Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. 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		Scientific Name Eschweilera sp. Trade Name Manbarklak Family Name Lecythidaceae 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 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 Yellow Reddish brown Light brown Grey brown Brownish buff Black streaks Sapwood Color White to yellow Clearly differentiated from the heartwood Grain Even Straight Generally straight, but not always Texture Fine Even or uniform Uniform Fine Luster Dull Natural Durability Moderately durable Resistant to termites Resistant to marine borer attack Moderately resistant to attack by termites Heartwood resistant to attack by white rot and brown rot fungi Weathering Good Odor No specific smell or taste Drying Defects Checking Distortion Warping can be expected Checking Ease of Drying Slowly Thick Stock Requires Care Difficult Slow to moderate rates Tree Size Trunk diameter is 100-150 cm Trunk diameter is 150-200 cm Trunk diameter is 200-250 cm Trunk diameter is 250-300 cm 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 Boring Fairly easy to very easy Fair to good results Carving Very Good to Excellent Results Cutting Resistance Easy to saw Difficult to saw Difficult due to high silica content Mortising Fair to Good Results Moulding Fairly Easy to Very Easy Planing Very Good to Excellent Results Difficult to plane Resistance to Impregnation Resistant heartwood Resistant sapwood Very difficult to treat Response to Hand Tools Responds Readily Easy to Work Poor response to hand tools Difficult due to high silica content Routing & Recessing Fair to Good Results Fairly Easy to Very Easy Sanding Fair to Good Results Very Good to Excellent Results Fairly Easy to Very Easy Turning Fairly Easy to Very Easy Fair to Good Results Polishing Fair to Good Results Numerical Data Item Green Dry English 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 % Item Green Dry Metric 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.