The Ultimate Guide to Polypropylene

Polypropylene is a thermoplastic polymer used widely in labware. It belongs to the group of polyolefins and is partially crystalline and non-polar. Polypropylene’s chemical structure is similar to polyethylene, but each unit of the chain has a methyl group attached. It’s slightly harder and more heat resistant than polyethylene, and offers the best stress-crack resitance of all the polyolefins. And as with all polyolefins, polypropylene is non-toxic, non-contaminating and lighter than water.

In it’s homopolymer form, Polypropylene is used to make products where strength, autoclavability and stress-crack resitance are required. Such items usually include; carboys, autoclave baskets, vacuum flasks and vials. Caps are often Polypropylene regardless of the container material because of its ability to make the ideal seal between dissimilar materials and its high stress-crack resistance.

Polypropylene vials
Polypropylene centrifuge tubes

Polypropylene has a high chemical resistance to a wide range of chemicals. However, when conducting any experiment it’s imperative that the limits of the material you’re using are known.

Physical Properties

ThermalPhysicalPermeabilitySterilisationRegulatory
Heat Distortion Temperature: 107°C (225°F)

Max operational temperature: 135°C (275°F)

Lower temperature limit: 0°C (32°F) – below which it becomes brittle

Melting point: 160°C (320°F)

Large thermal expansion.
UV Resistance: Fair

Density: 0.895 – 0.92 g/cm3

Young’s modulus: 1300 – 1800 N/mm²

Tough, flexible and good fatigue resistance.

Recyclable.
cc.-mm/ m2-24 hr.-Bar

N2: 18.65
O2: 93.25
CO2: 310.84
Autoclave: Yes

Ethylene Oxide Sterilisation: Yes

Dry heat: No

Radiation: No, unless stabilised

Disinfectants: Yes
Non-cytotoxic: Yes

Suitable for food & bev: Yes

Regulation Part 21 CFR: 177.1510
Table 1 – Physical Properties of Polypropylene

Autoclaving

Be sure to follow all autoclave instructions provided with your Polypropylene labware. Typically, the recommended autoclave cycle for Polypropylene is 121°C at 15 psi for 20 minutes. It is important that air is free to circulate in, around and out containers throughout the cycle, especially during the venting and cooling stages. Not properly venting containers can result in collapse or implosion. Cap threads must be completely disengaged from the container threads.

Aging of Polypropylene

Polypropylene is subject to aging over time, and is susceptible to UV degradation. Polyproylne labware should be replaced when permanent discolouration occurs. Repeated use of an autoclave will speed up the aging process. To maximise the life of your Polypropylene labware, be sure to store them in cabinets out of direct contact from light, use only with suitable chemicals, and wash with a pH-neutral detergent.

Chemical resistance chart​

Due to its surface inertness, Polypropylene is chemically resistant and compatible with many sample chemistries and solvents. It is the optimal choice when working with proteins and an excellent choice when working with pH sensitive samples.

In general, polypropylene offers good resistance to non-oxidising acids and bases, fats and most organic solvents. It is NOT compatible with strong oxidants. At raised temperatures, it can be dissolved in non-polar sovlents such as Xylene, Tetralin and Decalin. 

The Chemical Resistance chart below offers a comprehensive overview of the chemical compatibility of Polypropylene with a range of chemicals, solvents, alcohols and other products. 

Please note: This testing was not conducted by Icarus Group Ltd, and is from a reputable source. It is only to be used as a guide when selecting equipment based on its chemical compatibility. Further testing should always be completed to ensure that the equipment is fit for purpose under the specific conditions required from your application before use.

The exposure time for each of the samples was 48-hours. Icarus Group Ltd therefore have no knowledge of possible effects of exposure past this time period. We do not warrant (neither express or implied) that the information on this page is accurate or complete or that any material is suitable for any purpose. 

