Um dos grandes motivadores para se utilizar um rolamento de aço inox, que é mais caro que o comum, é aumentar a durabilidade da peça. Muitas vezes o que causa o desgaste da peça não é o uso em si, mas os elementos químicos que entram em contato com o aço:
- Molhos da indústria alimentícia
- Soluções químicas
- Soluções para limpar equipamentos médicos
- Água
- Entre inúmeras possibilidades.
A tabela a seguir está com os nomes em inglês e foi retirada do seguinte arquivo: Tabela de Resistência.
Não nos responsabilizamos por qualquer ação tomada a partir do que é apresentado aqui. Cada pessoa/indústria deve analisar, testar e verificar o que faz sentido para sua situação.
A tabela a seguir indica a resistência química dos materiais, quando em contato com diferentes soluções.
Exemplo:
O aço inox 440 sofre razoavelmente no contato com ácido lático, mas o inox 302 e o 304 não sofrem com esse ácido.
E o aço inox 420? Sua composição química é bem similar ao do 440 que pode, então, servir como base.
Outra coisa a se lembrar, os rolamentos em aço inox não são sempre 100% em aço inox. Se tiver uma vedação, talvez essa vedação seja de borracha, ou teflon. A lubrificação pode atrapalhar ou ajudar na resistência química. O separador pode ser de poliamida e não de aço. Ou seja, cada aplicação deve ser estudada com cuidado - e/ou realizar testes e ver o que funciona melhor.
Legenda
Efeitos químicos:
- A: Sem efeitos - Excelente
- B: Efeito pequeno - Bom
- C: Efeito moderado - Regular
- D: Efeito severo - Não recomendado
- ’- : Sem informações
Observações:
- (1) P.V.C. — Satisfactory to 72° F.
- (2) Polypropylene — Satisfactory to 72° F.
- (3) Polypropylene — Satisfactory to 120° F.
- (4) Buna-N — Satisfactory for “O” Rings
- (5) Polyacetal — Satisfactory to 72° F.
- (6) Ceramag — Satisfactory to 72° F.
Substância | Inox 302 | Inox 304 | Inox 316 | Inox 440 |
---|---|---|---|---|
Acetaldehyde (5) | A | A | A | - |
Acetamide | - | B | A | - |
Acetate Solvent (2) | A | B | A | B |
Acetic Acid, Glacia (1) | - | B | A | A |
Acetic Acid 20% | - | B | A | - |
Acetic Acid 80% | - | B | A | - |
Acetic Acid | - | B | A | B |
Acetic Anhydride | B | A | A | B |
Acetone (6) | A | A | A | B |
Acetyl Chloride | - | C | A | - |
Acetylene (2) | A | A | A | A |
Acrylonitrile | A | A | C | - |
Alcohols: Amyl | A | A | A | - |
Benzyl | - | A | A | - |
Butyl | - | A | A | - |
Diacetone (2) | A | A | A | - |
Ethyl | - | A | A | A |
Hexyl | - | A | A | - |
Isobutyl | - | A | A | - |
Isopropyl | - | A | A | - |
Methyl (6) | - | A | A | A |
Octyl | - | A | A | - |
Propyl | - | A | A | - |
Aluminum Chloride 20% | - | D | C | D |
Aluminum Chloride | C | D | C | - |
Aluminum Fluoride | - | D | C | D |
Aluminum Hydroxide (6) | - | A | A | A |
Aluminum Potassium Sulfate (Alum), 10% | - | A | - | - |
Aluminum Potassium Sulfate (Alum), 100% | - | D | A | B |
Aluminum Sulfate | - | C | C | A |
Amines | A | A | A | - |
Ammonia 10% | - | - | A | - |
Ammonia, Anhydrous | A | B | A | A |
Ammonia, Liquids | - | A | A | A |
Ammonia, Nitrate | - | A | A | A |
Ammonium Bifluoride | - | C | A | - |
Ammonium Carbonate | B | A | A | A |
Ammonium Casenite | - | - | A | - |
Ammonium Chloride | C | A | C | A |
