In the art clay tutorial it shows a piece being created that has a bail, how is the bail attached? Does it adhere during the firing process? Also I work a lot with sea glass, any suggestion on how to accommodate for shrinkage, or will the glass withstand the firing process. Thanks.
The bail has feet on it which can be set or pressed into the clay while it is still pliable.
Art Clay paste is then applied to the clay after it has dried to aid in sealing the edges between the clay and the bail. This creates a more secure bond, as well as fills in any holes or cracks producing a seamless finish between the two surfaces. When fired in the kiln, the clay sinters (bringing the metal particles together with the use of high heat) and bonds with the fine-silver bail uniting the two pieces.
As for working with glass, Art Clay shrinks approximately 8 percent. When designing a piece where you will set a stone, a bead or a piece of glass after firing, it is recommended to sketch your desired finished design and then slightly enlarge the drawing on a copier so the shrinkage is taken into account. Use the enlarged drawing as a guide when creating your piece in Art Clay. To accommodate the sea glass, consider creating a bezel or a design with prongs that can be used to set the glass after firing.
Glass can withstand being fired; each type of glass has a different heat tolerance and marrying the metal and the glass can be a little tricky. Given you have found your glass it would be difficult to know what temperature each piece will be able to withstand and what results you would achieve. Also, sea glass has a nice frost to it--this frost would most likely be lost in the firing process even if it survived.