Ratings:

  • A: Excellent
  • B: Good – Minor effect, slight corrosion or discolouration
  • C: Fair – Moderate effect, not recommended for continuous use. Softening, loss of strength or swelling may occur
  • D: Severe effect – Not recommended for ANY use
  • N/A: No information available

Explanation of footnotes  1. – Satisfactory to 22°C (72°F)
2. – Satisfactory to 48°C (120°F)

ChemicalCompatibility
AcetaldehydeA1-Excellent
AcetamideA1-Excellent
Acetate SolventB1-Good
Acetic AcidB-Good
Acetic Acid 20%A-Excellent
Acetic Acid 80%A-Excellent
Acetic Acid, GlacialA1-Excellent
Acetic AnhydrideB1-Good
AcetoneA-Excellent
Acetyl BromideN/A
Acetyl Chloride (dry)D-Severe Effect
AcetyleneA1-Excellent
AcrylonitrileA1-Excellent
Adipic AcidB2-Good
Alcohols: AmylB1-Good
Alcohols: BenzylA-Excellent
Alcohols: ButylA-Excellent
Alcohols: DiacetoneB2-Good
Alcohols: EthylA-Excellent
Alcohols: HexylN/A
Alcohols: IsobutylA1-Excellent
Alcohols: IsopropylA2-Excellent
Alcohols: MethylA2-Excellent
Alcohols: OctylN/A
Alcohols: PropylA-Excellent
Aluminum ChlorideA-Excellent
Aluminum Chloride 20%A-Excellent
Aluminum FluorideA-Excellent
Aluminum HydroxideA-Excellent
Aluminum NitrateA2-Excellent
Aluminum Potassium Sulfate 10%A-Excellent
Aluminum Potassium Sulfate 100%A-Excellent
Aluminum SulfateA-Excellent
AlumsA-Excellent
AminesB2-Good
Ammonia 10%A2-Excellent
Ammonia NitrateA-Excellent
Ammonia, anhydrousA-Excellent
Ammonia, liquidA2-Excellent
Ammonium AcetateA-Excellent
Ammonium BifluorideA-Excellent
Ammonium CarbonateA-Excellent
Ammonium CaseinateN/A
Ammonium ChlorideA-Excellent
Ammonium HydroxideA-Excellent
Ammonium NitrateA-Excellent
Ammonium OxalateA-Excellent
Ammonium PersulfateA-Excellent
Ammonium Phosphate, DibasicA-Excellent
Ammonium Phosphate, MonobasicA-Excellent
Ammonium Phosphate, TribasicA-Excellent
Ammonium SulfateA-Excellent
Ammonium SulfiteA2-Excellent
Ammonium ThiosulfateN/A
Amyl AcetateB1-Good
Amyl AlcoholB1-Good
Amyl ChlorideD-Severe Effect
AnilineA1-Excellent
Aniline HydrochlorideD-Severe Effect
AntifreezeD-Severe Effect
Antimony TrichlorideA-Excellent
Aqua Regia (80% HCl, 20% HNO3)B1-Good
Arochlor 1248D-Severe Effect
Aromatic HydrocarbonsD-Severe Effect
Arsenic AcidA-Excellent
Arsenic SaltsN/A
AsphaltB1-Good
Barium CarbonateA-Excellent
Barium ChlorideA-Excellent
Barium CyanideD-Severe Effect
Barium HydroxideB-Good
Barium NitrateA-Excellent
Barium SulfateB1-Good
Barium SulfideB-Good
BeerA1-Excellent
Beet Sugar LiquidsA1-Excellent
BenzaldehydeD-Severe Effect
BenzeneD-Severe Effect
Benzene Sulfonic AcidD-Severe Effect
Benzoic AcidB1-Good
BenzolB-Good
BenzonitrileN/A
Benzyl ChlorideC1-Fair
Bleaching LiquorsA1-Excellent
Borax (Sodium Borate)B-Good
Boric AcidA-Excellent
Brewery SlopN/A
BromineD-Severe Effect
ButadieneC-Fair
ButaneA1-Excellent
Butanol (Butyl Alcohol)A1-Excellent
ButterN/A
ButtermilkA1-Excellent
Butyl AmineB1-Good
Butyl EtherD-Severe Effect
