Abstract: An improved refractory support (kiln furniture) and a method of manufacture. The composition of the refractory support reduces the likelihood that it will adhere to the article which it is supporting during manufacturing. The kiln furniture is formed from bound ceramic fibers of aluminosilicate and alumina with a ground particulate filler of aluminosilicate and alumina, and refractory reactive binder of alumina and silica in a colloidal form.

Abstract: A support unit, e.g. a setter, is designed for convenience of stacking both in use and in the stored condition. Each unit (10, 20, 20A) is of circular plan outline and has a rim (13) having alternate upwardly-and downwardly-disposed castellations (14 and 15 respectively) whereby a pair of units (20, 20A) can be stacked closely together with their upper castellations (24, 24A) contiguous and their lower castellations (25, 25A) contiguous or can be stacked in the `use` position with the lower castellations (25A) of an upper unit (20A) resting on the upper castellations (24) of a lower unit (20).