Non-flammable, VOC-free organosilane quaternary ammonium compositionsare provided in the form of pure or substantially pure water-soluble productsthathave bactericidal, fungicidal and viricidal activity and which are capable ofbondingto various surfaces to form durable hydrophobic coatings. The compositionshavethe following general chemical structure:(see above formula)The resulting compositions are free of unreacted chloropropyltrialkoxysilanes,alkylamines and organic solvents that would otherwise provide flammable,corrosive,and/or toxic properties thereby inhibiting their safe and effective use insurface care,personal care and coating products.