Now, a little guide on different deco icing options. Yay!
I made these donuts for decoden purposes. These donuts were an experimental test run of different kinds of materials I had available to use as icing. The donut with chocolate glaze is the one made with polymer clay (Kato-Cernit mix), the other 3 with cold porcelain.
So from left to right, the icing materials and a summary of them, are:
Banana icing is acrylic paint with glaze for shine. You can use impasto, corn starch or acrylic modelling paste to thicken the paint.
Chocolate icing is liquid polymer clay (Kato) coloured with oil paint and Pearlex mica. It is slightly flexible when set and is translucent. I reserve the liquid PC for more detailed pieces and those needing baking. Also because it isn't cheap.
White icing is modelling paste on its own (Mont Marte brand) with microbead sprinkles. It dries sateen, so if you want a realistic cream compared to silicon caulk, this is the one for you!
Strawberry icing is epoxy resin glue coloured with oil pastels (oil paint is fine too and has no specks). No, it is NOT
casting resin, which is less viscous and will drip off the curved surface in the time it takes to cure. This epoxy sets firmly in 5 minutes; work quickly. You don't need an expensive brand, one bought at a dollar store will do. This is a good translucent alternative to liquid PC if it's too expensive, unavailable, or your piece can't be baked.
Not shown is the acrylic gap filler icing. It needs to be used with a caulking gun. Its properties are very similar to modelling paste, but gap filler dries quicker, is more matte and grainier. The grainy texture is very, very fine, but is still pleasant to use for decoden. It is also CHEAPER than modelling paste: AUD$11/500ml (modelling paste) compared to $4/500ml (gap filler).
I'll probably be making more batches of sculpts using different materials and reviewing them. I'm testing the waters so that n00b-eating sharks (read: deco disasters) don't eat you.
Hope this helped!