Finish TradesCâu 276 / 700
Porous natural stone tile has been installed and grouted. Applying a penetrating (impregnating) sealer to the stone MAINLY serves to:
a.Add a thick glossy topcoat that changes the look
b.Reduce absorption so spills and stains are less likely to soak in
c.Replace the need for grout
d.Make the stone completely maintenance-free forever
Giải thích
A penetrating sealer soaks into the stone and reduces its absorbency so liquids bead and can be wiped up before staining, while leaving the natural appearance. It is not a glossy film, does not replace grout, and stone still needs periodic resealing and care.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
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