEExcellentExcellentExcellentExcellentExcellent
ZINC SULFATEExcellentExcellentExcellentExcellentExcellent

This chart is a general guide. Chemical resistance depends on concentration, temperature and exposure time. Confirm your application with Bailiff before ordering. Don’t use welded flanges in sidewalls for nitric acid, sodium hypochlorite, sulfuric acid or other oxidizers. Need ratings for HDPE, PVDF or nylon tanks? See the full chemical compatibility database on plasticstoragetanks.com.

Choosing seals

Gaskets Matter as Much as the Tank

EPDM

A strong choice for most acids, caustics, alcohols and water service. Not for oils and fuels.

Viton®

Best for oils, fuels and many strong acids. Avoid with ketones like acetone and with strong caustics.

Buna-N

Good for oils, fuels and water. Not for oxidizing acids or ketones.

Polypropylene fittings

Every chemical on this page is rated Excellent for polypropylene fittings. See fittings.

Tell Us What You’re Storing

Send the chemical, concentration, temperature and size. We’ll match the tank and fittings and send a quote.