Scorodocarpus borneensis (Olacaceae)
Kulim is the product of a single species, Scodorocarpus borneensis. The timber seasons fairly rapidly, with moderate end-checks, splitting and slight surface checking as the main sources of degrade.
- Density: 640-975 kg/m3
- Heartwood: dark purple-brown to dark red-brown
- Sapwood: light yellow in colour
- texture is moderately fine and even with shallowly to deeply interlocked grains
- slightly difficult to difficult to re-saw
- easy to slightly difficult to cross-cut
- air dried material is slightly difficult to plane but the quality of finish is smooth
- nailing property is rated as very poor
- the logs are generally free from defects except for the core which is often defective
The timber is suitable for medium construction under cover, posts, beams, joists, rafters, door and window frames and sills, bridges and tool handles (impact). The timber possesses a certain degree of resistance to marine borers and may be used in the marine environment. The timber is also suitable for ship and boat building (keels, keel sons and framework), flooring, railway sleepers, cooling towers (structural members), columns (light duty) and telegraphic and power transmission posts and cross arms when treated with preservatives.