Bubinga
Scientific name:
Guibourtia spp
Geographic origin:
Africa.
- Sapwood: reddish white.
- Heartwood: reddish grey to red.
- Fiber: straight, slightly intertwined.
- Grain: thin.
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Capacity of being impregnated
- Sapwood: capable of being impregnated.
- Heartwood: no capable of being impregnated.
Mechanical properties
- Resistance to static flexion 1,560 kg/cm2.
- Elasticity module 171,000 kg/cm2.
- Resistance to compression 720 kg/cm2.
Mechanization
- Sawing process: high power is required but with no other difficulties.
- Drying process: slow, high risk of crack formation.
- Planing process: difficult due to hardness, although risk of repelling only appears on pieces of intertwined fibers.
- Gluing process: no difficulties.
- Nailing and screwing process: pre-drilling is required due to its hardness.
- Finish: no difficulties.
Physical properties
- Apparent density at 12% humidity 910 kg/m3 very heavy wood.
- Dimensional stability
- - Volumetric contraction coefficient 0.47 % nervous wood.
- - Relation between contractions 1.62% no tendency to deformity.
- Hardness (Chaláis-Meudon) 8.4 very hard wood.
Observations
