Koto

PHYSICAL AND MECHANICAL PROPERTIES

These properties can vary significantly depending on the origin and growing conditions of the wood.

• Density *: 0.59
• Monnin hardness *: 2.5
• Coef. Volume shrinkage: 0.57%
• Stability in service: not very stable
• Total radial shrinkage: 4.5%
• Fiber saturation point: 25%
• Total tangential shrinkage: 9.6%

(*: 12% humidity)

NATURAL DURABILITY AND IMPREGNABILITY OF WOOD

• Mushrooms: cl 5 – not sustainable
• Insects of dry wood: susceptible; sapwood little or not distinct (risk in all the wood)
• Termites: class S – susceptible
• Impregnability: class 1 – impregnable
• Biological risk class: 1 – indoors (no risk of humidification)

This species is sensitive to bluing.

SAWING AND MACHINING

• Blunting effect: normal
• Teeth for sawing: ordinary or alloy steel
• Machining tools: ordinary

Tendency to lint during machining. Good finish after filling.

ASSEMBLY

• Nailing – Screwing: good hold
• Gluing: correct

USES

• sliced ​​veneer
• interior carpentry
• paneling
• current furniture or elements
• slatted panel
• frame
• light frame
• seats
• staircase
• plywood face or back
• molding
• fiber or particle board
• glulam
• tabletterie
• crate-packing

Koto veneers are often stained by steaming.
Main known uses to be validated by implementation in accordance with the rules of the art. Important note: some uses are mentioned for information.

Source: CIRAD – ATIBT

REACTION TO FIRE

• French conventional classification: thickness> 14 mm: M.3 (moderately flammable) thickness <14 mm: M.4 (easily flammable)
• classification according to euroclasses: D s2 d0 This default classification concerns solid woods meeting the requirements of standard NF EN 14081-1 appendix C (May 2006), used in vertical walls. Namely structural wood, classified, with a minimum average density of 0.35 and a minimum thickness of 22 mm.