ID 2775 Chapter : PAINT
Document Summary
Identify different sheens and know when to use. Understand voc and how to choose a green paint. Identify common paint performance problems and understand how to use. 1920- alkyd (lead based: hard, durable--- unsafe, whites= in 1922, paint only came in white and couldn"t afford to buy new uniforms, so they wore white so it wouldn"t show on clothes. What does it do: protects a substrate from, termites, wood rot, enhance esthetics, colors a surface, provides desired sheen, highlights design elements. Solvents- acrylic, latex- liquid portion of paint that carry the other ingredients. Additives- special purpose ingredients that give the product extra performance features specific to a product"s purpose: mold and mildew inhibitors, defoamers, coalescing agents, driers, freeze-thaw stabalizers. Volume solids- percentage of paint that will be left on the surface after the coating is completely cured: consider: volume of solids is good; quality of sloids determines performance, inexpensive fillers, such as sand and clay, impair performance.
