Floor Tiles: Are porcelain tiles glazed?

The majority of porcelain tiles are glazed, unless they are polished porcelain in which case they are not glazed.

How can I tell which other floor tiles are glazed? All ceramic tiles, regardless of whether they have a matt, satin or shiny gloss finish will be glazed and of course non-polished porcelain floor tiles.

Are there any other unglazed floor tiles?  Yes, all floor tiles made from a natural stone will also be unglazed – such as terracotta floor tiles, granite floor tiles, quarry tiles, limestone, basalt, quartz, slate, travertine and marble floor tiles.

Do I need to do anything different if fitting a non glazed floor tile? Any non-glazed floor tiles and natural stone tiles will most likely require sealing after fitting using an impregnator, such as HG Impregnator or the HG Marble Impregnator .

You can do a quick marker pen test to check whether you need to use an impregnator on the tiles.  Simply draw on the floor tile with a marker pen, let it dry and then try and wipe it off.

For a glazed tile the mark will completely wipe off leaving no trace whatsoever, any unglazed tiles will leave a mark below the surface which cannot be removed, these tiles need sealing.

If in doubt, ask your local tile shop – any independent retailer will be able to tell you this information, along with details about aftercare and maintenance of your floor tiles.


About Susan

Joined Creative Tiles and Laminates as Marketing Manager in 2005. Complementing the senior management team containing 30+ years experience of fitting, flooring and customer services.
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