Surface Preparation Standards for Steel …

Tions should be addressed. What parameters should be considered in the standard? What are the critical values for these parameters? How can the parameters be evaluated or, respectively,measured?An answer to the first question is delivered by ISO 8502,which states that, the behaviour of protective coating sys-tems is affected mainly by the condition of the substrateimmediately before the coating system is applied. Thisbehaviour is basically determined by the following. Rust and mill scale Surface contaminants, includingsalts, dust, oils and greases RoughnessWith this definition, three maingroups of Surface properties canbe distinguished as illustrated inFig. 2. Some, but not all, of theanswers to the third question canbe found in ISO 8502 and in ISO8503. The second question isprobably the most difficult toanswer; it is one objective of thisarticle to contribute to this Available forBlasted Steel surfaces Those issued by independent organ-isations ISO 8501-1+2 ( Surface cleanli-ness) STG Guide No.

www.paintsquare.com JPCL / February 2004 / PCE 49 Those issued by paint manufacturers • Jotun: Degree of Flash Rusting • Hempel: Photo Reference Water Jetting • International: Hydroblasting Standards

Loading..

Tags:

  Surfaces, Standards, Water, Preparation, Steel, Jetting, Water jetting, Jpcl, Surface preparation standards for steel, Paintsquare

Information