White

When the brick or tile leaves the press, with a very soft brush cover the part to be glazed with No. 1 Slip; afterwards dip the face in the same mixture.

No. I Slip

Same clay as brick ..       9 parts

Flint..............       1 part

Ball clay...........       5 parts

China.............       4 parts

Allow the brick to remain slowly drying for 8 to 10 hours, then when moist dip in the white body.

White Body

China clay.........     24 parts

Ball clay...........      8 parts

Feldspar...........      8 parts

Flint..............       4 parts

The brick should now be dried slowly but thoroughly, and when perfectly dry dip the face in clean cold water, and immediately afterwards in glaze.

Hard Glaze

Feldspar...........   18 parts

Cornwall stone.....     3.5 parts

Whiting...........     1.5 parts

Oxide of zinc.......     1.5 parts

Plaster of Paris.....       3/4 part

Soft Glaze

White lead.......... 13 parts

Feldspar............ 20 parts

Oxide of zinc........ 3 parts

Plaster of Paris...... 1 part

Flint glass.......... 13 parts

Cornwall stone...... 3.5 parts

Paris white.......... 1.25 parts

Where clay is used that will stand a very high fire, the white lead and glass may be left out. A wire brush should now be used to remove all superfluous glaze, etc., from the sides and ends of the brick, which is then ready for the kiln. In placing, set the bricks face to face, about an inch space being left between the two glazed faces. All the mixtures, after being mixed with water to the consistency of cream, must be passed 2 or 3 times through a very fine 'lawn. The kiln must not be opened till perfectly cold.

Process for Colored Glazes

Use color, 1 part, to white body, 7 parts. Use color, 1 part, to glaze, 9 parts.