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Spokane, Washington  Est. May 19, 1883

How to repair a chipped tile with epoxy and paint

A small chip in this white tile can be seen in the area circled in red. It can be repaired in less than an hour. (Andrew Vous)
Tim Carter Tribune Content Agency

Dear Tim: I have a gorgeous white tile floor in my home. It’s a long story, but I dropped something and chipped a tile. I tried to hide it with a throw rug, but my wife caught me. To get out of the doghouse, I need to repair the tile. Do I have to take out the old tile and replace it with a new one? I would think matching the grout would be very hard to do. Is there another way to repair the chipped tile that will work and get me back into the good graces of my better half? – Andrew V., Perth, Australia

Dear Andrew: I’m reminded of the time 40 years ago when I ruined some brand new ceramic tile in the kitchen of my second home. It was one-of-a-kind hand-painted backsplash tile near a sink that I sprayed with molten copper and steel. I need not go into the details about how that happened, but suffice it to say my better half was standing next to me just before the foolish accident and had asked me if I knew what I was doing. The sparks, smoke and molten splatter told her all she needed to know.

Here’s the good news. You’re going to be able to repair the chipped ceramic tile in less than a day. You do have options with respect to how to accomplish the task. I recommend you also buy a box of fine chocolates to supplement your peace offering.

Let’s discuss the option of replacing the chipped tile. Sometimes you have to do that because the chip is so big that you may not have the skill set to repair it using the second method I’ll describe.

If you decide to remove a ceramic floor tile, first make sure you have an exact match of the tile. Most people don’t keep leftover tile at their homes. I feel that builders and remodelers should always leave behind spare tile, in the boxes it came in. Homeowners should keep the tile and hand it off to future owners when they sell the home.

In addition to saving the spare tile, it would be great if you had some of the original sanded grout. It’s harder to preserve sanded grout because the Portland cement in the product wants to harden as it’s exposed to humid air. To preserve it, you need to place it in a tightly sealed container and freeze it. The air inside most freezers is exceptionally dry.

If you don’t have any spare grout, then you have to match it. If you don’t get a perfect match, the new grout line surrounding the replaced tile will look worse than the current chip! If you do decide to replace the tile, then you need to deep clean the tile and grout first and allow the grout to dry so you can see its true color. I recommend using certified organic oxygen bleach to clean tile grout.

The photograph you sent me is excellent. The chip appears to be the size of a green pea or pencil eraser. I’ve repaired many chips like this in less than four hours. You’re going to do the same.

First, make sure the chipped area is clean and free of all dirt, dust, oil, etc. Once it’s clean, you’re going to mix up some rapid-set clear or white epoxy. The epoxy I use sets up in about five minutes after it’s mixed.

I’ve had great success with a product that’s the consistency of honey when it’s mixed. It’s self-leveling and works great in the field area of a tile. You add just enough epoxy so it flows and is the same level as the surrounding glazed finish.

In your case, you’re going to have to work a little harder because your chip is on the edge adjacent to the sanded grout. This area of the tile often has a slightly rounded profile, and you don’t want the epoxy to run down onto the grout. You’ll have to add the epoxy in at least two applications and build up layers over a period of 30 minutes.

Once you get the epoxy placed and the chip is filled to the right height and profile, you paint the epoxy with a matching paint. You’ll use a fine artist brush so you don’t get any paint on the adjacent tile or grout. Put on at least two coats. Once the paint is cured – this could take several days – then you coat the paint with three coats of water-based clear urethane.

I want you to refine your repair skills first using some scrap tile you have around the house or that you buy. Chip a piece and do all I say until you’re an expert at the method. Do not try the techniques I described for the first time on the tile in your kitchen. You only get one chance to repair it correctly and you need to have great skills. You’ll attain those rapidly with a few practice sessions out in your garage.

Let me know the instant you’re out of the doghouse and how the chocolates were received. I’d also like to see an after photo taken of the tile once you repair the chip.

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