 | Action A - little or none, B - moderate, C - strong, S - unknown |
| Natural rubber | Buna-N (NBR) | EPDM | Hypalon |
Magnesium Carbonate | A | A | A | A |
Magnesium Chloride | A | A | A | A |
Magnesium Hydroxide | A | A | A | A |
Magnesium Nitrate | A | A | A | A |
Magnesium Sulphate | A | A | A | A |
Magnesium Sulphide | S | S | A | A |
Magnesium Sulphite | S | S | A | A |
Manganese Sulphate | A | A | A | A |
Margarine Oil | C | A | C | C |
Mercaptane | C | C | C | C |
Mercury | A | A | A | A |
Mercurychloride | A | B | A | A |
Mercurycyanide | A | B | A | A |
Methanol(=Methylalcohol) | A | A | A | A |
Methylene-Chloride | C | C | C | C |
Methyl-Acetate | B | C | B | C |
Methyl-Acetone | B | B | C | C |
Methyl-Aceto-Acetate | C | C | C | C |
Methyl-Amine | C | C | C | C |
Methyl-Amyl-Acetate | C | C | C | C |
Methyl-Amyl-Carbinol | C | C | C | C |
Methyl-Aniline | C | C | C | C |
Methyl-Bromide | C | C | C | C |
Methyl-Butyl-Ketone | B | B | B | C |
Methyl-Butyrate | C | C | C | C |
Methyl-Cellosove | C | C | C | C |
Methyl-Chloride | C | C | C | C |
Methyl-Ethyl-Ketone | C | C | C | C |
Methyl-Formate | C | C | C | C |
Methyl-Iodide | C | C | C | C |
Methyl-Isobutyl-Carbinol | C | C | C | C |
Methyl-Isobutyrate | C | C | C | C |
Methyl-Isopropyl-Ketone | C | C | C | C |
Methyl-Methacrylate | C | C | C | C |
Methyl-Oleate | C | C | C | C |
Methyl-Propionate | C | C | C | C |
Methyl-Salicylate | C | C | C | C |
Metyl-Isobutyl-Ketone | B | B | C | C |
Milk | B | A | B | A |
Mineral Oil | C | A | C | A |
Molasses | A | A | A | A |
Mono Sodium Glutamate | C | A | A | B |
Monobrominebenzol | C | C | C | C |
Monochlorobenzene | C | C | C | C |
Monochloro-Aniline | C | C | C | C |
Monochloro-Difluoro-Methane | C | C | C | C |
Monochloro-Trifluoro-Methane | C | C | C | C |
Mono-Ethanol-Aminen | C | C | C | C |
Motor Oil | C | B | C | B |
Muriatic Acid | | | | |
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