Castable Polyurethane and Ultrathane - Chemical and Solvent Resistance

Polyurethane and Ultrathane is available in both Ester and Ether polyol based systems. Their resistance to chemicals and solvents can vary dependent on their polyol base. A = Excellent, B = Good, C = Fair, D = Poor.  

Chemical/Solvent Ether Ester Acetic Acid C-D C-D Acetone D D Acetylene B-C B-C Aluminium Chloride B B Ammonia B B-C Ammonium Hydroxide A-B B Amyl Chloride C C Benzene D D Benzoic Acid B-C C-D Butyl Alcohol B C Calcium Hydroxide A B Carbon Tetrachloride C D Chloroform D D Chromic Acid C-D D Citric Acid B B Cyclohexane B B Cyclohexanone D D Dibutyl Ether B B Dibutyl Phthalate C-D D Dimethyl Formamide D D Ether B-C B-C Ethyl Acetate D D Ethyl Bromide C C-D Ethyl Chloride C C-D Ethylene Glycol B B-C Ferric Nitrate B B Formaldehyde C B Formic Acid C-D D Fuel Oil B B Glycerine (Glycerol) A B Glycolic Acid B B-C Heptane A B Hexane A B Hydrocarbon Oil A B Hydrochloric Acid(Dil) B B-C Hydrofluoric Acid B-C C Iodine Solution A B Isopropyl Ether B B-C Kerosene B B-C Lactic Acid B B Linseed Oil B B-C

Chemical/Solvent Ether Ester Lubricating Oil B B-C Magnesium Hydroxide A A-B Mercury A-B B Methyl Ethyl Ketone D D Methylene Chloride D D Mineral Oil A A Naphthalene B B-C Nitric Acid D D Nitrobenzene D D Oleic Acid A-B B Oxalic Acid (5%) A A-B Oxygen A A Ozone A A Paints A-B B Palmitic Acid A B Petroleum A-B B Phosphoric Acid (conc.) C D Phosphoric Acid (dil.) B-C C Propyl Alcohol B-C C Propylene Glycol B B Seawater A-B B Silicic Acid B B Silver Nitrate B B Sodium Chloride B B Sodium Fluoride B B-C Sodium Hypochlorite, 5% D D Sodium Nitrate B B Sodium Sulphate B B Steam D D Sulphuric Acid, 10 – 50% C-D D Tannic Acid, 10% A B Tartaric Acid A B-C Titanium Salts B B Toluene D D Trichloroethylene D D Turpentine C B Urea B B Water B B Xylene C C-D Xylol C-D D Zinc Chloride B B Zinc Sulphate B B

Watts Urethane Products, Church Road, Lydney, Glos GL15 5EN, United Kingdom phone: see contacts   email: technical@wattspu.co.uk