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Dennis M. Smith
Dennis M. Smith, Construction Consultant
Category: Home Improvement
Satisfied Customers: 1712
Experience:  Over 40 yrs. as General Contractor for new const. & remodel - retired with time for you.
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we are laying ceramic tile and we are about to put the grout

Customer Question

we are laying ceramic tile and we are about to put the grout in and my daughter spilled cooking oil on the floor and it soaked in and discolored the tile how can i get it out
Submitted: 7 years ago.
Category: Home Improvement
Expert:  Dennis M. Smith replied 7 years ago.

First thing is do not proceed with grouting, at least near the area where there is the oil stain. Please tell what the tile is? Ceramic, some type of stone, etc. Also and right away, cover the area and tape the edges sealed.


Dennis (cut2it)

Customer: replied 7 years ago.
ceramic single fired for interior, monocottura, rating number 4
Expert:  Dennis M. Smith replied 7 years ago.

Okay, you are dealing with a fairly porous material. It is usually advisable to immediately after installation of just the tile, and after the grout has set up a couple of hours, to seal the surface the first coat with a penetrating sealer.

As it is the approach to extracting the oil is to use Borax soap powder. Sprinkle dry powder over the problem areas to about an 1/8th to 1/4 inch depth. Don't worry if some gets down in the open grout joints. Next cover the area with cardboard and tape the cardboard down. You may need to leave this in place at least a week. In the meantime get the rest of the tiles sealed and even proceed with the grouting. Note of caution: When all go the grouting is not going to be done all at once a person must pay close attention to the grout mixing ratio. (Unless it's a pre-mix of course) Problem being that a different amount of water can produce a different shade of grout color.

After the Borax treatment if any discoloration still exists, you will need a small bottle of "Greased Lightening." Readily available at home improvement stores and sometimes even supermarkets. Vacuum and wipe away all Borax and spray the area quite liberally with the Greased Lightening. Let it sit, but keep it damp, for about 5 minutes. Use a medium bristle brush and scrub in small circles. Wipe it away, let the area dry and get it sealed.

Now, all this being said your other option would be to simply break out the stained tiles, scrape away the adhesive and re place the tiles.


Dennis (cut2it)

PS... If the adhesive is really hard and difficult to scrape use a propane torch to soften it a little while scraping.

Customer: replied 7 years ago.
would it be easier to just replace the tile that was effected
Expert:  Dennis M. Smith replied 7 years ago.

If it's only one or two tiles I wold say yes...


Customer: replied 7 years ago.

do you think the dish soap would work if i leave it on longer