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Topic: Watercolors on white sculpty?  (Read 965 times)
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« on: May 05, 2007 02:12:26 PM »

I have some original white sculpty, and I'd like to paint some stuff I made with it, but all I have is watercolors. Will these work, or will they not stick to the clay?

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Diane B.
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« Reply #1 on: May 05, 2007 05:49:13 PM »

You may be able to, but dried watercolors (or watercolor pencils) will be water-soluble without a waterproof covering and may (even then) bleed into the clay.

However, "original" white Sculpey (in the box) is the most porous of the brands and lines of polymer clay so it has more "tooth" for actually being painted or drawn on after baking than SuperSculpey (boxed, flesh-colored) and Sculpey III (bars, colors) would ... but those are all somewhat better than FimoSoft, Premo, FimoClassic and definitely Kato Polyclay (which is so dense it has a slightly shiny natural finish). (Btw, any time you want to paint on top of baked clay, be sure and degrease the surface first with a bit of alcohol for best adhesion). 

So according to the info I've gotten (which is not much because most clayers prefer acrylic paints, alcohol inks, pastel dust --or soft colored pencils or perhaps watercolors pencils, the bleeding might be a problem or not, and may also depend on how sharp you need the edges of colors to be over time:


True watercolour paints and gouache are prone to bleeding on polymer clay.
. . . .they dry fine, but after a year or two, especially on translucent clays or flesh-colored clays, they begin to bleed.
.... I have a mini tea set, about 5 years old that was made with FimoClassic translucent... the red flowers have sort of flowed through the clay, even under the varnish topcoat they only go on after careful de-greasing (gouache is best but they are even more unstable than acrylic). Sue

Sue, have you tried watercolors ...and also watercolor pencils?
...a very-thin layer of translucent clay (#7 on the pasta machine) applied and baked over the watercolor, then sanded and buffed, and you have beautiful enamel like color that wont wear off, and isnt as glossy as liquid varnish
...the best (and cheapest) sealant that I've used is diluted PVA glue (white glue).... can dilute it with water to any consistency
......the beauty of this polymeric glue is that it doesn't react with clay plasticisers, will withstand our baking temps, and is completely clear when it dries.
.....after you've drawn or watercolored on clay, this works wonderfully well. Alan V..
(But... do these sealers also prevent bleeding into the clay after a year or two?)


Also, I don't know about fading.  I know that tempera paints will fade over time on or in polymer clay, but not sure about watercolors.

If you'd like to know other and better ways of "painting" on top of polymer clay though (which can even be done with thinned polymer clay or with tinted liquid polymer clays), check out these 2 pages then click on the categories listed:

Preparing the Clay for Painting
Acrylic Paints
Polymer "Paintings"
Water-Soluble Paints
Colored Pencils (waterclor pencils)

(Inks for Tinting > Alcohol Inks > Uses > Surface Techniques)


Diane B.

« Last Edit: May 07, 2007 11:18:13 AM by Diane B. » THIS ROCKS   Logged

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