A method of forming a colloidal wetting sensitizer is disclosed. The method comprises combining a stannous species and a cupric species in an aqueous medium maintained at a pH of between 0.4 and 1.5.
This is a division, of application Ser. No. 075,454 filed Sept. 14, 1979 and now U.S. Pat. No. 4,322,451 which is a continuation-in-part of application Ser. No. 901,667, filed May 1, 1978, now abandoned.
