Cement To Mend Iron Pots And Pans

Take 2 parts of sulphur, and 1 part, by weight, of fine black-lead, put the sulphur in an old iron pan, holding it over the fire until it begins to melt; then add the lead, stir well until all is mixed and melted, then pour out on an iron plate, or smooth stone. When cool, break into small pieces. A sufficient quantity of this compound being placed upon the crack of the iron pot to be mended, can be soldered by a hot iron in the same way a tinsmith solders his sheets. If there is a small hole in the pot, drive a copper rivet into it and then solder over it with this cement.

London Cement

Boil a piece of old cheese three times in water, each time allowing the water to evaporate. Take the paste thus left and thoroughly incorporate with dry quick-lime. It willl mend glass, wood, china, etc., very effectually.

Cement For Wood Vessels Required To Be Water-Tight

Take lime-clay and oxide of iron, seperately calcined and reduced to fine powder, then intimately mixed, kept in a close vessel, and mixed with the requisite quantity of water when used.

Cement For Leather

A good cement for splicing leather for straps is gutta-percha dissolved in bisulphide of carbon, until it is of the, thickness of molasses; the parts to be cemented must first be well thinned down, then pour a small quantity of the cement on both ends, spreading it well so as to fill the pores of the leather, warm the parts over a fire for about half a minute, apply them quickly together and hammer well. The bottle containing the cement should be tightly corked and kept in a cool place.

Marble Cement

Take plaster-of-Paris and soak it in a saturated solution of alum, then bake in an oven, the same as gypsum is baked to make it plaster-of-Paris; after which grind the mixture to powder. It is then used as wanted, being mixed up with water like plaster and applied. It sets into a very hard composition capable of taking a very high polish, and may be mixed with various coloring minerals to produce a cement of any color capable of imitating marble. This cement is also used for attaching glass to metal.

Chinese Cement

Finest pale orange shellac, broken small, 4 oz., rectified spirit, the strongest, 3 oz., digest together in a corked bottle in a warm place until dissolved; it should have the consistency of molasses. It is used for wood, glass, ivory, jewelry, and all fancy works.

Cements For Cracks In Wood

Make a paste of slacked lime 1 part, rye meal 2 parts, with a sufficient quantity of linseed oil. Or, dissolve 1 part of glue in 16 parts of water, and when almost cool, stir in sawdust and prepared chalk a sufficient quantity. Or, oil-varnish thickened with a mixture of equal parts of white-lead, red-lead, litharge, and chalk.

How To Mend China

Take a very thick solution of gum arabic in water, and stir into it plaster-of-Paris until the mixture becomes of a proper consistency. Apply it with a brush to the fractured edges of the china, and stick them together. In three days the articles cannot be broken in the same place. The whiteness of the cement renders it doubly valuable.

Stone-Mason's Cement

Clean river sand 20 lbs., litharge 2 lbs., quick-lime 1 lb., linseed oil, sufficient to form a thin paste. This cement is used to mend broken pieces of stone, and after a time it becomes exceedingly hard and strong. A similar composition has been used to coat brick walls, under the name of mastic.

Fire-Proof And Water-Proof Cement

To 4 or 5 parts of clay, thoroughly dried and pulverized, add 2 parts of fine iron filings free from oxide, 1 part of peroxide of manganese, 1/2 part of sea salt, and 1/2 part of borax. Mingle these thoroughly and render them as fine as possible, then reduce them to a thick paste with the necessary quantity of water. It must be used immediately. After application, it should be exposed to heat, gradually increasing almost to a white heat. This cement is very hard, and presents complete resistance alike to a red heat and boiling water.

Another Method

To equal parts of sifted peroxide of manganese and well-pulverized zinc white, add a sufficient quantity of commercial soluble glass to form a thin paste. This mixture, when used immediately, forms a cement quite equal in hardness and resistance to that obtained by the first method.

Armenian, Or Jeweler's Cement

Dissolve 5 or 6 bits of gum mastic, the size of a large pea, in as much spirits of wine as will suffice to render it liquid; in a separate vessel dissolve as much isinglass (previously softened in water, though none of the water must be used) in rum, or other spirit, as will make a 2-oz. phial of very strong glue, adding two small pieces of gum ammoniacum, which must be rubbed or ground till they are dissolved; then mix the whole with a sufficient heat. Keep it in a phial closely stopped, and when it is to be used, set the phial in boiling water. The preceding is also effectual in uniting almost all substances, even glass, to polished steel.