KTA Quiz

Background Most of the SSPC surface preparation standards focus on the preparation of steel, either by abrasive blast cleaning (dry and wet), power tool cleaning, or water jetting.  Recognizing that galvanizing, non-ferrous metals, and various types of stainless steel also need to be prepared for painting, SSPC published a standard for brush-off blast cleaning of […]

Introduction/Background When applying a coating system to structures such as tanks and pipelines, the primary goal is to apply a continuous film to help prevent corrosion and section loss, and in some cases, to prevent contamination of the contents. Discontinuities in the film can result in undercutting corrosion of the substrate, and the integrity of

Introduction/Background Wet film thickness (WFT) is the measured thickness of any applied wet paint that is liquid-based.  The WFT is measured to assure that the correct amount of coating is being applied to the surface.  A wet film thickness gage should be used by the applicator to determine the thickness of the applied film before

Introduction/Background Surface profile is defined as a measurement of the maximum peak-to-valley depth created by abrasive impingement against a surface during abrasive blast cleaning operations, or by an impact-type power tool. During abrasive blast cleaning, the mass of the abrasive and the velocity of the abrasive movement created by compressed air generates kinetic energy (the

Surface Soluble Salt Detection and Analysis Introduction/Background Chemical contaminants on a surface can include chlorides, ferrous ions, sulfates, and nitrates, among other types of soluble salts. Chloride may come from deicing materials or marine/coastal environments, ferrous ions are a by-product of corrosion, sulfates can be airborne, particularly in industrial environments (e.g., near coal-fired power plants)

Abrasive Blast Cleaning Standards SSPC: The Society for Protective Coatings and NACE International[1] has volunteer technical committees made up of subject matter experts that develop consensus standards that are drafted, balloted, approved, and published. Once published, these industry standards can be referenced in a coating specification and are invoked by contract once the bidding process