The degree of cleaning of the metal structure is determined by the process engineer who specifies the technical requirements for the results of this operation. And the initial and average degree of cleaning are used when preparing the structure for painting or precoating. Deep cleaning is used to enhance the presentability of the structure exterior or as a mandatory operation, which precedes complex anticorrosion treatment (galvanizing, chrome-plating, etc.).
The surface painting quality increases many times after carrying-out an abrasive blasting, due to which the life of any coating increases to 15-20 years.