Jatoba

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Name jatoba
Other Names Copalier (Antiles), jatoba, jatahy, jutai-acu, jatai (Brazil), courbaril (French Guyana), locust, kawanari (Guyana), algarrobo, guapinol (Central America), rode locus, locus (Suriname).
Botanical Name Hymenaea courbaril L., Hymenaea stilbocarpa Hayne and Hymenaea spec. div..
Family Leguminosae (Caesalpiniaceae).
Origin Tropical South and Central America
Tree Description Grows to an average height of 30 m (max. 40 m). Branch-free trunks are swollen at the root base, straight, measure 18 to 24 m and have diameters ranging from 0.6 to 0.9 m (min./max. 0.5/1.5 m).
Available As Planed timber and semi-finished products.
Wood Description Freshly sawn heartwood is meat coloured, turned pinkish red to reddish brown and often has dark (black) stripes. Jatoba can be worked to produce a smooth surface finish and has a beautiful sheen. The wide sapwood is grey to brownish grey in colour. Tangential series of resin ducts may be present.
Wood Type Hardwood
Grain Straight, sometimes irregular and slightly interlocked grain.
Texture Fine to mildly coarse.
Density 750/900/1050 kg/m3 at 12% humidity, 1150 kg/m3 when green.
Working Moderate.
Drying Slow with little distortion or surface cracking. Jatoba that is more darkly striped distorts more than evenly coloured wood.
Workability Works easily to produce a smooth surface finish.
Fixings and Fasteners Pre-drilling required.
Bonding Good. Poor for wall woodwork.
Pliability Very good.
Surface Finishing Good with solvent-based systems, a sealant is required for water-based systems to prevent seepage of water-soluble substances.
Durability Moulds 1. Fairly resistant to termites.
Strength Class -
Impregnability Heartwood - very difficult.
Peculiarities -
Applications Interior and exterior work such as frames, windows, facades, stairs, doors, casing, parquet and wide floorboards, construction timber and furniture. Shipbuilding: keels, hulls, edging, interior and exterior woodwork (too smooth and too dark for decking), waterworks, freshwater lock gates, bridge decks, frames and knobs, carving, sculpting, turning, tool handles, etc.
Quality Requirements -

Source: Houtvademecum, 8e druk 2001

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