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Chemical Compatibility List, NOVATEC 825F, 925F and Premium
How To Use It
You can safely use this list, using the PxT values as the limits for your gasket applications where no limits are shown. If your gasket application has an unusually high percentage of a harsh chemical, we recommend you review your gasket application data with us first.

Pressure x Temperature = PxT value. The pressure x the temperature of your application should not exceed the PxT values below. Your application's maximum temperature and pressure cannot exceed the limits of our materials.

PxT Values

Thickness 1/32" 1/16" 3/32"
NOVATEC 825F 400,000 350,000 210,000
NOVATEC 925F 600,000 600,000 260,000
For 1/8" thick applications, a PxT value of 210,000 for the 825F and 260,000 for the 925F can be used when the gasket has a minimum flange width of 1.25". Remember thicker is not better. As in all compressed sheet the PxT values decrease significantly as the thickness increases.
Chemicals Not Listed Or Shown To Be Incompatible
Chemicals not listed are not necessarily incompatible with this sheet. Application criteria could alter our recommendations where we show limits. So please phone us at 800 825 0031 with your gasket application data.
Fluids Fluids Fluids Fluids Fluids
Acetic Acid  Barium Hydroxide  Chloric Acid  Dichloro Acetic Acid  Fatty Acids 
Acetic Ester  Beer  Chlorinated Lime  Dichloro Acetic Acid Methane  Fatty Alkyl Sulfonate 
Acetic Acid Anhydride  Benzaldehyde  Chlorine  Dichloro Ethane  Fertilizing Salts 
Acetic Acid Butylacetate  Benzene Chlorine Water  Dichloro Benzene  Fluorine 
Acrylic Acid  Benzine  Chloromethane  Dichloro Diflouro Methane  Fluorosilicic Acid 
Acrylic Ethylester  Benzoic Acid  Chloro Ethane  Dichloro Methane  Formaldehyde 
Acrylonitrile  Benzyl Alcohol  Chloro Ethanol  Diethylamine  Formalin 
Adipic Acid  Borax  Chloracetic Acid  Diglycolic Acid  Formamide 
Allyl Alcohol  Boric Acid  Chloro Benzene  Diisobutylketone  Formic Acid 
Aluminum Chloride  Bromine Water  Chloroform  Diisopropylester  Freon 113 
Aluminum Sulfate  Butadiene  Chlorsulfon Acid  Dimethylamine  Frigen 12 
Amino Benzene  Butane  Chrome Alum  Dimethylformamide  Fruit Juice 
Ammonia  Butane Dioic Acid  Chromic Acid  Dinonylphtalate  Fuel 
Ammonium Acetate  Butanediol  Citric Acid  Dioctylphtalate  Fuel Oil 
Ammonium Carbonate  Butanoic Acid  Coconut Oil  Dioxan  Furfural 
Ammonium Chloride  Butanol  Coke Oven Gas  Epoxyethane  Furfuryl Alcohol 
Ammonium Hydrofluoride  Butylene Glycol  Common Salt  Expoxypropane  Furfuryl Aldehyde 
Ammonium Hydroxide  Butyl Ethanate  Copper Salt  Ethanol  Furol 
Ammonium Nitrate  Calcium Chloride  Croton Aldehyde  Ethyl Alcohol  Gelatine 
Ammonium Phosphate  Calcium Hydroxide  Cyclohexanole  Ethyl Benzene  Gelatine Salt
Ammonium Sulfate  Calcium Hypochlorite  Cyclohexanon  Ethyl Acetate  Glucose 
Ammonium Sulfide  Calcium Nitrate  Cyclohexane  Ethyl Chloride  Glycerol 
Amyl Acetate  Carbon Dichloride Oxide  Detergent  Ethylene Ether  Glycine 
Amyl Alcohol  Carbon Dioxide  Dextrine  Ethylene Chlorhydrin  Glycolic Acid 
Aniline  Carbon Disulfide  Diamine  Ethylene Diamine  Glycol 
Aniline Hydrochloride  Carbon Tetrachloride  Dibutyl Phtalate  Ethylene Dichloride  Heat Carrier Oil 
Arsenic Acid  Carbonic Acid  Dibutyl Sebacate  Ethylene Glycol  Heptane 
Acetone  Chlophen  Dibutylester  Ethylene Oxide  Household Ammonia 
Fluids Fluids Fluids Fluids Fluids
Hydrazine  Oil #3  Propane Diol  Sodium Carbonate  Tetrachloroethylene 
Hydrosulfite  Oleic Acid  Propane Triol  Sodium Chlorate  Tetraethyl Lead 
Hydroxylamine Sulfate  Oxalic Acid  Propanol  Sodium Chloride  Tetrahydrofuran 
Hydrogen  Oxygen  Propenoic Acid  Sodium Chlorite  Tetrahydronaphtalene 
Hydrogen Cyanide  Ozone  Propionic Acid  Sodium Chromate  Tetralin 
Hydrogen Peroxide  Palmitic Acid  Propylene Oxide  Sodium Disulfide  Tin Chloride 
Iron Salts  Paraffin  Pyridine  Sodium Dithionite  Toluene 
ISO Octane  Pentanol  Sodium Fluorite  Town Gas 
