Gasket Shellac Compound

Listing ID #1666657

Item code :-G-5222 Gasket Shellac Gasket Shellac Compoundis a dark brown, viscous liquid with a characteristic alcoholic odor. The offered Gasket Shellac Compound is a hard setting, slow drying liquid that is designed to coat, seal and repair most gaskets including, felt, paper, rubber and composition type gaskets. Gasket Shellac Compound seals metal gaskets and threaded connections for light duty service. Liquid shellac has a limited shelf life (about 1 year), hence it is sold in dry form for dissolution prior to use. Liquid shellac sold in hardware stores is clearly marked with the production (mixing) date, so the consumer can know whether the shellac inside is still good. Alternatively, old shellac may be tested to see if it is still usable: a few drops on glass should quickly dry to a hard surface. Shellac that remains tacky for a long time is no longer usable. Storage life depends on peak temperature, so refrigeration extends shelf life.
The thickness (concentration) of shellac is measured by the unit "pound cut", referring to the amount (in pounds) of shellac flakes dissolved in a gallon of denatured alcohol. For example: a 1-lb. cut of shellac is the strength obtained by dissolving one pound of shellac flakes in a gallon of alcohol. Most pre-mixed commercial preparations come at a 3-lb. cut. Multiple thin layers of shellac produce a significantly better end result than a few thick layers. Thick layers of shellac do not adhere to the substrate or to each other well, and thus can peel off with relative ease; in addition, thick shellac will obscure fine details in carved designs in wood and other substrates.Shellac naturally contains a small amount of wax (3%-5% by volume), which comes from the lac bug. In some preparations, this wax is removed (the resulting product being called "dewaxed shellac").Specifications
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Chemical Type :Resin
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Appearance :Dark brown, viscous liquid
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Odor :Alcoholic
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Specific Gravity :1.1
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Viscosity :Flow similar to SAE 60 Motor Oil