| abstract |
The present invention relates to a supplement composition and a method of supplementation of a pretreatment composition. The method includes adding a supplement composition to a pretreatment composition, wherein the supplement composition comprises (a) a dissolved complex metal fluoride ion comprising a Group IIIA metal, a Group IVA metal, a Group IVB metal, or a combination thereof; (b) a component comprising an oxide, hydroxide or carbonate of a Group IIIA metal, a Group IVA metal, a Group IVB metal or a combination thereof; And (c) optionally dissolved metal ions, including Group IB metals, Group IIB metals, Group VIIB metals, Group VIII metals, lanthanide-based metals or combinations thereof. |