ApplicationCâu 52 / 100
Why should exterior painting generally NOT be done when the surface temperature is below the coating's minimum application temperature?
a.The paint will dry too fast
b.It improves gloss
c.Cold temperatures can prevent proper film formation (coalescence) and curing, causing adhesion and durability problems
d.Cold has no effect on latex paint
Giải thích
Latex paints must coalesce as they dry, and temperatures below the product's minimum (often around 50 F, though some are lower) prevent the film from forming properly. This leads to poor adhesion, cracking, or a weak film. Always check the data sheet for minimum air and surface temperatures.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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