g of suspended zinc oxide powder the mixture was shaken with initial cooling under a water tap and became a homogeneous solution in less than 1 2 hour the solution dried at 25 u00b0 to a viscous liquid and at 115 u00b0 1 to 2 hours to a solid which was amorphous brittle and deliquescent and which reverted to a water soluble liquid under ambient conditions blends of the solution product or the starting quaternary salt containing organotrimethoxysilane with larger molar quantities of the zinc ammine methylsiliconate solution of example 2 provided mixed organosiliconate solutions which dried to solid copolymers which were brittle and insoluble it was observed that increased concentrations of quaternary ammonium salts produce dried solids which were less hydrophobic than those from the methylsiliconate alone the reaction product of 0 81 g of zinc oxide 9 91 g of dimethyl n octadecyl 3 trimethoxysilyl propyl ammonium chloride 10 0 g of 28 aqueous ammonia in 100 g of 2 n butoxyethanol after overnight agitation was diluted with 15 0 g of additional 2 n butoxyethanol and gave a clear homogeneous solution of a zinc ammine siliconate with an si zn ratio of 2 0 1 0 upon air drying the solution gave a non tacky coating which was firm soft water repellent and water insoluble but swollen by toluene a blend of 60 parts of arolon 363 which is a water thinable soya alkyd resin 50 solids in butoxyethanol and water and is commercially available from ashland chemicals with.