Using a “Tile Sandwich” for Baking Flat Polymer Clay

Video #676: The trick to keeping those ugly bubbles from showing up, is to sandwich in between two ceramic tiles.

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IN THIS POST: — baking — flat polymer clay — tile sandwich — ceramic tiles — bubbles — blemishes — smooth polymer clay — (Topics marked with an asterisk* are discussed in the Comments Section below).

Topics Covered In This Video:

How to bake flat polymer clay in a tile sandwich.

I received a question/request from another YouTuber, called SweetBioDesign, for a way to bake flat pieces so that they don’t curl up after baking.

I also had this issue way back when I baked directly on a ceramic tile, where I’d get little bubbles on the top and weird gaps and shiny spots on the back of all my flat pieces.

So years and years ago, I started baking my clay pieces in between a ceramic tile sandwich.
You need two smooth ceramic tiles with no embossed patterns or textured surfaces.

The tile sandwich… place one tile smooth side up on the bottom. Then add a piece of plain office paper on top of the tile. Then your flat polymer clay piece. Then another piece of paper. Then lastly, the other tile, smooth side down.

Bake the tile sandwich in the oven for one hour… at the correct temperature for the brand of polymer clay that you are using.

The piece will come out perfectly flat and smooth on both sides.

Video Transcript - English

00:00:03 –> 00:00:09 Hi guys, its Cindy Lietz, your Polymer Clay Tutor, and today’s PcT Studio Tip, we’re talking

00:00:09 –> 00:00:14 about how to bake flat Polymer clay in a tile sandwich.

00:00:14 –> 00:00:20 Now, I’ve been doing this for a long time, but I got a request… or a question from

00:00:20 –> 00:00:30 another YouTuber, their name is SweetBioDesign, and they asked about baking flat Polymer clay

00:00:30 –> 00:00:36 so that it doesn’t bend up when you’re baking it, and I’ve also had this issue years ago

00:00:36 –> 00:00:47 when I used to bake on a flat tile where you would get little bubbles in the piece, and

00:00:47 –> 00:00:51 the back was all kinda mottled, and didn’t look very good.

00:00:51 –> 00:00:53 So I figured out…

00:00:53 –> 00:00:57 I’m not sure if it was totally on my own or if I remember reading…I don’t know, but

00:00:57 –> 00:01:02 it was years and years ago I started doing what is called a tile sandwich.

00:01:02 –> 00:01:08 And here is a tile sandwich, now you need to put… you need to have 2 tiles and each

00:01:08 –> 00:01:13 side needs to be smooth, so you can’t have it embossed with some sort of pattern or anything

00:01:13 –> 00:01:15 like that.

00:01:15 –> 00:01:21 But what you do is you take your flat piece of Polymer clay… this is stuck to the paper

00:01:21 –> 00:01:26 now, so you have your tile at the bottom, you have a piece of paper, put your piece

00:01:26 –> 00:01:33 of Polymer clay on there, put another piece of paper on top…make sure there’s no printing

00:01:33 –> 00:01:39 or anything on it, and then the flat tile upside down on top.

00:01:39 –> 00:01:46 Then when you bake it, I always bake my… this is Premo! clay I’m working with, so if

00:01:46 –> 00:01:53 I’m baking it, I’m gonna bake it at 275 Fahrenheit, and then I’m gonna bake it for 1 hour, but

00:01:53 –> 00:02:01 while it’s inside there, with the pressure on top, and being between the 2 sheets of

00:02:01 –> 00:02:06 paper, you’re going to get a super, super smooth piece.

00:02:06 –> 00:02:13 So see this one here, it’s perfectly flat, perfectly smooth and it’s smooth on both sides,

00:02:13 –> 00:02:19 and this one was cut out at the same time right beside it and it’s got bubbles in it,

00:02:19 –> 00:02:27 and it’s got a funky back, so that is how I baked my flat pieces on a tile sandwich,

00:02:27 –> 00:02:28 alright?

00:02:28 –> 00:02:33 So I hope that was helpful for you, if it was, do make sure to leave a comment and let

00:02:33 –> 00:02:34 us know.

00:02:34 –> 00:02:40 And don’t forget, if you have any suggestions like SweetBioDesign had, where you have something

00:02:40 –> 00:02:46 that’s a challenge, make sure to check out our previous videos, we may have already done

00:02:46 –> 00:02:51 a video on it, but if not, you can leave your suggestion in the comment section below and

00:02:51 –> 00:02:56 hopefully we can get to filming that problem for you, alright?

00:02:56 –> 00:02:58 So we’ll see you next time and bye for now.

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Baking Flat Polymer Perfectly Every Time Vid-676

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  • Bryanna Noel says:

    Hi Cindy, I was just curious on the baking. I’m assuming baking with paper is not going to catch fire or anything? Also, usually I bake things at 275 for 15 minutes. It won’t burn if I back for an hour?

    • Hi Bryanna,

      Paper won’t burn at the temperatures we use for clay. The clay will also not burn as long as you stick to 275. In any case, it’s better to bake the clay covered with a foil pan or paper tent of some kind. This way any fumes due to spikes will be contained. 15 minutes isn’t enough to make strong, durable pieces.

  • Susan Higgins says:

    Cindy,

    I am covering tin boxes with sheets of polymer clay before decorating them and no matter how careful I am, I still get bubbles. On the one I backed today, I put a sheet of stock paper and then a tile on top but I still got bubbles. What am I doing wrong or other steps do I need to take to prevent bubbles.

    Susan

  • That was helpful! Actually I never realized baking a flat tile flat was a problem, but then I’ve never tried that particular event. However, one day I will . . . . Thanks

  • Dixie Ann says:

    Hi Cindy, thanks for the recap on baking flat pieces. I was just getting ready to make a journal cover and texturize it with a couple of the Kor-Tools. Do I still want to bake it ala sandwich style after I have manipulated the clay sheet with a textured design or should I leave the top tile off? I have never tried this so I am concerned about any bubbles showing up on the backside with no weight on top.

    • Hi Dixie Ann, if you stick it down to the paper well with no air pockets you can bake without the top tile if you want. If you are still concerned, I would bake for about 10-15 miens without the tile, to set the pattern, then add the tile to bake the rest of the hour. That should help prevent bubbles without ruining your texture.

      • Dixie Ann says:

        Thanks Cindy, that sounds like a great idea. Also do you want a copy of my sales for the Jool Tool send to you. I purchased it several months ago. I can scan it as a PDF and email it to you if you wish. Let me know.

  • Krithika P says:

    I found this tip in a discussion somewhere on this blog and I’ve been baking flat pieces like this for the past two weeks. This definitely helps with bubbles and preventing pieces from curling up. But I’m still seeing a weird sort of depression in the center of my flat pieces: like the center of a cake might sink, just a touch. This isn’t visible until I start sanding, and it takes so long to get the whole piece level. Does this happen to anyone else?!

    • Hi Krithika, make sure to stick your piece down to a piece of paper first before baking… this should help with that weird depression on the back.

      • Krithika P says:

        I do put the clay face down onto a piece of paper. I’m experimenting with using a bone folder to “burnish” the paper on the clay lightly before I put it between the tiles. I’ll see if that helps!
        Also, I use plain paper from a letter pad that’s a nice size for the tray and tiles I use. I notice they seem to get all wonky. I wonder if using stiffer card stock will help.

  • So much to learn. Thanx Cindy for your insights :)

  • This video was only a couple days late! I had just made a journal cover and I had problems with the pieces bending and getting bubbles.

  • Thanks for the tip! I’ve always wondered how to get rid of the bubbles I sometimes get in my clay.

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