Products & Materials第 37 / 100 题
When selecting a coating for a surface exposed to constant direct sunlight, which property is especially important?
a.Low cost only
b.UV and color-retention resistance (fade resistance)
c.The fastest possible drying time
d.The lowest possible film thickness
解析
Ultraviolet light degrades binders and pigments, so exterior coatings in full sun should have good UV resistance and fade-resistant pigments. 100% acrylic exterior paints are commonly specified for this reason. Matching the coating to the exposure is a core part of product selection.
免费刷完整 100 道题库 — 无需注册。
同考点相关题目
- What is the function of the 'binder' (resin) in paint?
- Which thinner/solvent is generally correct for cleaning up oil-based (alkyd) paint?
- A block filler is used on masonry primarily to do what?
- A primer's main job is to do what?
- If a coating is applied at 4 mils wet and the paint is 50% solids by volume, what is the approximate dry film thickness?
- What is the purpose of adding a small, manufacturer-recommended amount of the correct thinner to paint for spraying?