Patent ID: 8858702

Claim:
A phosphate ceramic spray composition comprising an atomized combination of: a first component comprising a high-solids content aqueous suspension of an acid-phosphate of chemical formula A m (H 2 PO 4 ) m .nH 2 O, where A is hydrogen ion, ammonium cation, metal cation, or mixtures thereof; where m=1-3, and n=0-6; the first component suspension adjusted to a pH of about 2 to about 5; wherein the high solids content of first component is at least 63 wt % of the aqueous suspension; a second component comprising shear-thinned, high solids content aqueous suspension of an alkaline oxide or alkaline hydroxide represented by B 2m O m , B(OH) 2m , or mixtures thereof, where B is an element of valency 2m (m=1, 1.5, or 2) the second component suspension adjusted to a pH of between 9-14; wherein the high solids content of second component is at least 54 wt % of the aqueous suspension; and a rheology modifier/suspending agent present in an amount providing the shear thinned second component, the rheology modifier/suspending agent further suspending the high solids content of either the first component or the second component in their respective aqueous suspensions; and optionally, aggregate material present in an amount in at least one of the first and the second component capable of imparting an observable color and/or texture.