Usoro ịgbasa ntụ ntụ, nke a makwaara dị ka mkpuchi ntụ ntụ, bụ usoro mkpuchi ọhụrụ nke mepụtara ngwa ngwa n'ime iri afọ ndị na-adịbeghị anya.Ihe eji eme ihe bụ ntụ ntụ plastik.mkpuchi nwere ike inwe thicker mkpuchi, dị ka mkpuchi 100 ~ 300μm mkpuchi, na izugbe ihe mgbaze mkpuchi, banyere 4 ~ 6 ugboro, na na ntụ ntụ mkpuchi bụ otu ugboro nwere ike nweta ọkpụrụkpụ.Ihe mkpuchi ahụ nwere ezigbo nguzogide corrosion.Ihe mkpuchi ntụ ntụ enweghị ihe mgbaze, ọ nweghịkwa mmetọ nke mkpofu atọ.Iji ntụ ntụ electrostatic spraying na ndị ọzọ ọhụrụ usoro, elu arụmọrụ, adabara akpaka akara mkpuchi;Ọnụego ojiji ntụ ntụ dị elu, enwere ike ịmegharị ya.