Butyl PhthalateB2-Good
ButylacetateB1-Good
ButyleneN/A
Butyric AcidB1-Good
Calcium BisulfateN/A
Calcium BisulfideA-Excellent
Calcium BisulfiteA-Excellent
Calcium CarbonateA-Excellent
Calcium ChlorateN/A
Calcium ChlorideA2-Excellent
Calcium HydroxideA2-Excellent
Calcium HypochloriteA1-Excellent
Calcium NitrateA2-Excellent
Calcium OxideA-Excellent
Calcium SulfateA-Excellent
CalgonA-Excellent
Cane JuiceC1-Fair
Carbolic Acid (Phenol)B-Good
Carbon BisulfideD-Severe Effect
Carbon Dioxide (dry)A2-Excellent
Carbon Dioxide (wet)A2-Excellent
Carbon DisulfideD-Severe Effect
Carbon MonoxideA-Excellent
Carbon TetrachlorideD-Severe Effect
Carbon Tetrachloride (dry)D-Severe Effect
Carbon Tetrachloride (wet)D-Severe Effect
Carbonated WaterB-Good
Carbonic AcidA-Excellent
CatsupA-Excellent
Chloric AcidN/A
Chlorinated GlueN/A
Chlorine (dry)D-Severe Effect
Chlorine WaterD-Severe Effect
Chlorine, Anhydrous LiquidD-Severe Effect
Chloroacetic AcidC1-Fair
Chlorobenzene (Mono)C1-Fair
ChlorobromomethaneA-Excellent
ChloroformC1-Fair
Chlorosulfonic AcidD-Severe Effect
Chocolate SyrupA2-Excellent
Chromic Acid 10%D-Severe Effect
Chromic Acid 30%D-Severe Effect
Chromic Acid 5%D-Severe Effect
Chromic Acid 50%D-Severe Effect
Chromium SaltsN/A
CiderA-Excellent
Citric AcidA-Excellent
Citric OilsA-Excellent
Clorox (Bleach)A-Excellent
CoffeeA-Excellent
Copper ChlorideA-Excellent
Copper CyanideA-Excellent
Copper FluoborateN/A
Copper NitrateA-Excellent
Copper Sulfate>5%A-Excellent
Copper Sulfate 5%A-Excellent
CreamA-Excellent
CresolsD-Severe Effect
Cresylic AcidA1-Excellent
Cupric AcidA2-Excellent
Cyanic AcidN/A
CyclohexaneD-Severe Effect
CyclohexanoneD-Severe Effect
DetergentsA-Excellent
Diacetone AlcoholA1-Excellent
DichlorobenzeneC1-Fair
DichloroethaneD-Severe Effect
Diesel FuelA1-Excellent
Diethyl EtherA1-Excellent
DiethylamineA1-Excellent
Diethylene GlycolA2-Excellent
Dimethyl AnilineD-Severe Effect
Dimethyl FormamideA-Excellent
DiphenylD-Severe Effect
Diphenyl OxideD-Severe Effect
DyesN/A
Epsom Salts (Magnesium Sulfate)A-Excellent
EthaneD-Severe Effect
EthanolA-Excellent
EthanolamineD-Severe Effect
EtherD-Severe Effect
Ethyl AcetateA1-Excellent
Ethyl BenzoateB1-Good
Ethyl ChlorideD-Severe Effect
Ethyl EtherD-Severe Effect
Ethyl SulfateN/A
Ethylene BromideD-Severe Effect
Ethylene ChlorideC1-Fair
Ethylene ChlorohydrinD-Severe Effect
Ethylene DiamineN/A
Ethylene DichlorideD-Severe Effect
Ethylene GlycolA-Excellent
Ethylene OxideD-Severe Effect
Fatty AcidsA-Excellent
Ferric ChlorideA-Excellent
Ferric NitrateA-Excellent
Ferric SulfateA-Excellent
Ferrous ChlorideA-Excellent
Ferrous SulfateA-Excellent
Fluoboric AcidA-Excellent
FluorineD-Severe Effect
Fluosilicic AcidA-Excellent
Formaldehyde 100%C-Fair
Formaldehyde 40%A-Excellent
Formic AcidA1-Excellent
Freon 113D-Severe Effect
Freon 12A2-Excellent
Freon 22B-Good
Freon TFD-Severe Effect
Freonr 11A-Excellent
Fruit JuiceB-Good
