ApplicationCâu 70 / 100
For an oil-based enamel on trim, which brush type is generally preferred?
a.A synthetic (nylon/polyester) brush only
b.A foam roller only
c.A natural-bristle (china bristle) brush
d.Any brush works equally, no difference
Giải thích
Natural China-bristle brushes hold and release oil-based (alkyd) coatings well and give a smooth finish, so they are preferred for solvent-based enamels. Synthetic brushes are used for latex paints because natural bristles absorb water and go limp. Matching brush type to the coating improves the finish.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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