Okan Wood
Other names
Adoum, Bokoka, African
greenheart
Scientific Name
Cylicodiscus gabunensis
Family
Mimosaceae
Description
Buy Okan Wood
Okan heartwood is yellowish-brown, often with a slight green tinge, on exposure darkening to reddish-brown with a yellowish or greenish tinge; it is distinctly demarcated from the 5–8 cm thick, pale pink sapwood. The grain is interlocked, texture moderately coarse. The heartwood is very durable. It shows excellent natural resistance to wood decay fungi and is also resistant to dry-wood borer, marine borer, and termite attacks. The wood is often slightly striped and lustrous and has an unpleasant smell when freshly cut.
Density
(H=12%) : 0,91
Treatability
Not permeable
Seasoning
The wood should be air-dried rather slowly or be carefully kiln-dried, to avoid deformation.
Stability
Moderately stable in service
Durability
The heartwood is very durable. It has proven excellent natural resistance to fungi responsible for rotting wood, dry wood borers, marine borers, and termites.
Workability
Okan is difficult to saw and work, with some dulling effect on cutting edges, and force is required. Stellite-tipped saws are recommended. It is difficult to obtain a smooth finish because of the interlocked grain. Planing shows the best results at a cutting angle of 15°. The wood holds screws and nails well, but pre-boring is needed. The gluing, staining, polishing, and painting properties are satisfactory, but for optimal polishing effect, the use of a filler is required. Turning gives good results.
End-Uses
- Hydraulic works (seawater)
- Poles
- Sleepers
- Industrial or heavy flooring
- Heavy carpentry
- Vehicle or container flooring
- Sculpture
- Turned goods
- Bridges (parts not in contact with water or ground)
- Bridges (parts not in contact with water or ground)
- Flooring
Notes: Substitute for AZOBE
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