White Mahogany, Your Safest Bet In External Applications
White Mahogany ranges from mid-sized to a large hardwood dotting the coastal plains as well as the nearby ranges of the east coast. It can be found from Sydney to Queensland, with occasional clumps further up north. Its bark is rough but not too coarse, which is why it is called locally as a white stringybark. It is full of fibrous tissues and wears a typical grey-brown shade.
The White Mahogany is also referred to as the Narrow-Leaved White Mahogany or by its scientific name, Eucalyptus acmenoides. Its heartwood has a pale color of yellow brown with close grained feature and considerably heavy. It closely resembles tallowood because it is greasy to the touch, but substantially less oily. Its grain is moderately textured and uniform with some interlocking feature. The sapwood of the White Mahogany is the very slim band wrapping the tree with a paler hue. It is so narrow that it only measures 20 mm in width. Its texture is even and classified as medium.
The White Mahogany is very durable, making it a popular choice for various external applications. When used above ground, it has a life expectancy of over 40 years while in ground, with only 25 years and more. Its sapwood is resistant top lyctid borer infestation as well as termites, making it very ideal for domestic uses.
The white mahogany can be used for heavy engineering, marine structures, shipbuilding, framing, paneling, and cladding. Mixed with other tree species, it is also used as flooring and decking. It is so hard that it does not accept indentation and is difficult to work with if one is using just hand tools.
Its sapwood easily accepts preservative treatment but its heartwood cannot be readily penetrated so modern commercial procedures will be required. The timber product can be seasoned, adequately dried just by using a standard kiln seasoning techniques. However, it works well with regular fittings and fastenings. Like many high density products, machining and surface preparations must be performed at once prior to gluing. The wood easily adheres to paints, polish and stain.
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