ApplicationCâu 62 / 100
High relative humidity during application of latex paint tends to do what?
a.Make the paint dry instantly
b.Have no effect on drying
c.Slow drying and can extend recoat times or cause finish problems
d.Permanently change the paint color
Giải thích
High humidity slows the evaporation of water from latex paint, extending dry and recoat times and, in extreme cases, causing runs or surfactant leaching. Painters allow extra dry time or avoid coating in very humid or damp conditions. Manufacturers publish acceptable humidity ranges on the data sheet.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- How many coats does a typical high-quality paint job over a properly primed surface usually require?
- Why should you 'back-brush' or 'back-roll' paint that was sprayed onto rough or porous exterior surfaces?
- What is the purpose of masking and using drop cloths before spraying?
- What is the correct spray technique for keeping film thickness uniform?
- When brushing trim, why is 'tipping off' with light strokes at the end helpful?
- Why should each coat be allowed to dry for the manufacturer's recommended recoat time before the next coat?
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