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The conservation and restoration of lacquerware prevents and mitigates deterioration or damage to objects made with lacquer. 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.
Lacquer is applied to a surface that has been cleaned with ethanol, acetone, or methyl ethyl ketone. Oils from human hands prevent the lacquer from adhering to the silver. Agateen No. 27 (cellulose nitrate) and Paraloid B-72 are the most commonly used lacquers however there is a debate which lacquer, cellulose nitrate or acrylic, is best. [10]
Lacquer mixed with water and turpentine, ready for applying to surface. Types of lacquer vary from place to place but they can be divided into unprocessed and processed categories. The basic unprocessed lacquer is called raw lacquer (生漆: ki-urushi in Japanese, shengqi in Chinese). This is directly from the tree itself with some impurities ...
Conformal coatings are used to protect electronic components from possible environmental exposure; they allow moisture to escape but protect against contamination. More recently, conformal coatings are being used to reduce the formation of whiskers [ 2 ] and to prevent current bleed between closely positioned components.
East Asian countries have long traditions of lacquer work, going back several thousand years in the cases of China, Japan and Korea. The best known lacquer, an urushiol-based lacquer common in East Asia, is obtained from the dried sap of Toxicodendron vernicifluum. Other types of lacquers are processed from a variety of plants and insects.
Excellent general furniture finish, harder than standard lacquer. Conversion varnish or Acid-Cat Lacquer: Transparent, all sheens from 5% to Gloss Excellent protection against many substances Meets UK and European standards for "severe use". Uses toxic solvents, including toluene. Moderate. Requires spray equipment. Used in professional shops only.
However, New Pig does not recommend this for continuous water sources, so it won’t hold up against intense flooding. These are best at containing indoor floods that may be related to plumbing ...
Typical descriptions are "showerproof", "water resistant", and "waterproof". [1] These terms are not precisely defined. A showerproof garment will usually be treated with a water-resisting coating, but is not rated to resist a specific hydrostatic head. This is suitable for protection against light rain, but after a short time water will penetrate.
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