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In its raw form, shellac comes in flakes that you can dissolve in alcohol. | What is shellac?Often confused with tree resin and lacquer, shellac is an excretion gathered from the lac insect that is useful as a sizing or an isolating varnish between paint layers. Because of its origins, it is not vegan, but it is a renewable resource, unlike its synthetic alternatives. It is also a good fixative for charcoal and other drawings, and dries in less than an hour. Apart from its uses in art as a glossy varnish, it is commonly used in food, cosmetics and woodworking. How to use shellac in artThere are two ways you can buy shellac: in raw flakes, or pre-mixed. If you acquire the flakes, you need to dissolve them in denatured alcohol to use them.Try to find an alcohol with a low water content, since moisture causes the shellac to dry with a milky haze. Because of the rapid evaporation of alcohol, you have to work fast to apply shellac – particularly in humid environments, where the moisture can cause the varnish to dry hazy. Shelf life of shellacIf you buy pre-mixed shellac, remember that it has a shelf life. White (clear) shellac only lasts about a year. To test if your shellac is still good, rub a small drop between your fingers. It should feel smooth; if it is grainy, the shellac has been sitting for too long. |
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