Abstract: A hydrophobic hybrid organosiloxane nano latex is provided as the copolymerizate of: (a) organosiloxane monomer of the general formula MaMvbDcDvdTeTvfQg wherein: M=R1R2R3SiO1/2, Mv=R4R5RuSiO1/2, D=R6R7SiO2/2, Dv=R8RuSiO2/2, T=R9SiO3/2, Tv=RuSiO3/2, and Q=SiO4/2 in which R1, R2, R3, R4, R5, R6, R7, R8 and R9 each independently is hydrogen, a hydroxyl group, a hydrocarbyl group having up to 100 carbon atoms and optionally containing at least one hetroatom; Ru is a free-radical polymerizable group; subscripts a, b, c, d, e, f and g each independently range from 0 to 10,000 subject to the limitation that b+d+f is at least 1, p, q and r are integers independently selected from 0 to 100 and subscript h is 0 or 1; and, (b) monomer possessing a group which is free-radical copolymerizable with group Ru of organosiloxane monomer (a).