High-performance coatings encompass a range of paints and finishes that serve a variety of architectural applications:
1] Structural and material protection typically demands a coating specifi cation that matches the substrate’s behaviors and weaknesses, whether for steel, cast concrete, concrete masonry, or drywall. Some finishes have active properties, such as selfhealing or self-cleaning, that afford unique performance advantages.
2] Color is an important performance consideration, particularly custom color matching, color retention, and color consistency.
3] Specialty colors and optical effects make up another high performance category, which includes iridescent, metallic (or metalescent), and pearlescent fi nishes. These reflective materials change color depending on the way visible light refl ects off the materials. They look different depending on the viewer’s angle to the surface, the intensity of the light source, and the angle of incidence of the light source (such as the sun).
After reading this article, you should be able to:
+ Describe the composition, applicability, and performance characteristics of optical coatings, such as iridescent and metallic nishes for architectural projects.
+ List key performance standards, air-quality concerns, and applicator considerations in the use of iridescent and metallic coatings.
+ Discuss performance, sustainability, and durability issues related to color matching with common coating formulations.
+ Describe high-performance coatings used to protect building structures and building materials.