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The two main types of lacquer are Asian, made with sap from the Urushi tree, and European, made with a variety of shellac and natural resins. Lacquer can be damaged by age, light, water, temperature, or damaged substrate. Conservation treatments include dry cleaning, wet cleaning, consolidation and filling losses.
Raw lacquer has a water content of around 25% and appears in a light brown colour. This comes in a standard grade made from Chinese lacquer, which is generally used for ground layers by mixing with a powder, and a high-quality grade made from Japanese lacquer called kijomi-urushi (生正味漆) which is used for the last finishing layers.
Toxicodendron vernicifluum (formerly Rhus verniciflua [1]), also known by the common name Chinese lacquer tree, [1] [2] [3] is an Asian tree species of genus Toxicodendron native to China and the Indian subcontinent, and cultivated in regions of China, Japan and Korea. [4]
Shellac is much softer than Urushi lacquer, for instance, which is far superior with regard to both chemical and mechanical resistance. [ citation needed ] But damaged shellac can easily be touched up with another coat of shellac (unlike polyurethane, which chemically cures to a solid) because the new coat merges with and bonds to the existing ...
Otherwise, it’s most likely lacquer, oil, polyurethane, or varnish, which can all be treated the same way. The other major difference is in brass : Lacquered brass won’t tarnish, but ...
Shellac does not break down easily with commercially available products. Additionally, the resin has naturally-occurring dyes that can stain ceramic pink or black. The solvent that works best on this resin is Industrial methylated spirit (IMA). [6]: p.31 Shellac is prepared by dissolving flakes of shellac in hot alcohol. The properties of ...
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Are shellac nails that different from a gel manicure? We explain what to know about shellac nails and gel manicures here.