So this week, I decided to try making some push molds, using a 2 part silicone compound.
To make molds, you take approximately equal amounts of each color of putty, mix them together and then press your object into the putty.
In a few minutes the putty hardens into a rubbery silicone mold. You then remove the object and viola, you have a mold into which you can press your polymer clay. It sounds easy and fun.I gave it a go earlier this week, using some buttons that had interesting textures. But all the molds I made were lopsided. It turns out that it is a bit tricky to press the button into the molding compound with exactly the same pressure on all sides. Fellow AJE team member, Kristi Bowman, suggested that I try pressing the molding compound onto my objects, rather than pressing the objects into the mold.
So that's what I tried yesterday. I used a fun flower shaped magnet and pressed a layer of molding compound onto the flower side. Then I added more compound and built it up around the bottom and the edges, so it would be thicker, (when I made molds the first time, several were too thin on the bottom and they tore).
When the compound hardened, I popped out the magnet and this is what I had.
It's certainly better than my first attempts, (for which I have no pictures), but if you look carefully at about the 9:00 position, you'll see that some of the petals have dents in them. I think this is because I un-molded the magnet too soon and I damaged the still-soft mold while trying to get the magnet out.Then I went through the same process with a heart shaped faux cinnabar bead.
I'd only worked with light colored polymer clay so far, so I decided to try something darker. I mixed one part black clay with three parks purple clay. The purple was quite bright, so I wanted to mute it a bit.
I pressed the polymer clay into the molds, popped it out, added holes at the top and placed the shapes on a piece of cardboard.
I placed the cardboard on top of a pizza stone that came with the oven, but you can also use an unglazed tile. Then I covered it with an small inverted loaf pan and baked it for 45 minutes at 275F.
They came out of the oven nice and firm, but quite a bit darker than I had hoped. I wanted a muted purple, like an aubergine, but these were nearly brown. So I used some paints, in many layers, including some brighter highlights. That helped, but it is still not quite what I had pictured in my mind.
Its clear to me that I am still in the practice mode, with lots left to learn. However, I keep reminding myself that I learn a lot when the outcome is less than what I'd hoped for. Its a process and I'm learning step by step. And, hey, I burnt my first batch of polymer clay and I've never made that mistake again!
Linda
Linda Landig Jewelry – Etsy