If you’re renovating an area and you want to apply epoxy over the tiles, one option you have is just remove the tiles, clean the glue with the adhesive and apply the epoxy on the substrate. You can do that but let’s face it, it is quite messy to just go through that entire procedure of stripping the tiles and cleaning up.
Can epoxy be applied over the tile? Yes, you can do it. However, this will only be possible if you ensure good bonding between the epoxy and the tiles. Tiles are notorious. They are not easy to bond with. Why? Because tiles have been coated with various chemicals to make them nice and smooth glossy.
So if you are going to coat over tiles, first thing you need to do is make sure that. You grind and sand the tiles. You want to remove the glass. You want to scratch the tiles. Scratch them so it will be possible for the epoxy primer to penetrate the tile and you can ensure good bonding.
- So the first step is scratch the tile.
- The next step is use a proper primer. And what I mean by that is don’t use one of those thick-sh high viscosity primers that really are like honey because those primers will never penetrate the tiles. You want to use a fluid a thin epoxy primer and use an example of a thin primer.
- You want to use a thin primer that will penetrate the tile so you can ensure good bonding. An example of a good low viscosity primer to use on tiles is the KILZ L211101 Adhesion High-Bonding Interior Latex Primer/Sealer
How to fix the joints in tiles
So once we have arranged the bonding part, then we’ve got another issue to face. And the other fish the issue you need to face is tiles have joints. I’m assuming that if you’re going to apply epoxy over the tiles, you do not want the joints to show.
Here’s an example where you can actually see the joints of tiles showing.
How do you go about making sure that the joints won’t show? Well, the truth is you’re going to have to do some filling and grouting of the joints and that can be actually a lengthy procedure. You may actually have to do more than once.
You need to fill up the joints, smooth them out and make sure that the joints and the tiles are on the same level before you apply any topcoat otherwise the joints will show.
Do proper installation.
Another important point to keep in mind is sometimes the tiles haven’t been placed properly. Whoever installed the tiles in the first place, if they haven’t been put in straight, the tiles might even show after you’ve evened out the joints. They still might show. This is a warning sign that you cannot be sure that all joints will be eliminated, all traces of joints will be eliminated after you have coated the floor.
So in order to get a successful epoxy floor over tiles, you may need to do several coats to make sure that there are no traces of joint showing. My recommendation is always do one thick layer to fill up the joints and then apply your final layer over the tiles.
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So to summarize again, make sure you guarantee good bonding of the epoxy of the tiles to the epoxy. Once, you’ve guaranteed good bond, that you make sure that you filled in the joints so that the judge will not show after you have completed the coating project.