Kiln Shelf 18 x 21 in Half-Round

18" x 21" Half-Round Kiln Shelf

Dimensions: 18" x 21" x 3/4" (457 x 533 x 19mm).

Fits Evenheat/Skutt Kilns (25 x 41"). Made from cordierite, a low thermal expansion calcine type of refractory clay. Has heat tolerance of over 2150 degrees F. Smooth and flat, will accept shelf primer to keep glass from sticking to the shelf.