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Cumaru

Name

• Scientific name: Dioterix spp
• Spanish name: Cumaríº

Origin

Description of the wood

• Sapwood: Yellowish-white.

• Heartwood: Yellowish-brown to reddish-brown.

• Grain: Straight, often quite interlocked.

• Texture: Medium.

Impregnation

• Sapwood: Moderately impregnable
• Heartwood: Poorly impregnable

Mechanization

• Sawing: Difficult due to its hardness and silica content, requiring sharp saw blades and high power.

• Drying: Very slow. Slight risk of cracking. High risk of splitting and lesser risk of warping.

• Planing: Difficult due to its hardness, exhibiting widespread grain due to its interlocked fibers. Machining should be carried out very slowly.

• Gluing: Problems are reported due to its tannin content.

• Nailing and screwing: Inherently difficult due to its hardness. Pre-drilling is necessary.

• Finishing: The grain necessitates careful sanding.

Applications

• Interior carpentry: doors, stairs, paneling, moldings, baseboards, wainscoting, and especially parquet flooring.

• Exterior carpentry: doors and windows.

• Structural carpentry: interior and exterior.

• Decorative veneers.

• Cooperage.

Mechanical properties

• Static bending strength: 1,780 kg/cm²

• Modulus of elasticity: 220,000 kg/cm²
• Compressive strength parallel to the axis: 680 kg/cm²

To be considered

- It is the South American wood most similar to the African Tali-Elondo. A very suitable species for outdoor decking, a good substitute for Ipe and is frequently confused with it.

Notes






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