Vastsky are chemically resistant to the following solvents, oils and chemicals.
This is an abbreviated table.
The following ratings are used to describe the general performance of Vastsky when immersed at ambient temperatures.
| A | Recommended – Little or no effect. | B | Minor to moderate effect. |
| C | Moderate to severe effect. | X | Not recommended. |
| Acetic Acid | C | Cyclohexane | B | Oleic Acid | B |
| Acetone | X | Ferric Chloride | A | Olive oil | A |
| Ammonia Hydroxide | A | FREON-12 ’54C’ | A | Oxygen – cold | A |
| Ammonium Nitrate | X | FREON-113 | B | Ozone | A |
| Ammonium Persulfate | X | Gasoline | A | Palmitic Acid | A |
| Animal Fats | A | Gelatin | A | Phosphoric Acid 20% | A |
| ASTM Oil#1 (70oC) | A | Glucose | A | Phosphoric Acid 45% | A |
| ASTM reference fuel | A | Glue | A | Potassium Chloride | A |
| Barium Chloride | A | Glycerin | A | Potassium Cupro Cyanide | A |
| Barium Hydroxide | A | Hydrochloric Acid (cold) 37% | X | Potassium Cyanide | A |
| Barium Sulfate | A | Hydrochloric Acod (hot) 37% | X | Potassium dichromate | A |
| Barium Sulfide | A | Hydrofluoric Acid conc. (cold) | X | Potassium nitrate | A |
| Borax | A | Hydrofluoric Acid conc. (hot) | X | Potassium sulphate | A |
| Boric Acid | A | Hydrogen Gas | A | Producer gas | A |
| Butane | A | Isopropyl Acetate | A | Radiation | A |
| Calcium Bisulphite | A | Kerosene | B | Soap solutions | A |
| Calcium Chloride | A | LPG | A | Sodium Chloride | A |
| Calcium Hydroxide | A | Magnesium Chloride | A | Sodium Hydroxide (20%) | B |
| Calcium Nitrate | A | Magnesium Hydroxide | A | Sodium phosphate | A |
| Calcium Sulfide | A | Mercury | A | Sodium sulfate | A |
| Carbon Dioxide | A | Mineral Oil | A | Sodium thiosulfate | A |
| Carbon Monoxide | A | Natural Gas | B | Stearic acid | A |
| Castor Oil | A | Nickel Sulfate | A | Sulphuric acid (dilute) | B |
| Catric Acid | A | Nitric Acid conc | X | Sulphuric acid (conc) | X |
| Copper Chloride | A | Nitric Acid Dilute | C | Sulphuric acid (20% oleum) | X |
| Copper Cyanide | A | Nitric Acid red fuming | X | Tannic acid (10%) | A |
| Copper Sulphate | A | Nitrogen | A | Tartaric acid | A |
| Cottonseed Oil | A | Octadecane | A | Toluene | C |