Varnishes for tinplate. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Varnishes for tinplate. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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The following varnishes are suitable not only for tinplate, and for all metals in general.

1st recipe:

2 parts pine resin, 4 parts turpentine, 1 part desiccant, 2 parts boiled linseed oil.

2st recipe:

2 parts dammar resin, 4 parts turpentine, 1 part desiccant, 2 parts drying oil. The lacquer can be dyed a beautiful brownish-yellow and golden color with dragon's blood, asphalt, and gummigut.

3st recipe:

2 parts shellac beans, 8 parts Venetian turpentine, 12 parts sandarac, 155 parts alcohol.

4st recipe:

200 parts of sandarak, 34 parts of Venetian turpentine, 100 parts of mastic, 666 parts of alcohol.

5st recipe:

15 parts shellac, 2 parts Venetian turpentine, 8 parts sandarac, 75 parts alcohol.

6st recipe:

15 parts of dammar resin are crushed into powder, melted in a cauldron, 1 part of Venetian turpentine is added, the cauldron is removed from the fire and 20-40 parts of heated turpentine are carefully added.

7st recipe:

9 parts dammar resin, 13 parts linseed oil, 17 parts turpentine. The varnish is stained with dragon's blood, gummigut, etc.

8st recipe:

Greenish-golden varnish. Grind 10 parts of crystalline copper acetate in a porcelain mortar into a fine powder, which is poured in a thin layer on a flat plate, and placed in a warm place for a while, while the water of crystallization and part of the acetic acid evaporate. The powder, which then becomes light brown, is ground in a mortar with turpentine, to which 30 parts of copal varnish heated to 70 ° C are added, with constant stirring. If the copper acetate has been well ground, then when stirred, a significant part of it dissolves within 15 minutes, after which the varnish is poured into a bottle, which is stored for several days in a warm place, shaking from time to time.

The lacquer prepared in this way is evenly applied to the sheet to be coated, which is then dried in a drying oven. According to the degree of heating, this or that color is obtained on the tin; first a greenish color appears, which, with increasing heating, takes on a yellow and dark yellow golden color, then an orange and, finally, a reddish-brown tint. These colors do not change from the action of sunlight, which occurs when using English gold lacquer, and surpass it in brilliance.

The strength of the resulting coating depends on the quality factor of the copal lacquer used: if the latter was of proper quality, then the lacquered tin can be squeezed out and bent without fear of damaging the lacquer. The formation of a golden color occurs because copper oxide turns into oxide, and the more oxygen is taken away from the copper salt by heating, the darker the color turns out.

If a green coating is to be applied with this varnish, then it is applied five times, the next coating being applied when the previous one has completely dried; then it should also be dried with moderate heat.

9st recipe:

Golden varnish. 14 parts of shellac, 8 parts of sabur, 8 parts of sandarak are crushed into powder, gradually added to 70 parts of heated turpentine and the mixture is heated until dissolved.

Author: Korolev V.A.

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Without neural inhibition, the nervous system is threatened with overexcitation, which can manifest itself in improper functioning of the muscles, and in emotional instability, and in general in behavior. And in the cerebral cortex, of course, along with neurons of excitation, there are neurons of inhibition. Only neuroscientists could not understand for a long time where they come from - if all the progenitor cells that came here became excitatory.

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