While it is difficult to foresee all chemicals, chemical combinations, and environments to which RPI Royal Edge TPO Roofing Membrane may be subjected, the following information is suggested to help guide your decisions. The best means to determine whether a substance is compatible with the Royal Edge TPO membrane is a laboratory analysis which can take some time to perform. Some of the following factors affect the severity of a chemical in direct exposure to RPI Royal Edge TPO Roofing membrane. 1. Higher temperatures generally have a greater effect on severity of the chemical on the membrane. 2. The concentration of the chemical has a direct effect on degree of compatibility. Usually, the greater the dilution, the greater the potential for compatibility. 3. Occasional exposure to the chemical is typically less severe than continuous exposure. When roofs are severely contaminated with another substance, such as grease, oil or a pool of chemicals, the membrane will be affected in one way or another. It is not recommended to allow any contaminate to remain on the roof surface over time, as it will compromise the reflectivity of the membrane and allow dirt and foreign substances to build up. The following chart is suggested to rate the relative effects of the chemical on the RPI Royal Edge TPO Roofing membrane according to the following scale: A = Negligible effect B = Limited effect C = Extensive Absorption D = Extensive Attack ** May produce cracking in material under stress. -- No data available Note: When a concentration is not shown, the substance is pure or concentrated. Royal Edge Re-Flex TPO Membrane 1/5
Acetic acid (glacial) 97 A B Acetic acid 50 Acetic acid 40 Acetic acid 10 Acetone Acetophenone B B Acriflavine (2 soln in H 2 O) 2 Acrylic emulsions Aircraft exhaust gas & jet ( fully burned) (fumes Airport environment & gases) Aluminum chloride Aluminum fluoride Aluminum sulfate Alums (all types) Ammonia gas (dry) Ammonia (aqueous) 30 A -- Ammonium carbonate Ammonium chloride Ammonium fluoride 20 Ammonium hydroxide 10 Ammonium metaphosphate Ammonium nitrate Ammonium persulfate Ammonium sulfate Ammonium sulfide Ammonium thiocyanate Amyl acetate B C Amyl alcohol A B Amyl chloride C C Aniline Animal fat/grease A B Anisole B B Antimony chloride Aqua regia **C **C 80 to 110 Aviation gasoline ( octane) C D Aviation turbine fuel C D Barium carbonate Barium chloride Barium hydroxide Barium sulfate Barium sulfide Beer Benzene C D Benzoic acid Benzyl alcohol Bismuth carbonate Borax Boric acid Brine Bromine liquid D -- Bromine water **C -- Butyl acetate C C Butyl alcohol A -- Calcium carbonate Calcium chlorate Calcium chloride 50 Calcium hydroxide Calcium hydrochlorite bleach 20 A B Calcium nitrate Calcium phosphate 50 A -- Calcium sulfate Calcium sulfite Carbon dioxide (dry) Carbon dioxide (wet) Carbon disulfide B C Carbon monoxide Carbon tetrachloride C C Carbonic acid Caster oil A -- Cetyl alcohol A -- Chlorine (gas) D D Chlorobenzene C C Chloroform C D Chlorosulfonic acid D D Chrome alum Chromic/sulfuric acid D D Chromic acid 80 **B -- Chromic acid 50 **B **B Royal Edge Re-Flex TPO Membrane 2/5
Environment Concentration Temperature Chromic acid 10 **B **B Cider Citric acid 10 Copper chloride Copper cyanide Copper nitrate Copper fluoride Copper sulfate Cottonseed oil A B Cuprous chloride Cyclohexanol A B Cyclohexanone B C Decalin C C Detergents 2 Developers (photographic) Dibutyl phthalate B C Dichloroethylene C -- Diethanolamine Diisooctyl phthalate B C Emulsifiers Ethyl acetate B B Ethyl alcohol 96 Ethylene glycol Ethanolamine Ethyl ether C -- Ethyl chloride C C Ethylene dichloride B -- Ethylene oxide B -- Fatty acids (C 6 ) Ferric chloride Ferric nitrate Ferric sulfate Ferrous chloride Ferrous sulfate Fluorosilicic acid Formaldehyde 40 Formic acid A -- Formic acid 10 Fructose Fruit juices Furfural C C Gasoline (the higher the octane the greater the affect) C D Gas liquor C -- Gear box oil B C Gelatin Glucose 20 Glycerin -lubricating (petroleum based) Glycol Grease B C Hexane 100 C D Hydrobromic acid 50 **B C Hydrochloric acid 30 Hydrochloric acid 20 Hydrochloric acid 10 Hydrochloric acid 2 50-50 Hydrochloric-Nitric Acid **B **D Hydrofluoric acid 40 A -- Hydrofluoric acid 60 **B **C Hydrogen peroxide 30 A B Hydrogen peroxide 10 A B Hydrogen peroxide 3 Hydrogen chloride gas (dry) Hydrogen sulfide Hydroquinone Inks Iodine tincture A -- Isopropyl alcohol Iso-octane C D Jet Fuel (kerosene based) C D Kerosene C D Ketones A -- Lactic acid 20 Lanolin Lead acetate Linseed oil Lubricating oil (petroleum based) B C Magenta dye (aqu. solutin) 2 Magnesium carbonate Royal Edge Re-Flex TPO Membrane 3/5
