On February 16th, 2018 Ms. Beata Radzikowska, an interior designer and art fan, ran an artistic workshops for seventh graders. A well-known but often underestimated modeling clay was a major medium of the workshops.
Modeling clay is a dough made from petroleum jelly mixed with calcium carbonate, chalk mixed with fatty acid (most commonly stearics) used for [multidimensional] modeling. The dough becomes shapeable in a temperature similar to human body temperature whilst in room temperature it loses its flexibility, however never hardens for good.
The advantages of modeling clay are the following:
- it is reusable
- it doesn’t dry out
- it is non-toxic
- it is dirt-resistant
It requires to be slightly warmed-up in hands by rubbing it or by placing in a bowl of warm water before use.
Modeling clay was discovered by a pharmacist Franz Kolbe in 1880. The other alleged inventor of modeling clay is an Englishman, William Hartbutt, a sculpture tutor, who was trying to devise a material which would have similar qualities to clay and be reusable.
Modeling clay is commonly used for:
- educational games
- minor repairs such as sealing
Seventh graders used modeling clay to decorate cups. Five different colors of modeling clay were combined together in a form of roulade, which was later sliced into very thin pieces and attached to the cup. As such the effect of colorful mosaic was obtained.