Coatings

Exterior Service Finish Coat Performance: A Comparison of Acrylic Polyurethane, Polyester Polyurethane, Polyaspartic, Fluorourethane and Polysiloxane Coatings

Introduction For decades, traditional aliphatic acrylic polyurethane topcoats were the mainstay as finish coats for exterior environments where resistance to solar radiation (sunlight) was desired to preserve color and gloss and provide corrosion and chemical resistance. However, ultraviolet light degradation of the urethane resin would cause a color shift (fading) and gloss reduction of the

Exterior Service Finish Coat Performance: A Comparison of Acrylic Polyurethane, Polyester Polyurethane, Polyaspartic, Fluorourethane and Polysiloxane Coatings Read More »

concrete coating

Coating Concrete: Performance Expectations, Coating Types, and Performance Testing of Coatings Used to Protect Concrete Bridges

Introduction Concrete is the most widely used building material worldwide because it has many unique properties that make it ideal for use in construction. Concrete is formable and is naturally resistant to UV, mold and insects. Concrete is noncombustible and is relatively inexpensive relative to other building materials. Why Coat Concrete? There are several reasons

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surface profile steel

Surface Preparation of Steel Prior to Application of Thermal Spray Coatings

Introduction The installation of thermal spray coatings (TSC) or metalized coatings is becoming more common for protection of new and existing structural steel members on locks & dams, bridges, tanks and other industrial structures. While the installation of thermal spray coatings is typically more labor intensive and more costly than traditional liquid-applied coatings systems, the

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The Formation of Amine Exudate (Blushing) of Epoxy Coatings

Epoxy coatings are some of the most widely used materials in industrial and marine environments. Epoxy materials typically have excellent adhesion, chemical resistance and water resistance, which make them first-rate candidate coatings/linings for these environments. Epoxies are formulated as two component materials, with one component housing an epoxy resin and the other component containing a

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wastewater coatings

Performance Testing of Coating Systems for Wastewater Service

Introduction Ironically, the demand for improved water quality has made the service environment of wastewater treatment facilities even more aggressive, requiring higher performance coatings for corrosion protection. Environmental regulations have restricted the heavy metal content and required pH control of water discharged to wastewater treatment facilities. Prior to the implementation of these regulations, the microbes

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High-Temperature Service (Heat-Resistant) Coatings: Industries, Coating Types, Testing Protocols and Consequences of Testing Inconsistencies

High temperature-resistant coatings are used in a variety of industries and markets to prevent corrosion of steel subjected to extreme temperatures while in service. There are several testing protocols that are used to evaluate the performance of these coatings; however, performance comparisons are challenging since there is little uniformity or consistency of the test methods.

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podcast 2 shop painting v shop and field painting

KTA University Podcast #2 – Total Shop Painting vs. Shop & Field Painting

This 24- minute podcast also features Ken Trimber as moderator, while Doug Reardon advocates total shop painting and John Todd promotes shop painting with field finish coating. Scenarios are posed by Trimber as Todd and Reardon take turns providing support for their approaches while divulging plenty of information on the subject. A podcast breakdown is

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