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Question:

Can we remove dried cement from surface of tiles?

hey guys my house just got renovated a few days ago... it seems like some tiles have tough stains on it. is there a type of detergent or anything that removes it off? it looks well ugly and makes the surface rough... it's on both my floor and wall tiles

Answer:

i dont think you are going to be able to do this and still maintain the glossiness of the tile but i would brush on a 50/50 mix of muriatic acid and water and scrape off the big blobs with a putty knife ...then take a stiff brush to it...rinse well...
Try fine grade wire wool. Use it gently so you don't damage the surface of the tiles. Another point to remember is to keep all pets away from the area while you are working. My dog got some fine grain plaster in his eye that caused temporary blindness and ?140.00 emergency vet's bill. Best wishes from Sue
Muriatic Acid is what you want, but use heavy rubber gloves and use sparingly. Don't let it spatter on carpets or furniture. Don't let it spatter on metal. it is a weak acid and will bubble up when it gets onto cement. To neutralize it, you can use a solution of bicarbonate of Soda and water. White vinegar may well work also and you might want to try that one first since it has less precautions that would come with its use. You would neutralize that the same way. If your tile grouting has been sealed, you will have to redo that.
Removing Tile From Concrete Floor
The use of muratec acid will remove the glaze on the tile. Not sure if diluted will or not but I d never use it . The use of a metal chisel can leave marks on the tile that you ll never get off. First ,if this is thin set still on the tile get the tile person back to clean it off. Barring that , if you have to do it, scrape what you can off with something softer. I use a piece of wood. After the lumps come off use a white nylon pad and go over the tile dry with it.Special pads used for tile clean up can be bought most any place that sells tile. Their called a doodle bug pad. While your there you might want to get a small bottle of grout and effervescent remover.About $8 for an 8 oz bottle. If going over the tile dry doesn t remove it, then go with the cleaner.Doing it wet right away will only reintroduce any removed thin set or grout to the tile. After all cleaned up consider sealing the tile ,but not before it s cleaned.Tile Lab and Cerama Seal sealers work well. You ll ned to wait for a minimum of 72 hours with all pentatrating sealers Any questions you can e mail me thru my avatar GL

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