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Blunting Effect
Boring
Carving
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Grain
Heartwood Color
Luster
Mortising
Moulding
Natural Durability
Numerical Data
Odor
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Routing & Recessing
Sanding
Sapwood Color
Scientific Name
Substitutes
Texture
Trade Name
Tree Size
Turning
Weathering
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Common Names
Atereba, Coco cristal, Coco de mono, Haudan, Jarana, Kakeralli, Manbarklak, Mata mata, Montanero, Oemanbarklak, Olleto, Oxito, Tete congo
Regions of Distribution
Central America, Latin America
Countries of Distribution
[VIEW MAP]
Brazil, Costa Rica, Guyana, Trinidad and Tobago
Common Uses
Barge fenders, Building construction, Building materials, Cabin construction, Construction, Crossties, Docks, Dockwork, Factory construction, Factory flooring, Flooring, Harbor work, Heavy construction, Marine construction, Mine timbers, Naval architecture, Pile-driver cushions, Piling, Pulpmill equipment, Raft floats, Rafts, Railroad ties, Sub-flooring, Turnery, Wharf construction
Environmental Profile
| Status has not been officially assessed |
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Distribution Overview
About 60 species are distributed from eastern Brazil through the Amazon Basin to the Guianas, Trinidad, and Costa Rica (including Panama, Venezuela, Colombia and Surinam).
Heartwood Color
| Brown |
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| Yellow |
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| Reddish brown |
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| Light brown |
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| Grey brown |
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| Brownish buff |
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| Black streaks |
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Sapwood Color
| White to yellow |
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| Clearly differentiated from the heartwood |
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Grain
| Generally straight, but not always |
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Texture
| Fine |
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| Even or uniform |
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| Uniform |
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| Fine |
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Luster
Natural Durability
| Moderately durable |
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| Resistant to termites |
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| Resistant to marine borer attack |
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| Moderately resistant to attack by termites |
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| Heartwood resistant to attack by white rot and brown rot fungi |
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Weathering
Odor
| No specific smell or taste |
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Drying Defects
| Checking |
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| Distortion |
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| Warping can be expected |
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| Checking |
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Ease of Drying
| Slowly |
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| Thick Stock Requires Care |
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| Difficult |
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Slow to moderate rates
Tree Size
| Trunk diameter is 100-150 cm |
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| Trunk diameter is 150-200 cm |
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| Trunk diameter is 200-250 cm |
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| Trunk diameter is 250-300 cm |
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Substitutes
Although Brown mallet is less resilient than Hickory (Carya), it is regarded as an excellent substitute
Blunting Effect
| High effect due to high silica content |
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Boring
| Fairly easy to very easy |
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| Fair to good results |
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Carving
| Very Good to Excellent Results |
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Cutting Resistance
| Easy to saw |
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| Difficult to saw |
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| Difficult due to high silica content |
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Mortising
Moulding
Planing
| Very Good to Excellent Results |
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| Difficult to plane |
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Resistance to Impregnation
| Resistant heartwood |
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| Resistant sapwood |
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| Very difficult to treat |
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Response to Hand Tools
| Responds Readily |
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| Easy to Work |
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| Poor response to hand tools |
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| Difficult due to high silica content |
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Routing & Recessing
| Fair to Good Results |
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| Fairly Easy to Very Easy |
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Sanding
| Fair to Good Results |
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| Very Good to Excellent Results |
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| Fairly Easy to Very Easy |
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Turning
| Fairly Easy to Very Easy |
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| Fair to Good Results |
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Polishing
Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 13710 | 20056 | psi |
| Density | | 63 | lbs/ft3 |
| Hardness | | 2430 | lbs |
| Maximum Crushing Strength | 5498 | 8614 | psi |
| Stiffness | 2048 | 2401 | 1000 psi |
| Toughness | | 296 | inch-lbs |
| Specific Gravity | 0.77 | | |
| Weight | 59 | 48. | lbs/ft3 |
| Radial Shrinkage | 6 | | % |
| Tangential Shrinkage | 10 | | % |
| Volumetric Shrinkage | 16 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 963 | 1410 | kg/cm2 |
| Density | | 1009 | kg/m3 |
| Hardness | | 1102 | kg |
| Maximum Crushing Strength | 386 | 605 | kg/cm2 |
| Stiffness | 143 | 168 | 1000 kg/cm2 |
| Toughness | | 340 | cm-kg |
| Specific Gravity | 0.77 | | |
| Weight | 945 | 769. | kg/m3 |
| Radial Shrinkage | 6 | | % |
| Tangential Shrinkage | 10 | | % |
References
Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.
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