This invention relates to products of aqueous and other chemical synthetic routes for encapsulation of a core material with an inorganic shell and finished compositions of a core-shell 
particulate material for application in 
thermoplastic, thermoset, and coatings resins prior to compounding or application or subsequent thermal 
processing steps. Disclosed is a composition of particles containing a shell of inorganic oxides or mixed-
metal inorganic oxides and a core material of complex inorganic 
colored pigment, 
laser direct structuring additives, 
laser marking, or other beneficial 
metal oxides, 
metal compounds, or mixed-metal 
oxide materials, wherein the shell material is comprised of any single 
oxide or combination of oxides is taught. Preferred elements of composition for the shell are oxides and silicates of B, Ni, Zn, Al, Zr, Si, Sn, Bi, W, Mo, Cr, Mg, Mn, Ce, Ti, and Ba (or mixtures thereof). Applications may include, but are not limited to, coatings or plastic articles or materials for molded interconnect devices, durable goods, housings, assemblies, devices, and articles that are to be exposed to additional thermal 
processing. The resulting core-shell materials function in plastic and coatings formulations by minimizing or eliminating detrimental interactions with the resins and metal containing additives resulting in loss of mechanical properties.