▎ 摘　　要

NOVELTY - Hole sealing agent comprises 10-20 wt.% mixed fined powder, 30-60 wt.% crosslinking agent, 20-40 wt.% organic solvent, 5-10 wt.% curing agent, 3-7 wt.% dispersant and 1-2 wt.% antifoaming agent. The mixed fined powder comprises 60-70 pts. wt. chromium oxide powder, 20-30 pts. wt. titanium oxide powder, 4-6 pts. wt. nickel powder, 4-6 pts. wt. aluminum silicon powder, and 4-6 pts. wt. graphene oxide powder. USE - The hole sealing agent is useful for reducing ceramic reticulate pattern roller thermal spraying coating pore. ADVANTAGE - The hole sealing agent: can reduce the pore of the ceramic reticulate pattern roller thermal spraying coating and improve the coating surface sealing effect and the coating quality and prolonging the service life of ceramic reticulate pattern roller; and has good hole sealing uniformity, and deep hole sealing depth. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing hole sealing agent, comprising (i) mixing chromium oxide powder, titanium oxide powder, nickel powder, aluminum silicon powder and graphene oxide powder respectively homogeneously to obtain mixed coarse powder, mixing the mixed coarse powder with the adhesive aqueous solution and balling mill to obtain the slurry, drying the slurry and sieving to obtain mixed fine powder; and (ii) mixing the mixed fine powder, cross-linking agent, organic solvent, curing agent, dispersant and antifoaming agent and ultrasonically dispersing.