Welcome to the KTA Coating Failure Analysis Video Learning Series! This is a six-part video series that demonstrates the field and laboratory methods that were used to determine why a new coating system applied to a previously painted concrete floor had failed. Each part is standalone, addressing a different aspect of the evaluation, but when viewed […]
Welcome to the KTA Coating Failure Analysis Video Learning Series! This is a six-part video series that demonstrates the field and laboratory methods that were used to determine why a new coating system applied to a previously painted concrete floor had failed. Each part is standalone, addressing a different aspect of the evaluation, but when viewed
Coating Failure Analysis Learning Series – Part 2 – Field Moisture Detection Read More »
Welcome to the KTA Coating Failure Analysis Video Learning Series! This is a six-part video series that demonstrates the field and laboratory methods that were used to determine why a new coating system applied to a previously painted concrete floor had failed. Each part is standalone, addressing a different aspect of the evaluation, but when viewed
Coating Failure Analysis Learning Series – Part 1 of 6 Read More »
Section loss of pipe wall is of great concern in the pipeline industry. Reduced wall thickness due to pitting corrosion can adversely impact pipeline integrity; the results of which can be catastrophic depending on the product that the pipeline is transporting. In order to reduce the opportunity for corrosion, the use of protective coatings is
Pitting Due to Stray Current Corrosion Read More »
What happens if coatings are applied to an improperly cleaned surface? The simple answer might be to expect premature coating failure, but what exactly is an “improperly cleaned” surface? Was a contaminant left on the surface? Was cleaning not otherwise sufficient to meet the specified standard? Or was the specified coating not appropriate for the
The Case of Improperly Cleaned Surfaces: Failures in Preparation or Specification? Read More »
Blistering formation in high performance industrial coatings is a common phenomenon. Understanding why blisters form is sometimes very simple and in other instances quite complex. For example, understanding and describing the process by which moisture migrates through a coating film at a molecular level to achieve equilibrium can be very complex, especially to the layman.
Common Causes of Blistering and Bubbling in Industrial Coatings Read More »
A minor defect in an exterior pipeline coating can have huge consequences. Consider the fire from the Spectra Energy 30” buried pipeline in Salem Township, Westmoreland County, PA on April 30, 2016. Preliminary findings from the investigation indicate that a pinhole or flaw in the tape wrap used to protect the field welded joints may
Major Consequences of Minor Defects in Exterior Pipeline Coatings Read More »
This article describes the failure of coatings applied to the concrete floors of a county detention facility. The structure is a multistory building with modular cells and concrete floors on each inmate level. The main structural floors were constructed of lightweight aggregate and the mezzanine floors constructed of a normal-weight aggregate. The facility was relatively
F-Files: Mechanisms of Failure- Failure at the Jail Read More »
Specification writers, contractors, and coating manufacturers, at one time or another, have been blamed when installed coatings fail to meet service life expectations. However, rarely does the wrath of Mother Nature receive the blame for premature coating failure. In this Cases from the F-Files, an interior roof coating system reportedly failed because of localized impact
The Case of the Mysterious Hailstones [Premature Coating Failure] Read More »
Whoa! Hold on! How much thinner do you plan to add? What thinner do you plan to add? The data sheet says you can add up to 10% by volume.Even so, it is not uncommon to see painters (or painters’ helpers) estimating thinner addition. It takes an experienced applicator who can save precious time by
The “Whoas” of Solvent Entrapment and Release Read More »