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Scientific name: ceiba penttandra Gaertn. Syn.- C. Thonningli A. Chev

Geographic origin: Africa

Description

  • Sapwood: the colour varies from white, light brown, pink brown to grey. Yellow or grey shades usually appear.
  • Heartwood: sometimes it can't be easily distinguished from sapwood.
  • Fiber: intertwined.
  • Grain: rough or thick.

Capacity of being impregnated

  • Capable of being impregnated.

Mechanization

  • Sawing process: difficult. Wide saw is required.
  • Drying process: drying process speed can vary from normal to low speed. Slow drying process is highly recommended.
  • Gluing process: difficult due to its very porous surface.
  • Nailing and screwing process: difficult due to the extraction problems.
  • Finish: no difficulties.

Physical properties

  • Apparent density (12% de humidity): 320 kg/m3.
  • Dimensional stability:
  • - Volumetric contraction coefficient 12%. partially nervous wood.
  • Hardness (Chaláis-Meudon) 0.8 very soft wood.

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Mechanical properties

  • Resistance to static flexion 430 Kg/ cm2.
  • Elasticity module 44,000 kg/cm2.
  • Resistance to parallel compression 250 kg/cm2.

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Observations

To take into account:
In Spain is only used for plywood boards