Kempas (koompassiya, tualang, «a tree of a beer plenty») - very high trees from family bean (Leguminosae), reach heights of 70 metres with free from branches a trunk in height of 30 metres to the first branch. Diameter of a trunk - 90 centimetres and more. Grow in South East Asia (Indonesia, Malaysia, Thailand, etc.).
Colour of mature wood bright, at once evident: from zolotisto-reddish to dark orange. A structure on raspile rather equal, with more light longitudinal proveins.
Wood kempasa differs high hardness and in density, in favorable conditions (without access of a moisture and in the presence of air exchange) rather long time can be maintained. To moisture influence it is unstable. As a whole on a thickness of a trunk the structure of fibres of wood is very non-uniform, therefore at processing the tree vorsitsya, but well enough gives in to polishing and drilling. It is often applied in incrustations and in mosaic parquet floors. Before lakirovkoi it is required shpatlevka. Application of varnishes, glues and first coats on a water basis is not recommended. For prevention of formation of cracks by an obligatory condition drilling of apertures under nails and screws is. As wood kempasa has strongly pronounced acid properties, it can render corrosive attack to metals.