Magnesium chloride Magnesium hydroxide Magnesium nitrate Magnesium sulfate Magnesium sulfite Meat juices Mercuric chloride 40 Mercuric cyanide Mercury Mercurous nitrate Methyl ethyl ketone A B Methyl alcohol Methylene chloride A -- Milk and its products Mineral oil B C Molasses Motor oil (conventional) B C Motor oil (synthetic) B C Naphthalene Nickel chloride Nickel nitrate Nickel sulfate Nitric acid Fuming D D Nitric acid 70 **C D Nitric acid 60 **C D Nitric acid 10 A D 50-50 Nitric-Hydrochloric acid **C D 50-50 Nitric-Sulfuric Acid **C D Nitrobenzene Oleic acid A B Olive oil Oxalic acid (aqueous) 50 A B Paraffin A B Paraffin wax Petrol (gasoline) C D Phenol Phosphoric acid 95 A B Plating solutions, brass Plating solutions, cadmium Plating solutions, chromium Plating solutions, copper Plating solutions, gold Plating solutions, indium Plating solutions, lead Plating solutions, nickel Plating solutions, rhodium Plating solutions, silver Plating solutions, tin Plating solutions, zinc Petroleum ether (B.P. 100-140ºC) C D Potassium bicarbonate Potassium borate 1 Potassium bromate 10 Potassium bromide Potassium carbonate Potassium chlorate Potassium chloride Potassium chromate 40 Potassium cyanide Potassium dichromate 40 Potassium ferri/ferrocyanide Potassium fluoride Potassium hydroxide 50 Potassium hydroxide 10 Potassium nitrate Potassium perborate Potassium perchlorate 10 Potassium permanganate 20 Potassium sulfate Potassium sulfide Potassium sulfite Propyl alcohol Pyridine A -- Silicone oil Soap solution (concentrated) Sodium acetate Sodium bicarbonate Sodium bisulfate Royal Edge Re-Flex TPO Membrane 4/5
Environment Concentrate Temperature Sodium bisulfite Sodium borate Sodium bromide oil solution Sodium carbonate Sodium chlorate Sodium chloride Sodium chlorite 2 Sodium chlorite 5 Sodium chlorite 10 Sodium chlorite 20 Sodium cyanide Sodium dichromate Sodium ferricyanide Sodium ferricyanide Sodium fluoride Sodium hydroxide 50 Sodium hydroxide 10 Sodium hypochlorite 20 A B Sodium nitrate Sodium nitrate Sodium silicate Sodium sulfate Sodium sulfide 25 Sodium sulfite Stannous chloride Stannic chloride Starch Sulfates of calcium & magnesium Sulfates of potassium & sodium Sulfur Sulfuric acid 98 **C D Sulfuric acid 60 B C Sulfuric acid 50 B C Sulfuric acid 10 50-50 Sulfuric-Nitric Acid **C D Sugars and syrups Sulfamic acid Tallow A B Tannic acid 10 Tartaric acid Tetrahydrofuran C D Tetralin C C Toluene C D Transformer oil B C Trichloroacetic acid 10 Trichloroethylene C C Triethanolamine Turpentine C C Urea Urine Vaseline Vegetable oils (general) A B Vinegar Water (distilled, soft, hard & vapor) Wet chlorine gas -- D Whisky White paraffin A B White spirit B C Wines Xylene C D Yeast Zinc chloride Zinc oxide Zinc sulfate NOTE: The data shown are the result of laboratory tests and are intended only as a guide. No performance warranty is intended or implied and RPI guarantees and limited warranties do not cover damage due to oil, grease or chemicals. Ratings were determined by visual examination of coated fabric samples after contact with test fluid for 28 days at room temperature. When considering RPI Royal Edge TPO roofing membrane for a specific application, it is important to study other requirements such as permeability, service temperature, concentration, size to be contained, etc. A sample of RPI Royal Edge TPO roofing membrane should be tested in actual service before specification. When impractical, tests should be devised which simulate actual service conditions as closely as possible. Consult with RPI Technical Services Department for further recommendations. This table is presented and accepted at user's risk. Royal Edge Re-Flex TPO Membrane 5/5