In the case of CSP and intumescent systems, if they are not applied to the correct thickness across all surfaces of load-bearing steel members or panels/plates and there is a fire event, catastrophic collapse due to heat transfer to the steel can occur resulting in potential loss of life.
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Surface preparation is frequently considered a key factor in determining the long-term performance of a protective coating system. The two-fold purpose of surface preparation is to clean and roughen the surface.
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Testing of new and recycled abrasive is an important, yet frequently overlooked inspection checkpoint. Abrasive cleanliness is an indirect or referenced requirement for each of the joint SSPC/NACE abrasive blast cleaning surface cleanliness standards.
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This article focuses on the standards and techniques for assessing the surface profile/roughness of concrete after various methods of preparation.
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Instruments that are used to verify quality must be calibrated and verified for accuracy, when feasible. Instrumentation is calibrated by the equipment manufacturer or an accredited calibration laboratory, while the instrument user is responsible for verifying accuracy.
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KTA’s Certified Coating Inspector Forum Issue No. 4 KTA’s Certified Coating Inspector Forum is designed to provide professional development/continuing education on standards, inspection practices, new instruments, and other topics to help keep certified AMPP and FROSIO coating inspectors current. It represents the views of the author and KTA-Tator, Inc. It may or may not represent
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KTA’s Certified Coating Inspector Forum Issue No. 1 – May 2022 KTA’s Certified Coating Inspector Forum is designed to provide continuing education on standards, inspection practices, new instruments, and other topics to help keep certified AMPP and FROSIO coating inspectors current. It is occasionally written blog style, and represents the views of the author and
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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
Test Your Knowledge Series – Calculating and Measuring Wet Film Thickness Read More »
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)
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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
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