Take 5 lbs. of clear good resin, pound it well, and put it into 1 gallon of oil of turpentine; boil the mixture over a stove till the resin is perfectly dissolved, and when cool, it will be fit for use.
113. IRON WORK BLACK OR BLACK VARNISH FOR IRON
Put 48 lbs. asphaltum into an iron pot, and boil for four hours; during the first two hours, introduce 7 lbs. litharge, 3 lbs. dried copperas, and 10 gallons boiled oil; add 1/8 lb. run of dark gum, with 2 gallons hot oil; after pouring the oil and gum, continue the boiling two hours, or until it will roll into hard pills like Japan; when cool, thin it off with three gallons of turpentine, or until it is of proper consistence. This varnish is intended principally for the iron work of coaches and other carriages.
114. VARNISH FOR HARNESS
Take 1/2 lb. of india rubber, 1 gallon of spirits of turpentine; dissolve enough to make it into a jelly by keeping it almost new milk warm; then take equal quantities of good linseed oil, (in a hot state,) and the above mixture, incorporate them well on a slow fire, and it is fit for use.
115. QUICK DRYING HARNESS BLACKING VARNISH
Break 1/2 cake (which is about 1 ounce) of white wax into an earthen pan, and just cover it with oil of turpentine; place a board over the pan to keep out the air; let it stand for 24 hours or until formed into a paste; then in another pan, mix 1 lb. of best ivory black with neatsfoot oil, until it assumes a thick consistency; then mix the contents of both pans together. It may be reduced with spirits of turpentine. Bottle, and it is fit for use.
116. OIL PASTE BLACKING
Take oil vitriol, 2 ozs., tanners oil, 5 ozs., ivory black, 2 lbs., molasses, 5 ozs; mix the oil and vitriol together, let it stand a day, then add the ivory black, the molasses, and the white of an egg; mix well, and it is ready for use.