Bosse

Scientific name: Guarea cedrata Pellegr.; G. laurentii De Wild.

Other names: English: Bosse

Geographic origin: Africa.

Description

&;8226; Sapwood: light brown.
&;8226; Heartwood: pink brown.
&;8226; Fiber: straight, occasionally slightly intertwined.
&;8226; Grain: thin to medium size.

Bosse

Applications

&;8226; Interior and exterior furniture and cabinet work. Turned pieces.
&;8226; Interior carpentry, doors, paneling, molding, baseboads, friezes.
&;8226; Exterior carpentry, doors and windows.
&;8226; Decorative panels and plywood board .

Capacity of being impregnated

&;8226; Sapwood: capable of being impregnated.
&;8226; Heartwood: no capable of being impregnated.

Mechanization

&;8226; Sawing process: easy, except in the presence of silica, a situation that causes fast wear of saws and irritating dust.
&;8226; Drying process: medium speed. Medium risk of deformation and crack formation.
&;8226; Planing process: no difficulties excepting those named cases of silica and the risk of repelling on pieces of intertwined wood.
&;8226; Gluing process: no difficulties.
&;8226; Nailing and screwing process: no difficulties.
&;8226; Finish: no difficulties, except in case of resin exudations , they can be usual .

Physical properties

&;8226; Apparent density at 12% humidity 600 kg/m3 fom semi-light wood to semi-heavy wood.
&;8226; Dimensional stability
- Volumetric contraction coefficient 0.43 % variation from stable wood to slightly nervous wood.
- Relation between contractions 1.61 no tendency to deformity.
&;8226; Hardness (Chaláis-Meudon) 3.6 semi-hardwood.

Bosse

Mechanical properties

&;8226; Resistance to static flexion 1.100 kg/cm2.
&;8226; Elasticity module 109.000 kg/cm2.
&;8226; Resistance to compression 510 kg/cm2.

Bosse

Observations

Light Sapwood colour and dark heartwood.
It is sometimes wrongly called Cedar.
There are important colour differences deppending on its origin.