KTA Video Learning Series – Concrete Cleanliness
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Premature Corrosion of Porcelain Enamel-Coated Panels
Background of Design Specifications – Five stations of a commuter rail transportation system were exhibiting corrosion and coating adhesion problems. The train stations were constructed approximately six years prior to observed coating failure. The steel surfaces (column covers, wall and ceiling cladding, soffit, security screens and structural support systems) were to receive a porcelain enamel protective
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Consequences of Applying Coatings Outside of the Recommended Thickness Range
When recommending a coating or coating system for a specification, or when responsible for the application of a coating, the manufacturer’s Product Data Sheet (PDS) should always be consulted. The PDS typically contains information regarding appropriate uses and environments, performance characteristics, and application information including mixing, application methods and equipment and the recommended thickness range
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Concrete Floor Coatings Forensics Case History — Part 2
Concrete Floor Coatings Forensics Case History- Part 2 When examining a coating problem in the laboratory, background information gathered during discussions with the involved parties and information obtained during a field investigation help to direct the course of the laboratory investigation. The background information collected for this case was included in last month’s F-Files, “Concrete
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Installation Woes of a Lining in a Demineralized Water Storage Tank
This month’s case from the F-Files concerns the application of a high performance liner in a steel demineralized water storage tank, or a demin tank. Demineralized (purified) water can be particularly aggressive in service when even minute traces of soluble salt contamination are present on a coated substrate. Therefore is not uncommon to see soluble
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True Detective – Chrissy Stewart, KTA-Tator, Inc.
Chrissy Stewart KTA-Tator, Inc. A senior chemist at KTA-Tator, Inc., Chrissy Stewart is heavily involved in failure analysis using various analytical procedures to determine the cause of premature coating failures. She also creates customized coating material test programs (either compositional or exposure) for individual clients. During her nine-year tenure with KTA, Stewart has acquired SSPC’s
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