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The bleaches used to remove unwanted fungal stains from wood include two-part peroxide bleach and solutions of sodium hypochlorite. [27] The former is particularly effective at removing the natural colour of wood before it is recoloured with pigmented stains or dyes. [27] Oxalic acid is particularly effective at removing iron stains from wood. [27]
The PTI preservative imparts very little color to the wood. Producers generally add a color agent or a trace amount of copper solution so as to identify the wood as pressure treated and to better match the color of other pressure treated wood products. The PTI wood products are very well adapted for paint and stain applications with no bleed ...
The pre-eminent rosewood appreciated in the Western world is the wood of Dalbergia nigra. [2] It is best known as "Brazilian rosewood", [3] but also as "Bahia rosewood". This wood has a strong, sweet smell, which persists for many years, explaining the name rosewood. [4]
Different wood species stain differently—the overall colour and shade is a result of a combination of the stain and properties of the wood. For example, although medium-to-dark stains tend to look blotchy on maple, they get deeper and more glowing on cherry, with a more consistent colouration. [ 3 ]
It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects. Like other copper-based wood preservatives, it imparts a greenish tint to treated timber. CCA was invented in 1933 by Indian chemist Sonti Kamesam, and patented in Britain in 1934.
The wood of this species has been much sought after since it was first introduced to the European and subsequently the world market, hundreds of years ago. Dalbergia nigra became popular in high grade furniture, such as that produced during the Regency period of late 18th and early 19th centuries—and more recently by Scandinavian makers, who ...