Clay

CAW has four types of clay available for use:                                                                                                           Brown Stoneware   ( High fire – Cone 10 )                                                                               White Stoneware    ( High fire – Cone 10 )                                                                                   Porcelain             ( High fire – Cone 10 )                                                                            Red Terra Cotta        ( Low fire – Cone 05 )

These bodies are inherently different; they have unique handling qualities as well as unique firing properties. Work with only one type at a time. Clean your tools and wheel throughly when switching types, or maintain entirely dedicated sets of tools for each type of clay you intend to use.

Elements of one clay body should not be mixed with another clay body on a single piece. Keeping the clay bodies separate from one another in the studio, and free from contamination is important to maintain overall quality. Red terra cotta must never be submitted for a Cone 10 firing because it will collapse, melt, and lead to destruction in the neighboring area.

Clay Access:   Brown stoneware is always available at no charge for throwing and handbuilding. It is located in the blue plastic barrels under the studio chalkboard. After you take some clay, be sure to replace the barrel lid immediately so that the remainder of the clay inside will remain moist.  If barrel clay is low or empty, a studio potter can bring bagged brown stoneware out from our storeroom.

The other clay bodies are also available as bagged clay, but there is a charge. The clay becomes your personal property and needs to be stored on your shelf.  There are small recycle barrels for each type near the sink.

The clay charge per bag is:                                                                                                                                          White Stoneware:    $ 10.00                                                                                                                    Porcelain:    $ 17.00                                                                                                                  Terra Cotta:    $ 10.00

Reclaiming Clay : We need your help to improve both the quality of the clay we use, and to reduce the amount of clay we need to recycle. Only throw slurry and clay which has dried to leather-hard or bone dry into the recycle buckets.

For brown stoneware, all other clay should be rewedged and returned to the usable blue clay barrel :

  • If the clay is too dry, wet it and re-wedge it.
  • If the clay is too wet, spread it out on the reclaiming plaster bat to dry, and then re-wedge it.

Be sure to return your reclaimed clay to the appropriate bag or barrel to avoid contaminating a different clay body. Return your reclaimed clay in the condition in which you would like to find it.

Recycling Clay:      If you cannot reclaim your clay because it is either too wet or too dry, then dump it into the correct recycle bucket. For brown stoneware, the recycle barrel is the same size, color, and shape as the useable clay barrel – so LOOK CAREFULLY to avoid dumping slop into the good clay.

Dump your recycle gently to avoid splashing slurry onto the floor and adjacent storage shelves. Also, check your bucket carefully before you dump it, remembering there may be sharp objects hidden in the slurry ; remove all tools, sponges, and other non-clay objects before emptying the contents.

Contaminated Clay: It is extremely important that reclaimed and recycled clays be sorted into the appropriate buckets and barrels to avoid contamination. If several clays have been mixed together, or colored slips/oxides have been added to white stoneware, the clay is no longer recyclable and needs to be discarded, which does not mean dumped down the sink – discard contaminated clay by putting it into an empty plastic clay bag, seal or tie the bag, and dispose in the clay trash can near the kiln room door.

Trimmings from the floor may or may not be contaminated. Use your best judgement on whether they should be recycled or trashed.

Other Clay Bodies:     No one may bring outside clay into the studio. Only clay provided by CAW can be used. The limited available storage space and the increased likelihood of clay contamination and kiln accidents necessitate this policy.

..

..

..

..

..

.

.

.

.

.

.

.

.

.

.

.

.

3 Responses to Clay

  1. Great awesome things here. I am very glad to see your post. Thank you so much and i’m having a look forward to contact you. Will you please drop me a e-mail?

  2. Pingback: clay

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s