Methods are considered for protecting the surface of polydispersed materials from dust carry-over with open stockpiling methods, shipment and storage. Requirements are developed for the physicochemical parameters of solution of technical-grade binders for agglomeration of the surface layer of powder materials with the aim of forming a protective coating. Compositions are proposed that contain technical-grade lignosulfonate (TLS), latexes for securing the dusty surface of phosphogypsum and ferrous titanium slurry, stored in open territory of a cement plant. In order to treat the open surface of bituminous coal, shipped by river transport, compositions are developed containing a sodium salt of carboxymethyl cellulose and TLS, and the optimum consumption of binder material aqueous solutions is established. Compositions containing TLS and polyacrylamide (PAA), and also PAA and phenolformaldehyde resins, are developed for reducing dust carry-over from the open surfaces of an iron ore enrichment combine waste dump.