Bisque Tile Experiments
Posted by
Birch, Texas 
Joined Feb 1, '18 

I found a stack of bisque (unglazed / unfinished) tiles in my mom’s attic, and have been experimenting with them between other projects. Unlike with glazed tiles, the laser darkens them, although so far I haven’t gotten a real DARK dark result. I think the heat of the laser must be enough to “fire” the parts it hits, because it doesn’t seem like running a second pass ever changes anything.

Here’s my best one so far–I hit it with a couple of coats of spray lacquer to see what would happen. It didn’t change the engrave at all, but it gave the tile itself kind of a yellowed “antique” look:


This was the first one I did; not as aggressive with the settings, so it didn’t come out as dark, and like I said, doing another pass didn’t change it:


The laser does actually vaporize some of the surface. (I haven’t tried vary power on it yet, that’s on my list!)

IMG_6360 (1)

On this one I tried painting it black and doing a reverse engrave. I used a primer plus paint spray, but I think the unglazed surface soaked up too much color for it to really “pop.”


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