CHEMICAL COMPATIBILITY CHART EPDM

1 CHEMICAL COMPATIBILITY CHART epdm Our products can be exposed to a huge variety of chemicals. The data table below is an application guide, and indicates the resistance of the specific thermoplastics we use in the construction of our products, to common chemicals. The data given should be used cautiously, and as a guide only. Various factors such as concentration, additives, exposure time, temperature and internal mechanical stress levels will all impact on the working life of our plastic parts. Use the table conservatively and if any doubt exists, do not proceed with the application.

2 In the table below there are four ratings: A- Excellent indicates that at ambient temperature and pressure, the material should not be affected. B- Good indicates that the material is slightly affected but not to the point of being unsuitable. C- Fair indicates a degree of reaction that is generally considered unsuitable and should not be used. D- Severe Effect indicates that the material should not be used under any circumstances All ratings are taken from data measured at ambient temperature and pressure.

3 Page 1 of 10 Kelco AcetaldehydeA-Excellent A cetamideA-Excellent Acetate SolventA-Excellent Acetic AcidA-Excellent A cetic Acid 20%A-Excellent Acetic Acid 80%A-Excellent Acetic Acid, GlacialB-Good A cetic AnhydrideB-Good AcetoneA-Excellent Acetyl Chloride (dry)D-Severe Effect AcetyleneA-Excellent AcrylonitrileD-Severe Effect Adipic AcidA-Excellent Alcohols:AmylA-Excellent Alcohols:BenzylB-Good Alcohols:ButylA-Excellent Alcohols:DiacetoneA-Excellent A lcohols:EthylA-Excellent Alcohols:HexylC-Fair Alcohols:IsobutylA-Excellent A lcohols:IsopropylA-Excellent Alcohols:MethylA-Excellent Alcohols:OctylA-Excellent A lcohols.

4 PropylA-Excellent Aluminum ChlorideA-Excellent Aluminum Chloride 20%A-Excellent A luminum FluorideA-Excellent Aluminum HydroxideA-Excellent Aluminum NitrateA-Excellent A luminum Potassium Sulfate 10%A-Excellent Aluminum Potassium Sulfate 100%A-Excellent Aluminum SulfateA-Excellent A lumsA-Excellent AminesB-Good Ammonia 10%A-Excellent Ammonia NitrateA-Excellent Ammonia, anhydrousA-Excellent Ammonia, liquidA-Excellent Ammonium AcetateA-Excellent Ammonium BifluorideA-Excellent Ammonium CarbonateA-Excellent Ammonium ChlorideA-Excellent A mmonium HydroxideA-Excellent Ammonium NitrateA-Excellent Ammonium OxalateA-Excellent A mmonium PersulfateB-Good Ammonium Phosphate, DibasicA-Excellent Ammonium Phosphate, MonobasicA-Excellent A mmonium Phosphate.

5 TribasicA-Excellent Ammonium SulfateA-Excellent Ammonium SulfiteA-Excellent A mmonium ThiosulfateA-Excellent Amyl AcetateA-Excellent Amyl AlcoholA-ExcellentPage 2 of 10 Kelco A myl ChlorideD-Severe Effect AnilineB-Good A niline HydrochlorideB-Good AntifreezeA-Excellent Antimony TrichlorideB-Good A qua Regia (80% HCl, 20% HNO3)C-Fair Arochlor 1248B-Good Aromatic HydrocarbonsD-Severe Effect Arsenic AcidA-Excellent AsphaltD-Severe Effect Barium CarbonateA-Excellent Barium ChlorideA-Excellent Barium CyanideA-Excellent Barium HydroxideA-Excellent Barium NitrateA-Excellent Barium SulfateA-Excellent Barium SulfideA-Excellent BeerA-Excellent B eet Sugar LiquidsA-Excellent BenzaldehydeA-Excellent BenzeneD-Severe Effect Benzene Sulfonic AcidD-Severe Effect Benzoic AcidD-Severe Effect BenzolD-Severe Effect B enzyl ChlorideD-Severe

6 Effect Bleaching LiquorsA-Excellent Borax (Sodium Borate)A-Excellent B oric AcidA-Excellent BromineD-Severe Effect ButadieneC-Fair B utaneD-Severe Effect Butanol (Butyl Alcohol)A-Excellent ButterA-Excellent B uttermilkA-Excellent Butyl EtherD-Severe Effect Butyl PhthalateB-Good ButylacetateB-Good ButyleneD-Severe Effect Butyric AcidB-Good Calcium BisulfateA-Excellent Calcium BisulfideC-Fair Calcium BisulfiteD-Severe Effect Calcium CarbonateA-Excellent C alcium ChlorateA-Excellent Calcium ChlorideA-Excellent Calcium HydroxideA-Excellent C alcium HypochloriteB-Good Calcium NitrateA-Excellent Calcium OxideA-Excellent C alcium SulfateA-Excellent CalgonA-Excellent Cane