Fuel OilsA-Excellent
Furan ResinD-Severe Effect
FurfuralD-Severe Effect
Gallic AcidA-Excellent
Gasoline (high-aromatic)A-Excellent
Gasoline, leaded, ref.B-Good
Gasoline, unleadedC1-Fair
GelatinA-Excellent
GlucoseA-Excellent
Glue, P.V.A.N/A
GlycerinA-Excellent
Glycolic AcidA-Excellent
Gold MonocyanideN/A
Grape JuiceN/A
GreaseN/A
HeptaneC2-Fair
HexaneB1-Good
HoneyA-Excellent
Hydraulic Oil (Petro)D-Severe Effect
Hydraulic Oil (Synthetic)D-Severe Effect
HydrazineC-Fair
Hydrobromic Acid 100%C1-Fair
Hydrobromic Acid 20%A2-Excellent
Hydrochloric Acid 100%C-Fair
Hydrochloric Acid 20%B2-Good
Hydrochloric Acid 37%C-Fair
Hydrochloric Acid, Dry GasB-Good
Hydrocyanic AcidA-Excellent
Hydrocyanic Acid (Gas 10%)A-Excellent
Hydrofluoric Acid 100%C1-Fair
Hydrofluoric Acid 20%A2-Excellent
Hydrofluoric Acid 50%A2-Excellent
Hydrofluoric Acid 75%C1-Fair
Hydrofluosilicic Acid 100%A-Excellent
Hydrofluosilicic Acid 20%A-Excellent
Hydrogen GasA-Excellent
Hydrogen Peroxide 10%A-Excellent
Hydrogen Peroxide 100%B1-Good
Hydrogen Peroxide 30%B1-Good
Hydrogen Peroxide 50%B1-Good
Hydrogen Sulfide (aqua)A1-Excellent
Hydrogen Sulfide (dry)A1-Excellent
HydroquinoneA-Excellent
Hydroxyacetic Acid 70%N/A
InkN/A
IodineC-Fair
Iodine (in alcohol)N/A
IodoformN/A
IsooctaneA2-Excellent
Isopropyl AcetateB1-Good
Isopropyl EtherB-Good
IsotaneD-Severe Effect
Jet Fuel (JP3, JP4, JP5)A1-Excellent
KeroseneB-Good
KetonesC-Fair
Lacquer ThinnersD-Severe Effect
LacquersD-Severe Effect
Lactic AcidB-Good
LardB1-Good
LatexA2-Excellent
Lead AcetateA1-Excellent
Lead NitrateA2-Excellent
Lead SulfamateA2-Excellent
LigroinA2-Excellent
LimeN/A
Linoleic AcidB1-Good
Lithium ChlorideA2-Excellent
Lithium HydroxideN/A
LubricantsA1-Excellent
Lye: Ca(OH)2 Calcium HydroxideA2-Excellent
Lye: KOH Potassium HydroxideA-Excellent
Lye: NaOH Sodium HydroxideA-Excellent
Magnesium BisulfateA2-Excellent
Magnesium CarbonateA-Excellent
Magnesium ChlorideA2-Excellent
Magnesium HydroxideA-Excellent
Magnesium NitrateA-Excellent
Magnesium OxideN/A
Magnesium Sulfate (Epsom Salts)A-Excellent
Maleic AcidA-Excellent
Maleic AnhydrideD-Severe Effect
Malic AcidA1-Excellent
Manganese SulfateN/A
MashN/A
MayonnaiseN/A
MelamineA-Excellent
Mercuric Chloride (dilute)B-Good
Mercuric CyanideB-Good
Mercurous NitrateA-Excellent
MercuryB-Good
MethaneA-Excellent
Methanol (Methyl Alcohol)A2-Excellent
Methyl AcetateD-Severe Effect
Methyl AcetoneN/A
Methyl AcrylateD-Severe Effect
Methyl Alcohol 10%A2-Excellent
Methyl BromideC-Fair
Methyl Butyl KetoneD-Severe Effect
Methyl CellosolveB-Good
Methyl ChlorideD-Severe Effect
Methyl DichlorideD-Severe Effect
Methyl Ethyl KetoneB-Good
Methyl Ethyl Ketone PeroxideN/A
Methyl Isobutyl KetoneA-Excellent
Methyl Isopropyl KetoneN/A
Methyl MethacrylateD-Severe Effect
MethylamineA2-Excellent
Methylene ChlorideB1-Good
MilkB-Good
Mineral SpiritsB-Good
MolassesB-Good
Monochloroacetic acidN/A
MonoethanolamineB-Good