Ammonium Hydroxide | A | A | A | A |
Ammonium Nitrate | A | A | A | A |
Ammonium Oxalate | - | A | A | A |
Ammonium Persulfate | - | A | A | A |
Ammonium Phosphate, Dibasic | B | A | A | A |
Ammonium Phosphate, Monobasic | - | A | A | A |
Ammonium Phosphate, Tribasic | B | A | A | A |
Ammonium Sulfate | C | D | B | A |
Ammonium Thio-Sulfate | - | - | A | - |
Amyl-Acetate | B | A | A | C |
Amyl Alcohol | - | A | A | - |
Amyl Chloride | - | C | B | - |
Aniline | B | A | A | A |
Antifreeze | - | A | A | - |
Antimony Trichloride | - | D | D | - |
Aqua Regia (80%, HCL, 20%, HNO) | - | D | D | - |
Arochlor 1248 | - | - | - | - |
Aromatic Hydrocarbons | - | - | A | - |
Arsenic Acid | B | A | A | - |
Asphalt | - | B | A | - |
Barium Carbonate | B | A | A | A |
Barium Chloride | C | D | A | A |
Barium Cyanide | - | - | A | - |
Barium Hydroxide | B | C | A | A |
Barium Nitrate | - | A | A | - |
Barium Sulfate | B | A | A | A |
Barium Sulfide | B | A | A | - |
Beer (2) (Cerveja) | A | A | A | - |
Beet Sugar Liquids | A | A | A | - |
Benzaldehyde (3) | A | A | A | - |
Benzene (2) | B | A | A | A |
Benzoic Acid (2) | B | A | A | A |
Benzol | - | A | A | - |
Borax (Sodium Borate) | - | A | A | A |
Boric Acid | B | A | A | A |
Brewery Slop | - | - | A | - |
Bromine (2) (wet) | D | D | D | D |
Butadiene | A | A | A | - |
Butane (2) (1) | A | A | A | - |
Butanol | - | A | A | - |
Butter (Manteiga) | - | B | A | - |
Buttermilk | A | A | A | A |
Butylene | A | B | A | - |
Butyl Acetate (1) | - | - | C | - |
Butyric Acid (1) | B | B | A | A |
Calcium Bisulfate | C | D | A | - |
Calcium Bisulfide | - | - | B | - |
Calcium Bisulfite | - | B | A | - |
Calcium Carbonate | B | A | A | A |
Calcium Chlorate | - | B | A | - |
Calcium Chloride | C | A | D | C |
Calcium Hydroxide | B | A | A | - |
Calcium Hypochlorite | D | D | C | C |
Calcium Sulfate | B | A | A | A |
Calgon | - | A | A | - |
Cane Juice (2) | - | A | A | - |
Carbolic Acid (See Phenol) | - | - | - | - |
Carbon Bisulfide (2) | B | A | A | A |
Carbon Dioxide (wet) | - | A | A | - |
Carbon Disulfide (2) | - | B | A | - |
Carbon Monoxide | - | A | A | - |
Carbon Tetrachloride (2) (1) | B | B | B | A |
Carbonated Water | B | A | A | A |
Carbonic Acid | B | A | B | A |
Catsup | - | A | A | A |
Chloracetic Acid (2) | D | D | D | D |
Chloric Acid | - | D | D | - |
Chlorinated Glue | - | A | A | - |
Chlorine, Anhydrous Liquid | - | D | D | D |
Chlorine (dry) | B | A | A | - |
Chlorine Water | D | - | D | - |
Chlorobenzene (Mono) | A | A | A | - |
Chloroform | A | A | A | A |
Chlorosulfonic Acid (1) | D | D | - | D |
Chlorox (Bleach) | - | A | A | - |
Chocolate Syrup (Calda de chocolate) | - | A | A | - |
Chromic Acid 5% | - | A | A | B |
Chromic Acid 10% | - | B | - | - |
Chromic Acid 30% | - | B | - | - |
Chromic Acid 50% | C | B | B | - |
Cider | - | A | A | A |
Citric Acid | - | A | A | A |
Citric Oils | - | A | A | - |
Coffee (Café) | A | A | A | A |
Copper Chloride | C | D | D | B |
Copper Cyanide | - | A | A | A |
Copper Fluoborate | - | D | D | - |
Copper Nitrate | B | A | A | B |
Copper Sulfate (5% Solution) | - | A | A | A |
Copper Sulfate | B | B | - | - |
Cream | - | A | A | - |