7 JuiceA-Excellent C arbolic Acid (Phenol)B-Good Carbon BisulfideD-Severe Effect Carbon Dioxide (dry)B-GoodPage 3 of 10 Kelco C arbon Dioxide (wet)B-Good Carbon DisulfideD-Severe Effect C arbon MonoxideA-Excellent Carbon TetrachlorideD-Severe Effect Carbon Tetrachloride (dry)B-Good C arbon Tetrachloride (wet)D-Severe Effect Carbonic AcidB-Good CatsupA-Excellent C hlorinated GlueB-Good Chlorine (dry)A-Excellent Chlorine WaterC-Fair Chlorine, Anhydrous LiquidB-Good Chloroacetic AcidB-Good Chlorobenzene (Mono)D-Severe Effect ChlorobromomethaneB-Good ChloroformD-Severe Effect Chlorosulfonic AcidD-Severe Effect Chocolate SyrupA-Excellent C hromic Acid 10%C-Fair Chromic Acid 30%B-Good Chromic Acid 5%A-Excellent C hromic Acid 50%B-Good CiderA-Excellent Citric AcidA-Excellent C itric OilsB-Good Cloroxr (Bleach)

8 B-Good CoffeeA-Excellent C opper ChlorideA-Excellent Copper CyanideA-Excellent Copper Sulfate >5%A-Excellent C opper Sulfate 5%A-Excellent CresolsD-Severe Effect Cresylic AcidD-Severe Effect C upric AcidA-Excellent CyclohexaneD-Severe Effect CyclohexanoneB-Good DetergentsA-Excellent Diacetone AlcoholA-Excellent DichlorobenzeneD-Severe Effect Diesel FuelD-Severe Effect Diethyl EtherD-Severe Effect DiethylamineB-Good Diethylene GlycolA-Excellent D imethyl AnilineB-Good Dimethyl FormamideB-Good DiphenylD-Severe Effect D iphenyl OxideD-Severe Effect Epsom Salts (Magnesium Sulfate)

9 A-Excellent EthaneD-Severe Effect E thanolA-Excellent EthanolamineB-Good EtherC-Fair E thyl AcetateB-Good Ethyl ChlorideA-Excellent Ethyl EtherD-Severe EffectPage 4 of 10 Kelco E thylene BromideC-Fair Ethylene ChlorideD-Severe Effect E thylene ChlorohydrinB-Good Ethylene DiamineA-Excellent Ethylene DichlorideC-Fair E thylene GlycolA-Excellent Ethylene OxideC-Fair Fatty AcidsD-Severe Effect F erric ChlorideA-Excellent Ferric NitrateA-Excellent Ferric SulfateA-Excellent Ferrous SulfateA-Excellent Fluoboric AcidA-Excellent FluorineA-Excellent Fluosilicic AcidA-Excellent Formaldehyde 100%A-Excellent Formaldehyde 40%A-Excellent Formic AcidA-Excellent F reon 113D-Severe Effect Freon 12B-Good Freon 22A-Excellent F reon TFD-Severe Effect Freonr 11D-Severe Effect Fuel OilsD-Severe Effect F uran ResinC-Fair FurfuralD-Severe Effect Gallic AcidB-Good Gasoline (high-aromatic)

10 D-Severe Effect Gasoline, leaded, Effect Gasoline, unleadedD-Severe Effect G elatinA-Excellent GlucoseA-Excellent Glue, GlycerinA-Excellent Glycolic AcidA-Excellent Grape JuiceA-Excellent GreaseD-Severe Effect HeptaneD-Severe Effect HexaneD-Severe Effect HoneyA-Excellent Hydraulic Oil (Petro)D-Severe Effect Hydraulic Oil (Synthetic)A-Excellent HydrazineA-Excellent H ydrobromic Acid 100%A-Excellent Hydrobromic Acid 20%A-Excellent Hydrochloric Acid 100%D-Severe Effect H ydrochloric Acid 20%A-Excellent Hydrochloric Acid 37%C-Fair Hydrocyanic AcidB-Good H ydrocyanic Acid (Gas 10%)