So, let's make cold porcelain -
The recipe will be different depending mainly on the brand of glue you use – for this one I used Elmer’s Glue-All – a white pva glue.
2 cups Glue
½ cup water
3 cups cornstarch
2 tablespoons baby oil
Plastic microwavable bowl
Strong wooden spoon or flat stick
Cup and Tbs measures
Spatula or blunt knife
Put all the ingredients in your plastic microwavable bowl, stir together until they are fairly well combined.
NOTE – all microwave ovens are different – some cook super fast, some very slow.
Your cooking times will also depend also on the size of your bowl in relation to the amount of clay you are making – big bowl, little clay, it may take longer, big bowl, lots of clay may be slow at first then cook really fast once it gets hot.
So, err on the slow side at first – I do 1 min @ 10% or the lowest setting first – if it is barely warm I move to 1 min @ 30%.
When the mix starts to get significantly thicker, harder to scrape off and stir, shorten your microwave times to 45s
When it's ready it will hold fairly well together when you mix it in the bowl and it will not stick to your fingers anymore when you press your fingers in.
BUT it's okay to take it out when it's still a little sticky and knead in more cornstarch: In general, it's better to UNDERcook a little than to overcook.
Sprinkle a generous layer of cornstarch on your table and over your hands.
If you choose to wash out your bowl, make sure you allow a lot of water to flow so the gluey mix does not clog your drains.
But, don’t clean up now – you need to pay attention to finishing your clay – so, cover your hands in lots of cornstarch and knead your dough.
Caution – your clay may be very hot – so check first before you plunge your hands in. But start kneading as soon as it reaches a temperature you can handle – if you leave it too long, a crust will start to form.
Dust your hands - no, smother them in cornstarch - and start to knead.
You’ll find it easily kneads into smooth consistency dough. Pull it apart to get the insides to the outside and make sure the whole dough get mixed in during kneading.
Put it in a plastic bag and tie it.
Colouring The Clay
You can easily colour this clay using any water based paint - acrylic, poster, watercolour, food colouring will all work. Some oil paints will also work but they may cause it to dry very slowly or may not mix in and will exude oil so be careful and try it out on a small bit first.
NOTE: Opaque paints will make your clay more opaque, translucent paints will help keep it see-through if you want to make decorations that the light will shine through.
You’ll find it can get quite wet without becoming sticky if it is made well. And at the other end of the spectrum, don’t mix it until it starts to dry out either! You can add in more paint i.f you want a stronger colour
When you’re done colouring, and marbling, pop the clay in a plastic bag and tie it off.
Let us know if you try this out - and if you have any questions - just pop it all in the comments box - love to hear from you.
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