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Coatings

graffiti resistant coatings

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 …

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tank interior linings coatings paint

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

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 …

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protective coatings

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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concrete floor coating

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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thermal spray coatings

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 …

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aerosol paint technology

Aerosol Paint – Technology and Testing

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 …

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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 …

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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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