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ASM Handbook

Protective Organic Coatings

Edited by
Kenneth B. Tator
Kenneth B. Tator
KTA-Tator, Inc.
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ASM International
Volume
5B
ISBN electronic:
978-1-62708-172-6
Publication date:
2015
Book Chapter

Shop and Field Quality Control and Quality Assurance

By
Bill Corbett
Bill Corbett
KTA-Tator, Inc.
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Published:
2015
Page range:
256 - 276
Publication history
December 26, 2014

Abstract

This article discusses the concepts of quality control (QC) and quality assurance (QA), and clarifies the differences and similarities in the roles and responsibilities of QC and QA personnel. It describes the inspection procedures used to verify proper surface preparation and installation of the protective coating/lining system. Prior to beginning surface-preparation operations, many specifications will require a presurface-preparation inspection to verify the correction of fabrication defects and removal of surface contamination such as grease, oil, cutting compounds, lubricants, and chemical contaminants. When inspecting concrete prior to coating installation, three areas of concern exist: surface roughness, moisture content in concrete, and acidity/alkalinity of the surface. The article provides information on the industry standards for assessing surface cleanliness. It details postcoating application quality requirements, including measuring of dry-film thickness, assessing intercoat cleanliness, verifying minimum and maximum recoat intervals, performing holiday/pinhole detection, conducting cure/hardness testing, and assessing adhesion of the applied coating system.

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Bill Corbett, 2015. "Shop and Field Quality Control and Quality Assurance", Protective Organic Coatings, Kenneth B. Tator

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