No-Flake Firing Foil is perfect for firing bronze clay, copper clay, PMC PRO, and Accent Silver. Fine silver clays can also be sintered/fused in a No-Flake Pan. Firing fine silver in carbon is a good way to incorporate low-fire cubic zirconia, lab and natural gems (including diamonds) that would change color or be damaged if fired on an open kiln shelf.
Firing metal clay in a stainless steel container, makes a mess on the inside of the kiln and around the pan. Stainless steel makes a good container for carbon firing because it can withstand the high temperatures needed to sinter metal clays, but the extreme heat oxidizes and expands the metal. As the metal cools, tiny flakes of oxidized stainless steel begin popping off the surface in a process known as spalling. Spalling can continue for hours after every firing and this is what leaves black flecks everywhere.
No-Flake Firing Foil solves this problem by using a special alloy that does not spall. No flake firing foil includes instructions for folding a firing box that can be made to a size that fits your kiln.
Please note graphic shows a constructed firing box made out of No-Flake Firing Foil. This sale includes No-Flake Firing Foil and the instructions for making a No-Flake Firing Foil container.