Aerosol paints (also referred to as spray paints), like other paints are used for both protection and aesthetics; however, they differ from conventional paints due to their unique atomization/ application method and the container used to both store and apply the paint. The concept and the design may seem simplistic to the do-it-yourself consumer, but …
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 …
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 …
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 …
Surface Preparation of Steel Prior to Application of Thermal Spray Coatings Read More »
Introduction According to Wikipedia, an exemplum (Latin for “example”) is a moral anecdote, brief or extended, real or fictitious, used to illustrate a point. While I wouldn’t consider deciding whether to perform painting work in a shop or in the field a “moral issue,” this story-telling approach is intended to provide a more interesting way …
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 …
The Formation of Amine Exudate (Blushing) of Epoxy Coatings Read More »
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 …
Performance Testing of Coating Systems for Wastewater Service Read More »
Galvanizing is the application of a zinc layer to steel by a variety of methods such as hot dip, continuous or electro-deposition. In many instances galvanized steel is not painted since the service life of galvanizing alone typically exceeds that of conventional protective coatings. When paint is applied to galvanizing it often is referred to …
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. …
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 …
KTA University Podcast #2 – Total Shop Painting vs. Shop & Field Painting Read More »