Artificial gutta-percha. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Artificial gutta-percha. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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Here are some recipes artificial gutta-percha.

1st recipe

The raw rubber mass is taken in a mixture with carnauba wax and, if necessary, with oils having a high boiling point, subjected to first weak, and then constantly increasing heating, which, however, does not reach the melting point of the wax. Moreover, the mixture is carefully kneaded, turning into a completely homogeneous, having all the properties of gutta-percha, not requiring vulcanization at all, and nevertheless a solid and elastic product.

This treatment does not require the use of solvents for either rubber or wax. Oils used in other cases are added to the mass before stirring.

2st recipe

Take 48 kg of copal, crushed into powder, 5-14 kg of sulfur color and 50-55 buckets of kerosene, heat until completely dissolved at a temperature of 122-150 °C, stirring continuously, and cool to 38 °C. Then 3 kg of casein (or cottage cheese) is dissolved in a weak aqueous solution of ammonia (with the addition of a small amount of wood alcohol), poured into the mass prepared as indicated above and heated again at a temperature of 122-150 ° C until a mass of liquid consistency is obtained.

Then a 15-25% solution of tannic acid, ink-nut or catechu, 100 g of ammonia is added to the mass and boiled for a sufficiently long time, after which the mass is cooled, washed, kneaded in hot water, rolled and dried.

Author: Korolev V.A.

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