MorpholineB2-Good
Motor oilA1-Excellent
MustardA-Excellent
NaphthaB-Good
NaphthaleneB-Good
Natural GasA-Excellent
Nickel ChlorideA-Excellent
Nickel NitrateA2-Excellent
Nickel SulfateA-Excellent
Nitrating Acid (<15% HNO3)C-Fair
Nitrating Acid (>15% H2SO4)C-Fair
Nitrating Acid (S1% Acid)C-Fair
Nitrating Acid (S15% H2SO4)C-Fair
Nitric Acid (20%)A2-Excellent
Nitric Acid (50%)B-Good
Nitric Acid (5-10%)A-Excellent
Nitric Acid (Concentrated)D-Severe Effect
NitrobenzeneB1-Good
Nitrogen FertilizerN/A
NitromethaneB2-Good
Nitrous AcidA-Excellent
Nitrous OxideD-Severe Effect
Oils: AnilineA-Excellent
Oils: AniseN/A
Oils: BayN/A
Oils: BoneA-Excellent
Oils: CastorA-Excellent
Oils: CinnamonD-Severe Effect
Oils: CitricA-Excellent
Oils: CloveN/A
Oils: CoconutA1-Excellent
Oils: Cod LiverA1-Excellent
Oils: CornA2-Excellent
Oils: CottonseedA-Excellent
Oils: CreosoteC-Fair
Oils: Diesel Fuel Oil (20, 30, 40, 50)A1-Excellent
Oils: Fuel Oil (1, 2, 3, 5A, 5B, 6)B-Good
Oils: GingerN/A
Oils: Hydraulic Oil (Petro)D-Severe Effect
Oils: Hydraulic Oil (Synthetic)D-Severe Effect
Oils: LemonN/A
Oils: LinseedA-Excellent
Oils: MineralA-Excellent
Oils: OliveA-Excellent
Oils: OrangeA-Excellent
Oils: PalmN/A
Oils: PeanutD-Severe Effect
Oils: PeppermintN/A
Oils: PineB-Good
Oils: RapeseedD-Severe Effect
Oils: RosinA2-Excellent
Oils: Sesame SeedA-Excellent
Oils: SiliconeA-Excellent
Oils: SoybeanA1-Excellent
Oils: Sperm (whale)N/A
Oils: TanningN/A
Oils: TransformerB-Good
Oils: TurbineB1-Good
Oleic AcidB1-Good
Oleum 100%D-Severe Effect
Oleum 25%D-Severe Effect
Oxalic Acid (cold)A2-Excellent
OzoneB-Good
Palmitic AcidB1-Good
ParaffinA1-Excellent
PentaneD-Severe Effect
Perchloric AcidC-Fair
PerchloroethyleneD-Severe Effect
PetrolatumD-Severe Effect
PetroleumB1-Good
Phenol (10%)B1-Good
Phenol (Carbolic Acid)B-Good
Phosphoric Acid (>40%)A2-Excellent
Phosphoric Acid (crude)B2-Good
Phosphoric Acid (molten)D-Severe Effect
Phosphoric Acid (S40%)A2-Excellent
Phosphoric Acid AnhydrideA-Excellent
PhosphorusA-Excellent
Phosphorus TrichlorideN/A
Photographic DeveloperA-Excellent
Photographic SolutionsA2-Excellent
Phthalic AcidA-Excellent
Phthalic AnhydrideD-Severe Effect
Picric AcidB1-Good
Plating Solutions, Antimony Plating 130°FA-Excellent
Plating Solutions, Arsenic Plating 110°FA-Excellent
Plating Solutions (Brass): High-Speed Brass Bath 110°FA-Excellent
Plating Solutions (Brass): Regular Brass Bath 100°FA-Excellent
Plating Solutions (Bronze): Cu-Cd Bronze Bath R.T.A-Excellent
Plating Solutions (Bronze): Cu-Sn Bronze Bath 160°FA-Excellent
Plating Solutions (Bronze): Cu-Zn Bronze Bath 100°FA-Excellent
Plating Solutions (Cadmium): Cyanide Bath 90°FA-Excellent
Plating Solutions (Cadmium): Fluoborate Bath 100°FA-Excellent
Plating Solutions, (Chromium): Barrel Chrome Bath 95°FA-Excellent
Plating Solutions, (Chromium): Black Chrome Bath 115°FA-Excellent
Plating Solutions, (Chromium): Chromic-Sulfuric Bath 130°FA-Excellent
