Impregnation and lubrication: fabric

Impregnation and lubrication: fabric

Before traveling backpack, tent, storm suit, cape (unless they are made of other materials waterproof) need to infiltrate the special solutions. Waterproof fabric can be made by one of the following methods - for ST. Obruchev: put the cloth in warm soapy solution (500 g of soap in 4 liters of water) and then lowered to squeeze it into a saturated solution of alum; even better if in a soap solution, add 25 g of linen soda and 450 g of the rosin powder.

Put cloth 40 percent solution in laundry soaps and when it is soaked, and pull it in the lower 20 percent solution of copper sulfate. Then dried (cloth painted in green color).

Stir the solution lead carbonate (30 g na.1 liters of water) and the aluminum sulphate solution (21 g at 0, 35 l of water), shake well and filter through muslin. Then put the cloth in this mixture on the quarter hour and dry without wringing.

Dip the cloth in a solution of 100 parts water, 4 parts of alum, 2 parts of fish glue and 1 part of the laundry soap. Then squeeze the fabric and rinse it in a 4 percent lead acetate solution. Lower the fabric in a solution of 10 parts of adhesive, one part of acetic acid, 90 parts of water, 1 part of potassium dichromate, and then dried.

Put fabric into the mixture formed of 500 g of milk casein, 12 g of slaked lime in powder, 0, 5 liters of hot water and soap solution (25 g per 3 liter of water). Thoroughly soak it to dry and put in a 2 percent solution of acetic acid alumina (alumina 12 parts per 100 parts water). Pull and quickly dropping in hot (but not boiling) water and dried.

If the travel route passes through places where a lot of blood-sucking insects (gnats), tent and storm suits are impregnated with repellent - for example, 15 percent emulsion of methyl phthalate.