Let’s Talk About Coating/Lining Hardness Testing
The relative hardness of an applied coating or lining can be quantified using Pencil Hardness (thin film coatings) or Durometers (thick film coatings).
Coatings
Let’s Talk About How Inspectors Can Effectively Use Product Data Sheets
Product data sheets are a valuable tool for coating applicators as well as trained and certified coating inspectors. They are essentially an instruction manual for using the product. Unfortunately, many of us don’t read the instructions until it is too late.
Let’s Talk Stripe Coating Inspection
KTA’s Certified Coating Inspector Forum Issue No. 4 KTA’s Certified Coating Inspector Forum is designed to provide professional development/continuing education on standards, inspection practices, new instruments, and other topics to help keep certified AMPP and FROSIO coating inspectors current. It represents the views of the author and KTA-Tator, Inc. It may or may not represent …
Graffiti Resistant Coatings
You see it every day. Graffiti, whether lettering or images, is everywhere: fences, overpasses, structures, train cars. What’s the big deal? To the law-abiding taxpayer, money is the big deal: $12 billion in clean-up alone1 annually across the United States. That figure doesn’t include loss of revenue; public transportation and businesses suffer when patrons and …
Basic Dehumidifier Sizing to Control Conditions for Painting Tank Interiors
Surface preparation and painting the interior of tank structures is sometimes viewed as one of the more easily completed industrial painting endeavors. While it is true that for most tank interiors, the structure itself comprises the containment, there are no logistics involved with traffic restrictions or other trades working in the same areas, and …
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Painting the Natchez-Vidalia Westbound Bridge
The Natchez-Vidalia Westbound Bridge is a 4,205-foot-long through-truss structure that was built in 1940 and carries U.S. 84 westbound over the Mississippi River from Natchez, Mississippi, to Vidalia, Louisiana. The westbound portion is just one of a pair of twin bridges spanning the river. As seen in the August 2020 Edition of the Journal of …
Evaluating Material Loss of Steel Under Protective Coatings in Marine Environments
Over the past 20 years, the U.S. Navy has widely implemented the use of advanced ultra-high-solids (UHS) coatings for the protection of ship tanks and voids to extend the life of tank coatings.1,2,3 The Navy intends these coatings to provide 20 years of service. Experience to date has been largely positive concerning these coatings, although they …
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Defining and Assessing the Texture of Concrete Floor Coatings
Concrete floor coating systems are frequently specified to be textured to improve traction. The surface texture, however, is only one variable that affects the slip resistance of a surface. Slipping can arise from a failure of traction on the interface between, for example, the footwear and the walking surface and is affected by the floor …
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Sealer and Topcoat Systems for Thermal Spray Coatings (Metallizing)
Thermal spray coatings (TSC), also known as thermal spray metallizing (TSM) of steel is widely recognized for its superior galvanic protection properties. It can also be used to protect concrete structures. While bare uncoated metallizing is known to provide ‘good’ corrosion protection properties, it is porous; therefore, the application of conventional liquid-applied coatings over metallizing …
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Performance Testing of Exterior Wood Coatings
Wood is one of the most utilized building materials for exterior structures. Like most exterior substrates, wood structures need protection from the environment. While some wood types are naturally resistant to the environment (e.g., cedar) and some wood is treated with chemicals to preserve its integrity (wolmanized timber), paints and coatings are used to both …