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Coatings

Can In-Process Quality Control Prevent Premature Coating Failures?

For decades we have heard that the incidence of premature coating failure would decline by explicitly requiring the contractor to control the quality of workmanship (via contract document language) using properly trained (and equipped) quality control personnel. In this Case from the F-Files, we’ll take a brief look at five case history failures and assess …

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Repair The Building Before You Repair The Paint

When the paint on the exterior of a building exhibits heavy fading, chalking, or peeling, the typical solution is to clean and overcoat, but painting alone may not achieve the desired result, and in fact, it may be destined to fail. Because a number of building-related issues can affect the performance of the coating system, …

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Coating System Concerns for Single-Wythe Concrete Masonry Unit (CMU) Construction

Within a 20-mile radius of your home, you have seen one or more big box stores, strip malls, or other buildings with peeling paint on the exterior and/or interior surfaces. Failing paint and streaks of efflorescence are so common on buildings that it is hardly noticed until large sheets hang from the walls. While moisture …

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The case of…the red rust on a newly applied zinc primer

Photo by Jonny Scholes In this Case from the F-Files, large steel components for a new facility being constructed in the U.S. were fabricated, prepared, and coated overseas with an inorganic zinc primer (IOZ). Upon delivery to an inland river port in the U.S., the components were unloaded for additional assembly work and found to have …

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The case of…failure in a filter house

Photo By Denna Jones How long does it take for a premature coating failure to occur? The likelihood of failure is high shortly after application: from days to perhaps a year. In this month’s Case from the F-Files, a coating delaminated shortly after installation of the coated assemblies. Repairs were made, and the units went …

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Roof Coating Failure

Case Study: Roof Coatings Flunk Out

Premature coating problems on the standing seam roofs of two school buildings were an eyesore for the community and an issue for the school board that was trying to improve the school’s image. This article describes the site investigation, the forensic laboratory analysis, and what ultimately caused the coating to detach.Embarrassed that the four-year-old roof …

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Water Tank blistering

The Case of Surprise Blistering and Rusting on a New Tank Lining System

From JPCL, July 2012 In this month’s F-Files, blisters formed in a lining system installed on the interior of a raw water storage tank that was constructed at a new power plant. Because careful quality control and quality assurance inspection measures were taken from the time blast cleaning began through complete curing of the lining system, it …

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SPF coatings

Formula for Success: With SPF Applications, Quality Assurance is King

  KTA-Tator Inc. Spray polyurethane Foam (SPF) has played a key role in restoration programs for the dome and exterior of New Orleans’ Superdome. Business Wire A combination of economic drivers and technical advances has driven the development of an expanded array of solutions for roofing systems and energy-efficiency improvements in commercial buildings. Depending on …

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The Case of October Showers Bring November Rust Spots

In this month’s Cases from the F-Files, rust spots became evident on the interior roof deck of a newly constructed, unoccupied warehouse. Were the rust spots a result of what was going on inside or outside of the warehouse? Background of the Project As a large warehouse building in the north-east U.S. that was being constructed …

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That New-Paint Look: Keys to Formulating a Plan for Restoring Metal Exteriors

Article From Durability + DesignPhoto 1: High-performance factory finishes, such as the fluoropolymer coating applied to the exterior of this library in Arizona, provide a high degree of color and gloss retention.Photo by Timmerman Photography; photo courtesy of PPG Industries Inc. Factory-applied finishes on roof panels, canopies, awnings, and curtain walls offer a superior combination of …

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