Species: Tatajuba


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Tatajuba
Species profile
When freshly cut, the heartwood is yellow. It becomes yellow brown to dark brown with age. The sapwood is clearly demarcated. The grain is interlocked and the texture is medium. Density at 12 % moisture content: 0.80 g/cm3.

The blunting effect is normal and slicing is reported to be good. Sawdust is sometimes irritant. Presence of internal stresses. Nailing is good but pre-boring is necessary. Gluing is correct. It dries normal to slowly. High risks of distortion in presence of highly interlocked grain. During drying, spacer sticks may stain the wood.

Tatajuba is very durable to fungi and is durable to dry wood borers; sapwood demarcated (risk limited to sapwood). Due to its high silica content, this species naturally covers the biological hazard class 5 (end-uses in marine environment or in brackish water).

Tatajuba can be used for several applications such as:
• interior: e.g. flooring, sliced veneer, high class furniture, stairs, panelling, joinery, moulding
• exterior: e.g. ship building, wood frame house, panelling, bridges, sleepers, joinery, heavy carpentry, vehicle or container flooring

References
• CIRAD Forestry Department

Family:MORACEAE (angiosperm)
Origin:South and Central America
Local and common name(s)
Amarelao, Tatajuba, Bagasse, Odoun, Jawahedan, Bagaceira, Cow-Wood, Kaw Oudou, Kaw-Oedoe,
Scientific name(s)
Bagassa guianensis, Bagassa tiliaefolia (synonymous),
Typical use
Interior joinery, Sliced veneer, Hydraulic works (fresh water), Exterior panelling, Bridges (Parts not in contact with water or ground), Turned goods, Vehicle or container flooring, Current furniture or furniture components, Ship building (ribs), Wood frame house, Interior panelling, Sleepers, Exterior joinery, Bridges (Parts in contact with water or ground), Heavy carpentry, Stairs (inside), Moulding, Flooring, Ship building (planking and deck), Cabinetwork (high class furniture),
Risk
Commercial restriction:No commercial restriction
IUCN Red List status:
Appearance
Grain:Interlocked
Interlocked Grain:Marked
Sapwood:Clearly demarcated
Texture:Medium
Typical colour:Yellow Brown
Physical description
Crushing strength:78 (+/- 9) MPa
Specific Gravity (at 12% MC):0,80 (+/- 0,07)
Stability:Stable
Static bending strength:109 (+/- 21) MPa
Durability
Dry wood borers:Class D - Durable
Fungi:Class 1 - Very durable
Termites:Class D - Durable
Treatability:Class 3 - Poorly permeable
References
Technical descriptions from the software Tropix 7 [1], with permission of the Research Unit Biomass, Wood, Energy, Bioproducts [2], CIRAD [3].

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Tatajuba