Timber
Species
Tatabu
Scientific Name:
Diplotropis purpurea
Family: Papilionacease
ATIBT Standard Name: Coeur Dehors
Other Name: Sucupira, Alcoruoque,
Zwarte Kabbes
Wood Appearance: Heartwood dark
chocolate brown in colour with conspicuous paler markings, giving
a decorative appearance which may be enhanced on quartered surface
by a stripe figure.
- Sapwood - whitish, sharply demarcated from heartwood.
- Texture - moderately coarse.
- Grain - interlocked, sometimes irregular.
- Bole - 60-70 feet long, cylinderical; diameter 20-24 inches.
Physical and Mechanical Properties:
A heavy, strong, durable wood possessing high strength properties.
Medium shrinkage, relatively stable once dry.
- Weight - 935 kg/m3 (58 lb/ft3 ) seasoned.
- Bending Strength -
- Modulus of elasticity -
- Compression parallel to grain -
- Shock resistance -
Natural Durability: Very resistant
to decay even under exacting conditions of use. Highly resistant
to fungus and termite attack.
Timber Processing
- Drying - Dries readily but slowly, without distortion of splitting.
- Working - Difficult to work on account of its high density
and interlocked and irregular grain, but can be finished to
a smooth surface. Turns well.
- Assembly - Glues well. Nails and screws hold well.
- Finishing - Polishes satisfactorily after filling.
Uses: Has a decorative appearance
and is of interest for turned work and as a veneer for inlays
in high grade furniture. Suitable for exterior and interior joinery,
turnery, panelling and tool handles. A very useful timber
with many applications.
Supplies: Occurs widely but
not abundantly in the-Guyana forests. Regular supplies in modest
quantities are available. |