Plating Solutions, (Chromium): Fluoride Bath 130°FA-Excellent
Plating Solutions, (Chromium): Fluosilicate Bath 95°FD-Severe Effect
Plating Solutions (Copper) (Acid): Copper Fluoborate Bath 120°FA-Excellent
Plating Solutions (Copper) (Acid): Copper Sulfate Bath R.T.A-Excellent
Plating Solutions (Copper) (Cyanide): Copper Strike Bath 120°FA-Excellent
Plating Solutions (Copper) (Cyanide): High-Speed Bath 180°FA-Excellent
Plating Solutions (Copper) (Cyanide): Rochelle Salt Bath 150°FA-Excellent
Plating Solutions (Copper) (Misc): Copper (Electroless)A-Excellent
Plating Solutions (Copper) (Misc): Copper PyrophosphateA-Excellent
Plating Solutions (Gold): Acid 75°FA-Excellent
Plating Solutions (Gold): Cyanide 150°FA-Excellent
Plating Solutions (Gold): Neutral 75°FA-Excellent
Plating Solutions, Indium Sulfamate Plating R.T.A-Excellent
Plating Solutions (Iron): Ferrous Am Sulfate Bath 150°FA-Excellent
Plating Solutions (Iron): Ferrous Chloride Bath 190°FC-Fair
Plating Solutions (Iron): Ferrous Sulfate Bath 150°FA-Excellent
Plating Solutions (Iron): Fluoborate Bath 145°FA-Excellent
Plating Solutions (Iron): Sulfamate 140°FA-Excellent
Plating Solutions (Iron): Sulfate-Chloride Bath 160°FA-Excellent
Plating Solutions, Lead Fluoborate PlatingA-Excellent
Plating Solutions, (Nickel): Electroless 200°FD-Severe Effect
Plating Solutions, (Nickel): Fluoborate 100-170°FA-Excellent
Plating Solutions, (Nickel): High-Chloride 130-160°FA-Excellent
Plating Solutions, (Nickel): Sulfamate 100-140°FA-Excellent
Plating Solutions, (Nickel): Watts Type 115-160°FA-Excellent
Plating Solutions (Rhodium) 120°FA-Excellent
Plating Solutions, (Silver) 80-120°FA-Excellent
Plating Solutions, Tin-Fluoborate Plating 100°FA-Excellent
Plating Solutions, Tin-Lead Plating 100°FA-Excellent
Plating Solutions (Zinc): Acid Chloride 140°FA-Excellent
Plating Solutions (Zinc): Acid Fluoborate Bath R.T.A-Excellent
Plating Solutions (Zinc): Acid Sulfate Bath 150°FA-Excellent
Plating Solutions (Zinc): Alkaline Cyanide Bath R.T.A-Excellent
Potash (Potassium Carbonate)A-Excellent
Potassium BicarbonateA-Excellent
Potassium BromideA-Excellent
Potassium ChlorateA-Excellent
Potassium ChlorideA-Excellent
Potassium ChromateA-Excellent
Potassium Cyanide SolutionsA-Excellent
Potassium DichromateA-Excellent
Potassium FerricyanideA2-Excellent
Potassium FerrocyanideA-Excellent
Potassium Hydroxide (Caustic Potash)A-Excellent
Potassium HypochloriteN/A
Potassium IodideA2-Excellent
Potassium NitrateA-Excellent
Potassium OxalateN/A
Potassium PermanganateA1-Excellent
Potassium SulfateA-Excellent
Potassium SulfideA-Excellent
Propane (liquefied)A-Excellent
PropyleneN/A
Propylene GlycolA2-Excellent
PyridineA2-Excellent
Pyrogallic AcidA-Excellent
ResorcinalA2-Excellent
RosinsA2-Excellent
RumA-Excellent
Rust InhibitorsA-Excellent
Salad DressingsA-Excellent
Salicylic AcidA1-Excellent
