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Blunting Effect Boring Common Names Common Uses Countries of Distribution Cutting Resistance Distribution Overview Drying Defects Ease of Drying Environmental Profile Family Name Gluing Grain Heartwood Color Kiln Drying Rate Kiln Schedules Luster Movement in Service Nailing Natural Durability Numerical Data Odor Painting Planing Polishing Product Sources References Regions of Distribution Resistance to Impregnation Response to Hand Tools Sanding Sapwood Color Scientific Name Screwing Silica Content Staining Strength Properties Texture Trade Name Tree Identification Tree Size Varnishing Veneering Qualities		Scientific Name Erisma uncinatum Trade Name Jaboty Family Name Vochysiaceae Common Names Cambara, Cedrinho, Couaie, Feli kouali, Felli kouali, Jaboti, Jaboty, Jaboty da terra firma, Kokopaie, Leteballibelero, Manonti kaouali, Manonti kouali, Mureillo, Quariuba, Quaruba vermelha, Quarubarana, Quarubatinga, Singri-kwari, Singrie kwarie Regions of Distribution Central America, Latin America Countries of Distribution  [VIEW MAP] Brazil, French Guiana, Guyana, Suriname, Venezuela Common Uses Bedroom suites, Boat building, Boxes and crates, Cabinetmaking, Chairs, Chests, Concrete formwork, Decorative plywood, Desks, Fine furniture, Fuelwood, Furniture , Furniture, Joinery, Living-room suites, Moldings, Office furniture, Packing cases, Plywood, Rustic furniture, Shipbuilding, Tables , Utility furniture, Wardrobes Environmental Profile Status has not been officially assessed Distribution Overview Humid, sub-tropical and tropical forests of Santa Cruz, Beni and Pando in Bolivia. May also be present in the Guianas, Surinam and Venezuela. Heartwood Color Brown Yellow Green/grey Orange Pale red to pink Reddish brown Purplish brown Pale pink brown Pale brown Brown Sapwood Color White Yellow White to yellow Grey Different than heartwood Clearly differentiated from the heartwood Grain Straight Even Straight Texture Fine Medium Medium to coarse Coarse Luster Low Natural Durability Durable Very durable Resistant to marine borers Susceptible to insect attack Resistant to termites Resistant to powder post beetles Susceptible to attack from termites (Isoptera) Susceptible to termite attack Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Sapwood is susceptible to wood staining fungal attack Resistant to attack from powder post (Lyctid & Bostrychid) beetles Moderately durable Durable Good resistance to attack by decay-causing fungi and dry-wood insects Odor No specific smell or taste Silica Content High Slight Kiln Schedules Kiln Drying Rate (in days) is fairly rapid Drying (speed) is fast Drying Defects Checking Distortion Splitting Moderate surface checking Distortion (twist/warp) is likely Checking Ease of Drying Moderately Difficult to Difficult Fairly Easy Slowly Little degrade if dried properly Dries at a fairly rapid rate Kiln Drying Rate Naturally dries at a moderate speed Naturally dries slowly Fairly rapid (11-17 days for boards under 32 mm, to 31-51 days for boards greater than 63 mm) Tree Identification Bole/stem form is buttressed Tree Size Tree height is 30-40 m Sapwood width is 5-10 cm Sapwood width is 0-5 cm Sapwood width is 10-15 cm Bole length is 20-30 m Tree height is 20-30 m Bole length is 10-20 m Tree height is 40-50 m Product Sources The ITTO reports that the species is an important source of timber. The timber is exported regularly, and is imported from Brazil into China. Blunting Effect High to severe Slight effect Blunting effect on machining is fairly severe Boring Easy Cutting Resistance Fairly Difficult to Very Difficult to saw Easy to saw Cutting Resistance with green wood is easy Internal growth stresses may be present. Gluing Fairly Difficult to Very Difficult Good properties Easy to glue Movement in Service Unstable with Poor Stability - Large Movement Fair to Good Stability - Medium Movement Nailing Holds nails well Easy to nail Planing Good planing properties Easy to plane Worked surfaces tend to be fuzzy. Resistance to Impregnation Response to treatment varies from moderate to poor Response to Hand Tools Fairly Difficult to Difficult to Work Easy to machine Sanding Very good characteristics Good sanding finish Easy to sand Screwing Easy to screw Veneering Qualities Suitable for slicing Suitable for peeling No steaming needed during bolt preparation. Easy to cut Bolt preparation requires steaming Painting Good results Polishing Good results Staining Finish is generally good Varnishing Good results Strength Properties Density (dry weight) = 38-45 lbs/cu. ft. Density (dry weight) = 31-37 lbs/cu. ft. Bending strength (MOR) = low Shrinkage, Tangential = large Shrinkage, Radial = fairly large Modulus of Elasticity (stiffness) = medium Max. crushing strength = medium Max. crushing strength = high Bending strength (MOR) = medium Bending strength (MOR) = high Shrinkage, Tangential = moderate Shrinkage, Tangential = fairly large Shrinkage, Radial = small Shrinkage, Radial = moderate Shrinkage, Radial = large Shearing strength (parallel to grain) = very low Modulus of Elasticity (stiffness) = very low Modulus of Elasticity (stiffness) = low Modulus of Elasticity (stiffness) = high Hardness (side grain) = soft Bending strength (MOR) = very high Numerical Data Item Green Dry English Bending Strength 9638 14575 psi Crushing Strength 432 795 psi Density 37 lbs/ft3 Hardness 941 lbs Maximum Crushing Strength 4714 7774 psi Shearing Strength 1019 psi Stiffness 1457 1711 1000 psi Specific Gravity 0.42 0.51 Weight 36 31 lbs/ft3 Radial Shrinkage 4 % Tangential Shrinkage 9 % Volumetric Shrinkage 13 % Item Green Dry Metric Bending Strength 677 1024 kg/cm2 Crushing Strength 30 55 kg/cm2 Density 592 kg/m3 Hardness 426 kg Maximum Crushing Strength 331 546 kg/cm2 Shearing Strength 71 kg/cm2 Stiffness 102 120 1000 kg/cm2 Specific Gravity 0.42 0.51 Weight 576 496 kg/m3 Radial Shrinkage 4 % Tangential Shrinkage 9 % References Bois et Forets des Tropiques,1984,Jaboty - Erisma uncinatum,Bois et Forets des Tropiques Vol. 204 p.57-60 Boone, R.S., C.J. Kozlik, P.J. Bois, E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Hardwoods - Temperate and Tropical. USDA, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, Wisconsin. Chichignoud, M., G. Deon, P. Detienne, B. Parant, and P. Vantomme. 1990. Tropical Timber Atlas of Latin America. International Tropical Timber Organization (ITTO) and Centre Technique Forestier Tropical (CTFT, 45bis, Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, France. Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry Department I.U.F.R.O.,1973,Veneer Species of the World,Assembled at F.P.L. Madison on behalf of I.U.F.R.O. Working Party on,Slicing and Veneer Cutting Sallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.T Takahashi, A.,1975,Compilation of data on the Mechanical Properties of Foreign Woods (Part 2,Central and South America,Shimane University, Japan, Research Report on Foreign Wood No.4 Teixeira, D. E., M. A. E. Santana and M. Rabelo de Souza. 1988. Amazonian Timbers for the International Market. ITTO Technical Series 1. Brazilian Institute for Forestry Development, Brazil.