Cresols(2) | - | A | A | - |
Cresylic Acid | B | A | A | - |
Cyclohexane | - | A | - | - |
Cyanic Acid | - | A | - | - |
Detergents | - | A | A | - |
Dichlorethane | - | A | A | - |
Diesel Fuel | A | A | A | - |
Diethylamine | A | A | - | - |
Diethylene Glycol | - | A | - | - |
Diphenyl Oxide | - | A | - | - |
Dyes | - | A | A | - |
Epsom Salts (Magnesium Sulfate) | B | A | A | A |
Ethane | A | A | - | - |
Ethanolamine | - | A | A | - |
Ether(3) | A | A | A | A |
Ethyl Acetate(2) | - | A | A | - |
Ethyl Chloride | - | A | A | A |
Ethyl Sulfate | - | D | - | - |
Ethylene Chloride(2) | - | A | A | - |
Ethylene Dichloride | - | A | A | - |
Ethylene Glycol(4) | - | A | A | - |
Ethylene Oxide | - | - | A | - |
Fatty Acids | - | A | A | - |
Ferric Chloride | - | D | D | D |
Ferric Nitrate | - | A | A | A |
Ferric Sulfate | - | A | C | A |
Ferrous Chloride | - | D | D | - |
Ferrous Sulfate | B | A | C | - |
Fluoboric Acid | - | D | B | - |
Fluorine | D | D | D | - |
Fluosilicic Acid | - | - | B | - |
Formaldehyde 40% | - | - | A | - |
Formaldehyde | A | A | A | - |
Formic Acid6 | C | A | B | B |
Fruit Juice (Suco de fruta) | A | A | A | A |
Fuel Oils | A | A | A | - |
Furan Resin | - | A | A | - |
Furfural(1) | A | A | A | - |
Gallic Acid | B | A | A | - |
Gasoline(1) (4) | A | A | A | A |
Gelatin | A | A | A | A |
Glucose (Glicose) | A | - | A | - |
Glue P.V.A.(1) | B | B | A | - |
Glycerine | A | A | A | A |
Cycolic Acid | - | - | - | - |
Gold Monocyanide | - | - | A | - |
Grape Juice (Suco de uva) | - | A | A | - |
Grease(4) | A | A | A | - |
Heptane(1) | A | - | A | - |
Hexane(1) | A | A | A | - |
Honey | - | A | A | - |
Hydraulic Oils (Petroleum)(1) | A | A | A | - |
Hydraulic Oils (Synthetic)(1) | - | A | A | - |
Hydrazine | - | A | A | - |
Hydrobromic Acid 20% | - | - | D | - |
Hydrobromic Acid(4) | D | D | D | D |
Hydrochloric/Muratic Acid (Dry gas) | D | C | A | - |
Hydrochloric/Muratic Acid (20%)(4) | - | D | D | D |
Hydrochloric/Muratic Acid (37%)(4) | - | D | D | D |
Hydrochloric/Muratic Acid (100%) | - | D | D | - |
Hydrocyanic Acid | A | A | A | C |
Hydrocyanic Acid (Gas 10%) | - | D | D | - |
Hydrofluoric Acid (20%)(1) | - | D | D | D |
Hydrofluoric Acid (75%)(1) (2) | - | C | D | - |
Hydrofluoric Acid 100% | D | D | D | - |
Hydrofluosilicic Acid (20%) | - | D | D | - |
Hydrofluosilicic Acid | - | D | D | - |
Hydrogen Gas | A | A | A | - |
Hydrogen Peroxide 10% | - | C | C | - |
Hydrogen Peroxide 30% | - | - | B | - |
Hydrogen Peroxide | - | A | B | A |
Hydrogen Sulfide, Aqueous Solution | - | D | A | C |
Hydrogen Sulfide (dry) | A | C | A | - |
Hydroxyacetic Acid (70%) | - | - | - | - |
Ink | A | A | A | - |
Iodine | - | D | D | D |
Iodine (In Alcohol) | - | - | B | - |
Iodoform | B | C | A | - |
Isotane(2) | - | - | - | - |
Isopropyl Acetate | - | - | B | - |
Isopropyl Ether(2) | A | - | A | - |
Jet Fuel (JP#, JP4, JP5) | A | A | A | - |
Querosene(2) | A | A | A | A |
Ketones | A | A | A | - |
Lacquers | A | A | A | - |
Lacquer Thinners | - | - | A | - |
Lactic Acid | A | A | B | C |
Lard | B | A | A | A |
Latex | - | A | A | - |
Lead Acetate | B | A | A | - |
Lead Sulfamate | - | - | - | - |
Ligroin(3) | - | - | A | - |
