Water varnishes. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Water varnishes. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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Preparation water varnishes based on the dissolution of certain resins in aqueous solutions of alkalis, sodium and potassium carbonate salts, ammonia, borax, etc. Shellac is mainly used; rarely use copal. When dried, these solutions give a varnish film with a beautiful sheen, very flexible and not affected by water.

These varnishes are used for varnishing furniture, leather, wallpaper and other items. Water-based varnishes are often used in mixtures with glue, casein, dextrin and other substances. Water-based varnishes are most widely used as dressings for leather. In order to reduce the cost, shellac is sometimes replaced with harpius, but this makes the varnish brittle and less resistant to moisture and water. Preparation of water varnishes is as follows.

In a tinned or enameled pan, water is heated to a boil and alkali or alkaline salts (ammonia, borax, soda, etc.) are added. After dissolving the alkali, shellac is added in small portions. Subsequent portions of shellac are added only when the previous portion has dissolved. Next, the solution is cooled and left alone for a while. Shellac wax floats on top of the solution and must be removed by filtration.

During the preparation of the varnish, you need to add water to replace the boiling water. An excess of alkalis should not be taken, as it adversely affects the quality of the varnish.

Wallpaper varnish

Shellac 60 g;
Borax 20 g;
Water 400 cm3,

Wallpaper coated with this varnish can be washed with soap and water. The varnish is applied with a brush once or twice.

Leather varnish

Shellac 50 g;
Borax 10 g;
Glycerin 7 g;
Ammonia 0,7 g;
Nigrosine 8 g;
Water 30 g.

Varnish for wood

Shellac 40 g;
Crystal soda 20 g;
Water 200 g.

Author: Korolev V.A.

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