Also see PDFs, Downloads, General Info for more specific information.
Every individual who comes in contact with clay, glazes and other
ceramic materials should be aware of the health hazards involved. The
most dangerous materials are found in the form of dry dust, airborne
glazes and kiln fumes, all of which can enter the body through the
skin, inhalation and ingestion.
Free silica, which is contained in clay dust, feldspar, and talc
can be hazardous through long term absorption or inhalation. The
following materials can be especially hazardous: barium, cadmium,
chrome, lead, lithium, manganese, Mason Stains, nickel, potassium,
selenium, and vanadium.
For your safety we suggest the following procedures while working with ceramic materials:
- Always wear a mask and other protective clothing.
- Keep your area clean at all times.
- Read all warnings, directions, and labels.
- Do not eat, drink, or smoke in ceramic areas.
- Wash thoroughly after working.
- Install fans and other ventilation equipment where necessary.
We also have available an AMACO brochure titled
"Art Material Safety in the Classroom and Studio." See PDFs, Downloads, General Info
All of our clays are certified nontoxic in accordance to the
ASTM-D-4236 standard. This is an ongoing process, please contact us if
you have a specific question on a particular clay body or ingredient.
CONFORMS TO ASTM PRACTICE D-4236
Testing of raw materials should be an integral part of ceramic
manufacturing. Upon receipt of any new material, we strongly recommend
that you test the material. Sheffield Pottery, Inc.
has no control over either the variations that may occur in the natural
materials or their application. Therefore, our products are sold with
the understanding that the user is solely responsible for determining
suitability for any purpose and the results obtained. There are no warranties expressed or implied, regarding the user's finished product or results.