Lime | - | A | A | - |
Lubricants | - | A | A | - |
Magnesium Carbonate | - | A | A | A |
Magnesium Chloride | B | B | B | A |
Magnesium Hydroxide | A | A | A | - |
Magnesium Nitrate | - | A | A | A |
Magnesium Oxide | - | A | A | - |
Magnesium Sulfate | B | B | A | - |
Maleic Acid | C | A | A | A |
Maleic Anhydride | - | - | - | - |
Malic Acid | B | A | A | - |
Mash | - | A | A | - |
Mayonnaise (Maionese) | A | A | A | - |
Melamine | - | D | D | - |
Mercuric Chloride (Dilute Solution) | D | D | D | D |
Mercuric Cyanide | A | A | A | - |
Mercury (Mercúrio) | A | A | A | A |
Methanol (See Alcohol Methyl) | - | - | - | - |
Methyl Acetate | A | - | A | - |
Methyl Acrylate | - | - | - | - |
Methyl Acetone | A | - | A | - |
Methyl Alcohol 10% | A | - | A | - |
Methyl Bromide | - | - | - | - |
Methyl Butyl Ketone | - | - | A | - |
Methyl Cellosolve | - | - | - | - |
Methyl Chloride | - | A | A | - |
Methyl Dichloride | - | - | - | - |
Methyl Ethyl Ketone | - | A | A | - |
Methyl Isobutyl Ketone2 | - | - | A | - |
Methyl Isopropyl Ketone | - | - | A | - |
Methyl Methacrylate | - | - | - | - |
Methylamine | A | - | A | - |
Methylene Chloride | A | A | A | - |
Milk (Leite) | A | A | A | A |
Molasses | A | A | A | A |
Mustard (Mostarda) | A | A | A | A |
Naphtha | A | A | A | A |
Naphthalene | B | A | B | - |
Nickel Chloride | - | A | B | - |
Nickel Sulfate | B | A | B | - |
Nitric Acid (10% Solution) | A | A | A | A |
Nitric Acid (20% Solution) | - | A | A | A |
Nitric Acid (50% Solution) | - | A | A | A |
Nitric Acid (Concentrated Solution) | - | D | B | A |
Nitrobenzene(2) | B | A | B | - |
Óleos: Aniline | - | A | A | - |
Anise | - | A | A | - |
Bay | - | A | A | - |
Bone | - | A | A | - |
Castor | - | A | A | - |
Cinnamon | - | A | A | - |
Citric | - | A | A | - |
Clove | - | A | A | - |
Coconut | - | A | A | - |
Cod Liver | - | A | A | - |
Corn | - | A | A | A |
Cotton Seed | B | A | A | A |
Creosote2 | - | A | A | - |
Diesel Fuel (2D, 3D, 4D, 5D) | - | A | A | - |
Fuel (1, 2, 3, 5A, 5B, 6) | - | A | A | - |
Ginger | - | A | A | - |
Hydraulic (See Hydraulic) | - | - | - | - |
Lemon | - | A | A | - |
Linseed | - | A | A | A |
Mineral | A | A | A | A |
Olive | A | A | A | - |
Orange | - | A | A | - |
Palm | - | A | A | - |
Peanut3 | - | A | A | - |
Peppermint2 | - | A | A | - |
Pine | A | A | A | - |
Rape Seed | - | A | A | - |
Rosin | - | A | A | - |
Sesame Seed | - | A | A | - |
Silicone | - | A | A | - |
Soybean | - | A | A | - |
Sperm | - | A | A | - |
Tanning | - | A | A | - |
Turbine | - | A | A | - |
Oleic Acid | B | A | A | B |
Oleum 25% | - | - | - | - |
Oleum | B | - | A | - |
Oxalic Acid (cold) | C | A | B | A |
Paraffin | A | A | A | A |
Pentane | A | C | C | - |
Perchloroethylene(2) | B | A | A | - |
Petrolatum | A | - | A | - |
Phenol 10% | B | A | A | - |
Phenol (Carbolic Acid) | B | A | A | A |
Phosphoric Acid (40% Solution) | - | B | A | A |
Phosphoric Acid (40% - 100% Solution) | - | C | B | B |
Phosphoric Acid (Crude) | - | D | C | C |
Phosphoric Anhydride (Dry or Moist) | - | A | A | - |
Phosphoric Anhydride (Molten) | - | A | A | - |
Photographic (Developer) | - | C | A | C |
Phthalic Anhydride | B | A | B | - |
Picric Acid | B | A | A | - |