Salt Brine (NaCl saturated)A-Excellent
Sea WaterA-Excellent
Shellac (Bleached)A-Excellent
Shellac (Orange)A-Excellent
SiliconeA-Excellent
Silver BromideN/A
Silver NitrateA1-Excellent
Soap SolutionsA-Excellent
Soda Ash (see Sodium Carbonate)A-Excellent
Sodium AcetateA-Excellent
Sodium AluminateN/A
Sodium BenzoateA2-Excellent
Sodium BicarbonateA-Excellent
Sodium BisulfateA-Excellent
Sodium BisulfiteA-Excellent
Sodium Borate (Borax)A2-Excellent
Sodium BromideN/A
Sodium CarbonateA-Excellent
Sodium ChlorateA-Excellent
Sodium ChlorideA-Excellent
Sodium ChromateN/A
Sodium CyanideA-Excellent
Sodium FerrocyanideA-Excellent
Sodium FluorideA-Excellent
Sodium HydrosulfiteN/A
Sodium Hydroxide (20%)A-Excellent
Sodium Hydroxide (50%)A-Excellent
Sodium Hydroxide (80%)A-Excellent
Sodium Hypochlorite (<20%)A-Excellent
Sodium Hypochlorite (100%)B-Good
Sodium HyposulfateN/A
Sodium MetaphosphateA1-Excellent
Sodium MetasilicateA-Excellent
Sodium NitrateA-Excellent
Sodium PerborateA-Excellent
Sodium PeroxideB-Good
Sodium PolyphosphateA-Excellent
Sodium SilicateA-Excellent
Sodium SulfateA-Excellent
Sodium SulfideA-Excellent
Sodium SulfiteA2-Excellent
Sodium TetraborateN/A
Sodium Thiosulfate (hypo)A2-Excellent
SorghumN/A
Soy SauceN/A
Stannic ChlorideA-Excellent
Stannic FluoborateN/A
Stannous ChlorideA-Excellent
StarchA2-Excellent
Stearic AcidA2-Excellent
Stoddard SolventC-Fair
StyreneN/A
Sugar (Liquids)A-Excellent
Sulfate (Liquors)A-Excellent
Sulfur ChlorideC1-Fair
Sulfur DioxideA1-Excellent
Sulfur Dioxide (dry)A1-Excellent
Sulfur HexafluorideN/A
Sulfur TrioxideC-Fair
Sulfur Trioxide (dry)D-Severe Effect
Sulfuric Acid (<10%)A2-Excellent
Sulfuric Acid (10-75%)A1-Excellent
Sulfuric Acid (75-100%)C1-Fair
Sulfuric Acid (cold concentrated)A2-Excellent
Sulfuric Acid (hot concentrated)D-Severe Effect
Sulfurous AcidA-Excellent
Sulfuryl ChlorideN/A
TallowA2-Excellent
Tannic AcidA-Excellent
Tanning LiquorsA1-Excellent
Tartaric AcidA-Excellent
TetrachloroethaneC-Fair
TetrachloroethyleneD-Severe Effect
TetrahydrofuranC2-Fair
Tin SaltsA-Excellent
Toluene (Toluol)C1-Fair
Tomato JuiceA-Excellent
Trichloroacetic AcidA-Excellent
TrichloroethaneC-Fair
TrichloroethyleneC1-Fair
TrichloropropaneN/A
TricresylphosphateA1-Excellent
TriethylamineD-Severe Effect
Trisodium PhosphateA-Excellent
TurpentineD-Severe Effect
UreaA-Excellent
Uric AcidN/A
UrineA-Excellent
VarnishA-Excellent
Vegetable JuiceN/A
VinegarA-Excellent
Vinyl AcetateB1-Good
Vinyl ChlorideN/A
Water, Acid, MineA-Excellent
Water, DeionizedA2-Excellent
Water, DistilledA-Excellent
Water, FreshA-Excellent
Water, SaltA-Excellent
Weed KillersN/A
WheyN/A
Whiskey & WinesA-Excellent
White Liquor (Pulp Mill)A1-Excellent
White Water (Paper Mill)A-Excellent
XyleneB-Good
Zinc ChlorideA-Excellent
Zinc HydrosulfiteN/A
Zinc SulfateA-Excellent
Table 2 – Chemical Resistance of Polypropylene

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