ISO Propanol  Petroleum Ether  Refrigerants Sodium Hydrogencarbonate  Tributylphosphate 
Kalinite  Phenol  R 11  Sodium Hydrogensulfate  Trichlorethane 
Kalium Cyanide  Phenylhydrazine  R 12  Sodium Hydrogensulfite  Trichlorethylene 
Kerosene  Phenylmethanol  R 13  Sodium Hypochlorite  Trichloromethane 
Lanolin  Phosgene  R 13 B1  Sodium Iodide  Trichloracetic Acid 
Lead Acetate  Phosphorus Chloride  R 14  Sodium Nitrate  Trichloroethylene 
Linseed Oil  Photographic Emulsion  R 22  Sodium Nitrite  Trichloromethane 
Magnesium Salt  Phtalic Acid  R 32  Sodium Oxalate  Trichloracetic Acid 
Maleic Acid  Pirkin Acid  R 112  Sodium Persulfate  Trichloroethylene 
Malic Acid  Potash  R 113  Sodium Phosphate Trichlortrifluorethane 
Mercury  Potash Lye  R 114  Sodium Sulfate  Triethanolamine
Methane  Potassium Bromate  R 116  Sodium Thiosulfate  Triethylamine 
Methanol  Potassium Bromate R 142b Sodium Silicate  Trioctylphosphate 
Methyl Acetate  Potassium Carbonate  R 152a Difluoroethane  Sodium Sulfide  Tricresylphosphate 
Methyl Alcohol  Potassium Chlorate  R 128  Sodium Sulfite  Urea 
Methyl Ethyl Ketone  Potassium Chloride  R 717 Ammonia  Spreader  Vaseline 
Methyl Amine  Potassium Chromate  Steam  Vegetable Fat 
Methyl Bromide  Potassium Hypochloride  Salmiak  Stearic Acid  Vegetable Oil 
Methyl Chloride  Potassium Iodide  Saltpetre/nitre  Succinic Acid  Vinyl Acetate 
Methylene Dichloride  Potassium Nitrate  Slaked Lime  Sucrose  Vinylchloride 
Monochloro Acetic Acid  Potassium Perchlorate  Soda  Sugar  Xylene 
Naphthalene  Potassium Permanganate  Sodium Acetate  Sulphur dioxide  Zinc Salts 
Nickel Salts  Potassium Persulfate  Sodium Benzoate  Sulphur Acid 
Nitro Benzene  Propagryl Alcohol  Sodium Bromate  Tartaric Acid 
Oil of Turpentine  Propane  Sodium Bromide  Tetrachlorethane 
Fluids Limits Fluids Limits
Concentration Temperature Concentration Temperature
Aqua Regia  68°F  Nitric Acid  < 10%  150°F 
Hydrobromic Acid  < 1%  400°F Nitric Acid  max. 15%  100°F 
Hydrobromic Acid  < 5%  200°F Nitrous Vitriol Gas max. 15%  100°F 
Hydrobromic Acid  < 10%  150°F  Perchloric Acid  < 10%  150°F 
Hydrobromic Acid  > 15%  100°F  Perchloric Acid  max. 15%  100°F 
Hydrochloric Acid < 1%  400°F Phoshporic Acid  < 1%  400°F 
Hydrochloric Acid < 5%  200°F Phoshporic Acid  < 5%  200°F
Hydrochloric Acid < 10%  150°F  Phoshporic Acid  < 10%  150°F
Hydrochloric Acid  > 15%  100°F  Sodium Hydroxide  < 1%  400°F
Hydrofluoric Acid  < 1%  400°F  Sodium Hydroxide  < 5% 200°F 
Hydrofluoric Acid  < 5%  200°F  Sodium Hydroxide  < 10%  150°F 
Hydrofluoric Acid  < 10%  150°F  Sodium Hydroxide  max. 15% 100°F
Hydrofluoric Acid  > 15%  100°F  Sulphur Acid  < 1%  400°F 
Hydrogen Chloride dry  Sulphur Acid  < 5%  200°F
Nitric Acid  < 1%  400°F  Sulphur Acid  < 10% 150°F 
Nitric Acid  < 5%  200°F  Tannic Acid  max. 15%  100°F 
The temperature up to which a gasket functions satisfactorily depends on the media, internal pressure and flange loading. The figures shown should be regarded as maximum values. 

Sealing the operating pressure depends not only on the gasket material but also on the flange assembly procedure. The values shown are for guidance only. The following factors are of great influence: type of flange, available gasket stress, the flange assembly, working pressure, quality of mating surfaces and the media.

Warning: Properties/applications shown throughout this brochure are typical. The ASTM classification numbers and accompanying typical values are based on ASTM testing of .031" thick material, and values for other thickness may vary. The above application list is intended only as a guide, and Frenzelit recommends that testing be performed in your application prior to approval. Failure to select the proper sealing products or improper installation could result in property damage and/or serious personal injury. Please call your sales representative for more information. 

Phelps Industrial Products, Inc., 6300 Washington Boulevard, Elkridge, Maryland 21075-5397