Henley's Twentieth Century Formulas, Recipes and Processes

by Unknown

Earthenware.

I.—	Flint	108 parts
	China clay	45 parts
	Paris white	60 parts
	Borax	80 parts
	Soda crystals	30 parts
	To mill:
	Frit	270 parts
	Flint	20 parts
	Paris white	15 parts
	Stone	80 parts
	White lead	65 parts
II.—Frit:
	Flint	62 parts
	China clay	30 parts
	Paris white	38 parts
	Boracic acid	48 parts
	Soda crystals	26 parts
	To mill:
	Frit	230 parts
	Stone	160 parts
	Flint	60 parts
	Lead	120 parts
III.—Frit:
	Stone	56 parts
	Paris white	55 parts
	Flint	60 parts
	China clay	20 parts
	Borax	120 parts
	Soda crystals	15 parts
	To mill:
	Frit	212 parts
	Stone	130 parts
	Flint	50 parts
	Lead	110 parts
	Stain as required.
IV.—Frit:
	Stone	100 parts
	Flint	44 parts
	Paris white	46 parts
	Borax	70 parts
	Niter	10 parts
	To mill:
	Frit	200 parts
	Stone	60 parts
	Lead	80 parts

Pearl White Glaze.

Flint	50 parts
Stone	100 parts
Paris white	20 parts
Borax	60 parts
Soda crystals	20 parts
To mill:
Frit	178 pounds
Lead	55 pounds
Stain	3 ounces

Opaque Glaze.

Borax	74 parts
Stone	94 parts
Flint	30 parts
China clay	22 parts
Pearl ash	5 1/2 parts
To mill:
Frit	175 parts
Lead	46 parts
Flint	10 parts
Oxide of tin	12 parts
Flint glass	12 parts

Glaze For Granite.

I.—	Stone	100 parts
	Flint	80 parts
	China clay	30 parts
	Paris white	30 parts
	Feldspar	40 parts
	Soda crystals	40 parts
	Borax	80 parts
	To mill:
	Frit	360 parts
	Flint	50 parts
	Stone	50 parts
	Lead	80 parts
II.—Frit:
	Borax	100 parts
	Stone	50 parts
	Flint	50 parts
	Paris white	40 parts
	China clay	20 parts
	To mill:
	Frit	210 parts
	Stone	104 parts
	Flint	64 parts
	Lead	95 parts

Raw Glazes.

I.—	White lead	160 parts
	Borax	32 parts
	Stone	48 parts
	Flint	52 parts
	Stain with blue and grind.
II.—	White lead	80 parts
	Litharge	60 parts
	Boracic acid	40 parts
	Stone	45 parts
	Flint	50 parts
	Treat as foregoing.
III.—	White lead	100 parts
	Borax	4 parts
	Flint	11 parts
	Cornwall stone	50 parts
IV.—	Red lead	80 parts
	Litharge	60 parts
	Tincal	40 parts
	Stone	40 parts
	Flint	52 parts