Kokoona spp. (Family: Celastraceae)
Mata Ulat is the product of mainly Kokoona littoralis, K.ochracea, K.ovatalanceolata and K.reflexa. While K.littoralis is fairly slow drying with slight splitting, moderate end-checking , surface checking and insect attacks, K.reflexa dries fairly rapidly, with sligh end-checks, splitting and surface checking.
- Density: 895-1,055 kg/m3
- Heartwood: dark purple-brown to dark red-brown
- Sapwood: light yellow in colour
- difficult to treat with preservatives
- texture is fine but uneven due to the thick bands of parenchyma
- grain is interlocked
- easy to re-saw and cross-cut
- during storage, degrade in the form of end-splitting and checking may appear. The sapwood is liable to be attacked by powder-post beetles.
The timber is suitable for heavy construction if treated, e.g. posts, beams, joists, rafters, bridges and railway sleepers. The timber is also suitable for heavy duty and decorative furniture, fender supports, telegraphic and power transmission posts and cross arms, flooring (heavy traffic), door and window frames and sills, staircase (angle block, rough bracket, handrail and sprandrel framing), joinery, cabinet making, tool handles (impact) and vehicle bodies (framework and floor boards).