With their painted surfaces, delicate areas, and use of non-standard materials that would not survive the heat of a kiln, my air dry clay horse sculptures differ from a lot of traditional equestrian art.
I often get asked about how air dry clay and ceramic differ, and in response, I’ve prepared this primer as a reference about the the main variations between earthen clays and air dry clay.
In this article, I'll refer to 3 types of clay:
1. No Special Equipment Needed
This is easily the most wonderful feature of air dry clays: Most air dry clays are non-toxic and do not require any special tools or equipment, such as an expensive kiln.
2. Clay Can Be Layered
Man, oh man, do I love this. As you may know, once a ceramic piece is bone dry (prepped for firing) or is fired, no new material can be added. You’re stuck with what you’ve got, even if it’s cracked! With CPC, you can fix imperfections and make adjustments indefinitely because fresh clay can be added on top of dried.
3. Unique Structures Are Possible
Unlike ceramics, air dry clays can (and should) utilize internal armatures to strengthen the sculpture. Using an integrated armature means that I can build very thin structures (like horse legs) while still having them very strong.
4. A Different Kind of Durability
While ceramic is strong, it's also inflexible and has a tendency to shatter when dropped. CPC, on the other hand, dries to the consistency of a soft wood and therefore has a very slight amount of give. As a result, it's more likely to dent or chip rather than break apart. An internal armature gives it added strength.
Case study: A commission for a client was returned to me for repairs when the sculpture was knocked over onto a metal grate from the top of a fireplace. The height of the fall (onto metal, no less) would likely have shattered a ceramic piece with such delicate extremities. However, this CPC and epoxy piece merely had a bent leg and broken ear, both of which were repaired.
5. Can be Combined With Other Media
This is a big one: While ceramic pieces can have other materials added after they have been fired, air dry clay sculptures can have these unique materials integrated right from the beginning where they form an integral part of the sculpture.
Not even polymer clay can boast this because it also needs to be baked in an oven.
A good example is the piece below “Suspending Gravity II” where armature wire provides support, but also defines the shape of the foal.
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