I get a lot of questions about how well paint sticks to ceramic tiles, and shouldn’t I at least gesso the tile before pouring. You would think that was a good thing to do usually but I’ve found adding gesso or any other surface prep to non-porous surfaces has caused me problems in the past. In this video, I will look at how to prepare tiles for painting, and especially for acrylic pouring.
How to prepare tiles for acrylic pouring
Tiles are a great way to get started. They are easily available, affordable and easy to paint on, easy to clean if you don’t like the results. But the surfaces are glossy, so will the paint stick well enough for them to last well into the future? I am going to do a 3-way side-by-side pouring test to see if pouring works better with or without some kind or surface preparation for glossy ceramic tiles.
- a plain glossy tile that has only been cleaned and dried. No other prep.
- DecoArt Media Gesso
- DecoArt Americana Paint Adhesion Medium
We will see if we get better results with any of these options. On the tiles that were prepared, each was cleaned, then given a single generous coat of the gesso or medium and left to dry for 2-3 days before pouring (just because I got distracted by something else!)
Well there you have it. Both of those surface preps would be perfect for regular painting but even fully dry, they simply aren’t a match for the extended moisture that comes from acrylic pouring, where a thickness of wet paint is left on their surface for some time. The new paint softens and lifts the gesso or medium, causing it to come away from the glossy surface underneath and pucker. You can get some great texture in your paintings this way, but if that’s not what you want, then they are ruined.
On the other hand, the tile that didn’t have any preparation other than cleaning, turned out perfectly. So I stand by my assurances that it’s better to pour straight onto the tile than it is to use any kind of gesso etc. Just make sure that you allow the paint on the tile to fully dry all the way through, then apply several coats of a good sealer and I’m confident that paint will be stuck on there for good.
How to seal your tiles?
If using the tiles decoratively as mini-artworks, then I recommend the Polycrylic gloss finish. The tiles up to 6 inches look great on your desk or your mantle as mini-artworks. Use these cute little easels – they come in black or natural finish.
If you want to use your painted tiles for coasters, then you’ll need a water and heat proof finish. Here are the results of some previous testing and experiments with finishes and my recommendations for the best sealers.