120476 ⎘
Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates containing alkaline earth metal cations
Method for forming multi-layered coating film
#2Method for coating metallic surfaces with an aqueous composition
#3Pre-conversion coating composition
#4Process for coating metallic surfaces with an aqueous composition, and this composition
#5PRE-CONVERSION COATING COMPOSITION
#6Method for Coating Metallic Surfaces with an Aqueous Composition and Said Composition