Plating Solutions: Antimony Plating 130° F | - | - | A | - |
Arsenic Plating 110° F | - | - | A | - |
Brass Plating: Regular Brass Bath 100° F | - | - | A | - |
High Speed Brass Bath 110° F | - | - | A | - |
Bronze Plating: Copper Cadmium Bronze Bath R.T. | - | - | A | - |
Copper-Tin Bronze Bath 160° F | - | - | A | - |
Copper-Zinc Bronze Bath 100° F | - | - | A | - |
Cadmium Plating: Cyanide Bath 90° F | - | - | A | - |
Fluoborate Bath 100° F | - | - | A | - |
Chromium Plating: Chromic-Sulfuric Bath 130° F | - | - | C | - |
Fluosilicate Bath 95° F | - | - | C | - |
Fluoride Bath 130° F | - | - | D | - |
Black Chrome Bath 115° F | - | - | C | - |
Barrel Chrome Bath 95° F | - | - | D | - |
Copper Plating (Cyanide): Copper Strike Bath 120° F | - | - | - | - |
Rochelle Salt Bath 150° F | - | - | A | - |
High Speed Bath 180° F | - | - | A | - |
Copper Plating (Acid): Copper Sulfate Bath R.T. | - | - | D | - |
Copper Fluoborate Bath 120° F | - | - | D | - |
Copper (Misc.): Copper Pyrophosphate 140° F | - | - | A | - |
Copper (Electroless) 140° F | - | - | - | - |
Gold Plating: Cyanide 150° F | - | - | A | - |
Neutral 75° F | - | - | C | - |
Acid 75° F | - | - | C | - |
Indium Sulfamate Plating R.T. | - | - | C | - |
Iron Plating: Ferrous Chloride Bath 190° F | - | - | D | - |
Ferrous Sulfate Bath 150° F | - | - | C | - |
Ferrous Am. Sulfate Bath 150° F | - | - | C | - |
Sulfate-Chloride Bath 160° F | - | - | D | - |
Fluoborate Bath 145° F | - | - | D | - |
Sulfamate 140° F | - | - | D | - |
Lead Fluoborate Plating | - | - | C | - |
Nickel Plating: Watts Type 115 - 160° F | - | - | C | - |
High Chloride 130 - 160° F | - | - | C | - |
Fluoborate 100 - 170° F | - | - | C | - |
Sulfamate 140° F | - | - | C | - |
Electroless 200° F | - | - | - | - |
Rhodium Plating 120° F | - | - | D | - |
Silver Plating 80 - 120° F | - | - | A | - |
Tin-Fluoborate Plating 100° F | - | - | C | - |
Tine-Lead Plating 100° F | - | - | C | - |
Zinc Plating: Acid Chloride 140° F | - | - | D | - |
Acid Sulfate Bath 150° F | - | - | C | - |
Acid Fluoborate Bath R.T. | - | - | - | C |
Alkaline Cyanide Bath R.T. | - | - | - | A |
Potash | - | A | - | A |
Potassium Bicarbonate | - | A | - | B |
Potassium Bromide | A | A | - | B |
Potassium Carbonate | B | A | - | A |
Potassium Chlorate | B | A | A | A |
Potassium Chloride | C | A | A | B |
Potassium Chromate | - | - | B | B |
Potassium Cyanide Solutions | B | A | B | A |
Potassium Dichromate | B | A | A | A |
Potassium Ferrocyanide | B | A | - | A |
Potassium Hydroxide (50%) | A | B | B | B |
Potassium Nitrate | B | A | B | A |
Potassium Permanganate | B | A | B | B |
Potassium Sulfate | B | A | B | B |
Potassium Sulfide | A | A | - | A |
Propane (Liquified)(1) (2) | A | A | - | A |
Propylene Glycol | B | B | - | A |
Pyridine | - | C | - | B |
Pyrogallic Acid | B | A | A | A |
Rosins | A | A | A | A |
Rum | - | A | - | A |
Rust Inhibitors | - | A | - | A |
Salad Dressing | - | A | - | A |
Sea Water (Água do mar) | A | A | C | A |
Shellac (Bleached) | A | A | - | A |
Shellac (Orange) | A | A | - | A |
Silicone | - | B | - | A |
Silver Bromide | - | C | C | B |
Silver Nitrate | B | A | B | A |
Soap Solutions(1) | A | A | A | A |
