Tag Archives: sculpture

Clay: Hard or Soft? What do Professional Sculptors Use?

In the Oscar-nominated movie Camille Claudel, we see the French sculptor voraciously digging mud from the clay walls of a deep trench in Paris. The imaginary aroma of wet clay fills your nostrils as you watch the mud squeeze through her fingers.

Fortunately today, artists no longer have to dig through dirt and mud and haul it to our studios (along with the water), nor do we have to build our own armatures.

The kind of clay a sculptor uses depends in large part on what the artist intends to create with it and how it will be cast when they are finished.

Modeling clay comes in oil or water-based. They also come in dry form that you add water to. (Japanese potters often do this for their signature pieces).

Clay’s come in many colors; grays, yellow ochres, reds, white or black. Each has its own character and fires differently in a kiln. Most sculptors experiment when they begin to determine what colors and plastic properties work for their style. Price plays a factor too of course. Clays can be purchased in five to 50-pound packages.

Some clays are soft, others have a harder consistency. A harder clay is better for smaller sculptures as it preserves more details. Softer clays allow artists to manipulate large areas easier so work better with larger pieces of sculpture.

Water-based clays often need grog added to it. Grog is clay that has been fired and then ground up. It gives your clay tooth and gives it strength. It also keeps the clay from cracking, reduces shrinkage, and allows gases to escape in the clay body.

Clay will dry out and become very fragile and must be re-wet and covered in between sessions.

The International Sculpture Center provides a list of Art Services and Suppliers including art supply stores, installation, and moving companies by geographic location. They also publish Sculpture Magazine.


Image by Elé Van Schoor of Marlborough College from a Luke Shepherd Sculpting course. Clay portraits will be cast in bronze.

Uriél Danā at the Getty MuseumUriél Danā has been a Professional Fine Artist 39 years and is a Contributing Editor on the arts and other subjects for two online arts magazines. Uriél is an Air Force Veteran and former USIA (State Department) Ambassador to the Arts.

She is a graduate of the 2016 Writers Guild of the West (Los Angeles, CA) Veterans Writing Project. A Contributing Editor on the Arts, Buddhism and Culture, Uriél contributes regularly to online and print magazines in addition to international journals. She has won many awards for her poetry and has been included in two anthologies.  For National Poetry Month in 2020, her poems were featured on San Francisco’s public radio station, KPFA.

A resident of the San Francisco Bay Area, Uri has lived on three continents and visited 44 countries.

Écorché: The Art and Science of Seeing Through Others

Écorché is a word coined by the École Des Beaux Arts to describe a figure that is drawn, painted, or sculpted without skin to reveal the muscles and bones below. It literally translates to “flayed or skinned”.

Écorché Woman
Écorché Woman

In Western Europe this teaching practice went back to the Italian Renaissance. Long associated with masters such as Leonardo da VinciAndreas Vesalius & Honore Fragonard, it is used today as a form of study for the human form at many top art schools including the New York Academy of Art, the Art Students League of New York and the Florence Academy of Art in Italy.

Without mastery of the human figure, its skeleton and muscle masses, figures in art look rubbery or the portrait equivalent of the clay humanoid animation Mr. Gumby.

Écorché, Antonio Durelli 1837 red chalk and pencil
Écorché, Antonio Durelli 1837 red chalk and pencil

Occidental anatomy is the structural foundation for realism in drawing, painting, or sculpture, but also for medical treatment and forensic facial reconstruction.

Christians believed the body and the soul were connected and forbade doctors from viewing (much less dissecting) the human body.

Écorché - Leonardo da Vinci
Leonardo da Vinci

It was not until the election of Pope Boniface VIII (d.1303) was the practice allowed. Even so, it was not until a century later during the early Renaissance for these studies to be embraced. Leonardo da Vinci (b.1452-d.1519) emerged as a major contributor and became known as the artist-anatomist to the new science of “anatomy”. He was the first to draw a fetus in utero but unfortunately got many of the female reproductive organs incorrect. (Female corpses were difficult to come by).

Finding cadavers to develop this practice is as interesting as the drawings themselves.

A sketch by Michelangelo di Buonarroti
A sketch by Michelangelo di Buonarroti

When Michelangelo was seventeen he stayed at the convent of Santa Maria del Santo Spirito in Paris after the death of Lorenzo de’Medici. Its hospital regularly practiced dissection on its bodies. Michelangelo traded his sculpting abilities to make a crucifix for their Basilica in exchange for access to their corpses.

Many cadavers up to 200 years ago have been hanging victims.

Jiwoong Cheh, Sculptor
Jiwoong Cheh, Sculptor

Medical schools advanced quickly when painters and sculptors began working with doctors. By the 17th and 18th century, dissections became a standard practice in medical schools. A few doctors were also artists.

Doctor Paul Richer (1849-1933) sculpted the Living Ecorché to stress the significance between the interior and exterior forms of the body.

In the East, écorché is known as Jing-Shui and it was mastered 1500 years before the West. During the Chinese Han Dynasty (16 C.E.), Emperor Wang Mang ordered the body of a criminal to be slowly deconstructed from skin to bone. Everything was recorded and drawn systematically. Bamboo rods were inserted into blood vessels to discover where they began and where they ended. It was the foundation of what we now know as acupuncture.

Repin State Academic Institute "Anatomical & Figure Drawing"
Repin State Academic Institute “Anatomical & Figure Drawing”

Today artists and healers use écorché models made from plaster, wax, wood, wax, resin, bronze, ivory, and even apps on their phone.

Medical schools still dissect bodies for their training. Bodies donated to science are given to nonprofits such as The Anatomical Gift Associationwho embalm and transfer them to institutions. (Only bodies with all their organs are accepted).

As of 2018, member medical schools pay about $1300 per corpse, non-members $2300.

Thank you for reading this article. For more articles on what galleries look for in an artist and other art eccentricities, please click through to the articles below.


Cover image:  Scott Eaton Anatomy Course