Does Porcelain Tile Require Sealing. There's an argument to say that you'd only seal a polished porcelain tile and would leave a textured or matt surface well alone. The issue is how you apply the sealer. You have to buff it dry with a lint free cloth and if you do it correctly it should not be tacky or leave smudges.
Lulworth Buff Porcelain Tile | Mandarin Stone
Apply one liberal coat wiping off excess sealer before it is allowed to dry on surface. The surface of most ceramic and porcelain tile does not need to be sealed, although some require a light application of a penetrating sealer to fill the micro pores on the surface of the tile. Porcelain tile by definition is less than 0.5 percent and therefore typically does not require sealing.
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If this question would have been posed at porcelain's onset, the answer would have been no. in the past, porcelain was manufactured solely in europe by a small group under very particular performance standards. There's an argument to say that you'd only seal a polished porcelain tile and would leave a textured or matt surface well alone. Do porcelain floor tiles really need to be sealed? Most polished porcelain needs sealing.
