Preparation of dammar, copal and mastic varnish. simple recipes

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Preparation of dammar, copal and mastic varnish. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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For objects painted with light colors, and for paintings, the so-called dammar (dammar) varnish.

It is prepared as follows: take 4 parts of dammar resin, 5 parts of turpentine and 1/4 part of bleached (without lead) linseed oil. This mixture is boiled until completely dissolved, after which it is filtered through a thin metal sieve, allowed to settle and drained. To prepare copal varnish, mix 1 part of light soft copal with 2 parts of turpentine, and if you want to get an elastic varnish, add another 3% camphor. Then the bottle is filled up to 3/4 with this mixture, corked and placed in the sun or kept warm, shaking from time to time. When the mixture is completely dissolved, it is allowed to settle, drained and filtered through cotton wool.

If the varnish prepared in this way is not completely transparent, then it should be boiled in a bottle for an hour, placing the bottle in a water bath.

Mastic varnish is prepared as follows: for 12 parts of purified, well-washed mastic, 1,5 parts of pure Venetian turpentine, 0,5 parts of camphor powder, 5 parts of well-ground glass and 30 parts of purified turpentine are taken. The mixture is dissolved in a water bath, then allowed to settle and after a day it is drained and filtered through cotton wool.

Author: Korolev V.A.

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