Soda Ash (See Sodium Carbonate) | - | - | - | - |
Sodium Acetate | B | A | A | B |
Sodium Aluminate | B | - | - | A |
Sodium Bicarbonate | B | A | A | A |
Sodium Bisulfate | A | A | - | A |
Sodium Bisulfite | - | A | - | A |
Sodium Borate | B | A | - | A |
Sodium Carbonate | B | A | B | B |
Sodium Chlorate | B | A | - | A |
Sodium Chloride | B | A | C | B |
Sodium Chromate | A | A | A | - |
Sodium Cyanide | B | A | - | A |
Sodium Fluoride | B | C | - | C |
Sodium Hydrosulfite | - | - | - | - |
Sodium Hydroxide/Caustic Soda (20%) | - | A | A | A |
Sodium Hydroxide/Caustic Soda (50%) | - | A | B | - |
Sodium Hydroxide/Caustic Soda (80%) | - | A | D | - |
Sodium Hypochlorite/Bleach(3) (to 20%) | D | - | D | - |
Sodium Hypochlorite/Bleach | - | A | A | - |
Sodium Hyposulfate | A | - | A | - |
Sodium Metaphosphate(2) | A | - | A | - |
Sodium Metasilicate | B | A | A | A |
Sodium Nitrate | B | - | C | - |
Sodium Perborate | B | A | A | - |
Sodium Peroxide | - | A | A | - |
Sodium Polyphosphate (Mono, Di, Tribasic) | B | A | B | A |
Sodium Silicate | B | A | A | C |
Sodium Sulfate | B | A | B | - |
Sodium Sulfide | - | C | C | - |
Sodium Sulfite | - | - | A | - |
Sodium Tetraborate | A | A | A | - |
Sodium Thiosulphate (”Hypo”) | - | A | A | - |
Sorghum | - | A | A | - |
Soy Sauce (Shoyu) | D | D | D | - |
Stannic Chloride | - | - | A | - |
Stannic Fluoborate | - | - | A | - |
Stannous Chloride | D | D | C | - |
Starch (amido) | B | A | A | - |
Stearic Acid(2) | B | A | A | A |
Stoddard Solvent | A | A | A | A |
Styrene | A | A | A | - |
Sugar (Liquids) | A | A | A | A |
Sulfate Liquors | - | C | C | - |
Sulfur Chloride | - | D | D | D |
Sulfur Dioxide(2) | - | A | A | C |
Sulfur Dioxide (dry) | A | A | A | - |
Sulfur Trioxide (dry) | A | A | C | - |
Sulfuric Acid (to 10%) | - | D | C | C |
Sulfuric Acid (10% - 75%)(2) | - | D | D | D |
Sulfuric Acid (75% - 100%) | - | - | D | - |
Sulfurous Acid | C | C | B | C |
Sulfuryl Chloride | - | - | - | - |
Syrup (Xarope/calda) | - | A | A | A |
Tallow | - | A | A | - |
Tannic Acid | B | A | A | A |
Tanning Liquors | - | A | A | - |
Tartaric Acid | B | A | B | B |
Tetrachlorethane | - | - | A | - |
Tetrahydrofuran | - | A | A | - |
Toluene, Toluol(3) | A | A | A | - |
Tomato Juice - Suco de Tomate | A | A | A | - |
Trichlorethane | - | C | A | - |
Trichlorethylene(2) | B | A | A | - |
Trichloropropane | - | - | A | - |
Tricresylphosphate | - | - | A | - |
Triethylamine | - | - | - | - |
Turpentine(3) | B | A | A | - |
Urine (Urina) | - | A | A | - |
Vegetable Juice (Suco de vegetais) | - | A | A | - |
Vinegar (vinagre) | A | A | A | A |
Varnish (Use Viton for Aromatic) | A | A | A | A |
Water, Acid, Mine | - | A | A | - |
Water, Distilled, Lab Grade (7) (água destilada) | - | A | A | - |
Water, Fresh (Água doce) | A | A | A | - |
Water, Salt (Água salgada) | - | A | A | - |
Weed Killers | - | A | A | - |
Whey | - | A | A | - |
Whiskey and Wines (Whisky e vinhos) | A | A | A | A |
White Liquor (Pulp Mill) | - | A | A | - |
White Water (Paper Mill) | - | A | A | - |
Xylene(2) | A | A | A | - |
Zinc Chloride | D | D | B | B |
Zinc Hydrosulphite | - | - | A | - |
Zinc Sulfate | B | A | A | A |