Mongoy
Scientific name:
Guibourtia ehie J. Leonard
Geographic origin:
West Africa and Central Africa
- Sapwood: Yellowish white colour that darkens with the light effects and changes into grey.
- Heartwood: greyish brown with frequent dark grey shades.
- Fiber: Straight. Slightly intertwined fibers are very frequent.
- Grain: Thin.
- Defects: white deposit bags
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Capacity of being impregnated
- Sapwood: Capable of being impregnated
- Heartwood: Low capacity of being impregnated
Mechanical properties
- Resistance to static flexion 1,550 kg/cm2 &;8226; Elasticity module 157,000 kg/cm2
- Resistance to compression 690 kg/cm2
Mechanization
- Sawing process: ordinary difficulties arise from hardness.
- Drying process: Medium speed to low speed. Little risk of deformation and crack formation.
- Planing process: Appart from hadness difficulties, risk of repelling is very frequent due to the intertwined fibers.
- Gluing process: No difficulties.
- Nailing and screwing process: Pre-drilling is required
- Finish: No difficulties
Physical properties
- Apparent density at 12% humidity 800 kg/m3 heavy wood
- Dimensional stability
- - Volumetric contraction coefficient 0.49 % nervous wood.
- - Relation between contractions
- tendency to deformity
- Hardness (Chaláis-Meudon) 7.6 hardwood
Observations
- Habitualment són troncs de petit diàmetre, pel que és difícil aconseguir bons amples
- Depenent de la procedència del seu vetejat negre, pot estar de molt marcat a molt lleuger
