Web Catalogue update October 2019

HR INSTANT REPAIR TAPE INFORMATION 05 4542 NZ. pub. 05/16 © Chemical resistance Immediate Repair Tape HR has a good resistance to many chemicals, fluids and oils: • Dilute acids, alkalis: - whether hot or cold, have a negligible effect on silicones; • Concentrated acids and alkalis: Silicones are attacked by concentrated acids and alkalis, especially oxidising acids such as Sulfuric acid; • Polar liquids: short-chain alcohols and acetone cause very little swelling and may be used in appropriate applications; • Non-polar liquids: linear or cyclic hydrocarbons, aliphatic or aromatic mineral oils, gasoline etc. cause severe swelling. They can be used only to a very limited extent. The following table lists the effect of various chemicals on Instant Repair Tape HR if this is completely immersed for 336 hours and at room temperature or 49 °C: Chemical Concentration Duration of Test Room Temperature 49 °C Acetic Acid 5% 336 hours No effects No effects Acetic Acid 10% 336 hours No effects No effects Acetic Acid 20% 336 hours No effects No effects Acetic Acid concentrated 336 hours No effects Light clevage Acetone - 336 hours Light discolouration Light discolouration Ammonium Hydroxide 10% 336 hours No effects No effects Ammonium Hydroxide concentrated 336 hours Very light discolouration Very light discolouration Aviation Fuel - 336 hours Light discolouration, heavy swelling Not tested Gasoline - 336 hours Light discolouration, heavy swelling Not tested Boric Acid - 336 hours No effects No effects Calcium Chloride in Water 20% 336 hours No effects No effects Carbon Tetrachloride - 336 hours No effects No effects Diesel - 336 hours Light discolouration, heavy swelling Not tested Distilled Water - 336 hours No effects No effects Ethylene Glycol - 336 hours No effects No effects Fatty acids (Linseed Oil) - 336 hours Light discolouration, light swelling Light discolouration, light swelling Formic Acid 5% 336 hours No effects No effects Formic Acid 10% 336 hours No effects No effects Glycerine 336 336 hours Discolouration Not tested Hydraulic Fluid 336 336 hours Light discolouration, and light swelling Not tested Hydrochloric Acid 5% 336 hours No effects No effects Hydrochloric Acid 10% 336 hours No effects No effects Hydrochloric Acid 20% 336 hours Discolouration and light surface clevage Not tested Hydrochloric Acid concentrated 336 hours Discolouration and light surface clevage Not tested Hydrogen Peroxide 10% 336 hours No effects No effects Kerosene - 336 hours Light discolouration and moderate swelling Not tested Methyl Alcohol - 336 hours No effects No effects Methyl Ethyl Ketone - 336 hours Light discolouration and heavy swelling Not tested Methyl Isobutyl Ketone - 336 hours Light discolouration and heavy swelling Not tested Mineral Spirits - 336 hours Light discolouration and moderate swelling Not tested Engine Oil - 336 hours Light discolouration and softening Not tested Nitric Acid 5% 336 hours No effects No effects Nitric Acid 10% 336 hours Light discolouration and increased suppleness Light discolouration and increased suppleness Phosphoric Acid 50% 336 hours No efffects No effects Potassium Hydroxide Solution 20% 336 hours No effects Not tested Soda Solution 20% 336 hours No effects Not tested Sodium Hydroxide 50% 336 hours Surface appearance changed - extreme suppleness Not tested Sodium Hypochlorite 1% 336 hours No effects No effects Sulfuric Acid 5% 336 hours No effects No effects Sulfuric Acid 10% 336 hours Light discolouration and clevage Light discolouration and clevage Sulfuric Acid 25% 336 hours Discolouration and moderate surface clevage Not tested Sulfuric Acid 50% 336 hours Discolouration and heavy clevage Discolouration and heavy clevage Toluene - 336 hours Light discolouration and moderate swelling Not tested Trichloroethane - 336 hours Light discolouration and moderate swelling Not tested