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AFRICAN BUBINGA

V. Ryan 2008

 

A really attractive timber which is often used as a Rosewood substitute.

Guibourtia demeusei
Family: Leguminosae

Commercial Names: African rosewood, kevasingo (rotary) (UK)

Distribution: Chiefly from the Cameroon and Gabon, also Zaire.

 
 
 

General Description: The wood is medium red-brown with lighter red to purple veining. The grain is straight or interlocked. In some logs the grain is very irregular and these are converted by peeling into rotary cut veneers called kevasingo. The texture is moderately coarse but even. The weight ranges from 800-960kg/ft3 (50-60lbs/ft3). Average 880kg/m3 (55lb/ft3): specific gravity .88.

Mechanical Properties: The timber has low steam bending qualities and exudation of gum pockets is troublesome.

Working Properties: The timber works easily with both hand and machine tools although gum pockets may cause difficulty. Interlocked and irregular grained material tends to tear or pick up and a reduced cutting angle of 15 is necessary for planing or moulding. There is a moderate to severe blunting effect on cutting edges which must be kept sharp. Nailing requires pre-boring, gluing may be difficult due to gum pockets but the wood stains easily and can be brought to an excellent finish.

Durability: It is moderately durable but liable to common furniture beetle attack. The sapwood is permeable and the heartwood is resistant to preservative treatment.

Uses: Suitable for superior furniture making and high class joinery, cabinet making and flooring. It is an excellent turnery wood and used for knife handles, brush backs and fancy goods. The chief use is for sliced decorative veneers for cabinets and panelling particularly the rotary cut kevasingo with a wild swirling veined figure.

 
 
 
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