Finish TradesCâu 233 / 700
After grouting a tile wall, a light cloudy film remains on the tile faces. This grout haze is BEST removed by:
a.Leaving it because it disappears on its own within a year
b.Aggressive dry sanding of every tile
c.Wiping/cleaning after the grout has firmed but before it fully hardens, then a haze remover if needed
d.Flooding the wall with water immediately after grouting
Giải thích
Grout haze is cleaned by wiping the tile once the grout has firmed in the joints but before it fully cures, using a damp sponge and, if needed, a grout haze remover. Waiting a year, dry sanding, or flooding fresh grout with water (which weakens and washes out the joints) are all wrong.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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