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Blunting Effect Boring Carving Certified Source Comments Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Ease of Drying Environmental Profile Family Name Gluing Grain Heartwood Color Kiln Drying Rate Luster Mortising Moulding Movement in Service Nailing Natural Durability Numerical Data Odor Painting Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Routing & Recessing Sanding Sapwood Color Scientific Name Screwing Silica Content Staining Steam Bending Strength Properties Texture Trade Name Tree Identification Tree Size Turning Varnishing Veneering Qualities Scientific Name Calycophyllum spruceanum Trade Name Bayabochi Family Name Rubiaceae Common Names Bayabochi, Capirona, Capirona del bajo, Capirona negra, Corusicao, Guayabete, Guayabochi, Pau marfim, Pau mulato Regions of Distribution Latin America Countries of Distribution  [VIEW MAP] Bolivia, Brazil, Colombia, Ecuador, Peru, Venezuela Common Uses Boat building: decking, Flooring, Fuelwood, Furniture, Heavy construction, Light construction, Railroad ties, Textile equipment, Turnery, Vehicle parts Environmental Profile Rare Abundant/Secure Vulnerable Heartwood Color Brown Red Pink White Yellow Orange Tan Yellow to golden-yellow to orange Pale brown Sapwood Color Yellow White Brown Pink Red White to yellow Paler than heartwood Color not distinct from heartwood Grain Straight Interlocked Even Straight Interlocked Texture Coarse Medium Fine Luster Medium High Slightly lustrous Lustrous Natural Durability Susceptible to insect attack Non-resistant to powder post beetles Non-durable Non-resistant to termites Perishable Non-resistant to marine borers Non durable Moderately durable Durable Odor Has an odor Silica Content High Drying Defects Collapse Internal Honeycombing Possible Splitting Checking Distortion Extension of Existing Shakes Ring Shakes Moderate surface checking Ease of Drying Fairly Easy Slowly Rapidly Medium to High Shrinkage Kiln Drying Rate Naturally dries slowly Naturally dries quickly Very slow Drying rate is slow Tree Identification Bole/stem form is straight Tree Size Trunk diameter is 100-150 cm Sapwood width is 10-15 cm Bole length is 20-30 m Tree height is 40-50 m Bole length is 10-20 m Tree height is 30-40 m Trunk diameter is 150-200 cm Sapwood width is 5-10 cm Tree height is 20-30 m Sapwood width is 0-5 cm Bole length is 30-40 m Tree height is 50-60 m Bole length is less than 10 m Tree height is 10-20 m Certified Source Certified Source Comments General finishing qualities are rated as good Blunting Effect High to severe Little Boring Fair to good results Fairly difficult to very difficult Carving Fairly Difficult to Very Difficult Cutting Resistance Fairly Difficult to Very Difficult to saw Easy to saw Gluing Fairly Easy to Very Easy Fair to Good Results Mortising Fairly Difficult to Very Difficult Moulding Very Good to Excellent Results Fairly Difficult to Very Difficult Fair to Good Results Movement in Service Fair to Good Stability - Medium Movement Stable Nailing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Planing Fairly Easy to Very Easy Fair to Good Results Resistance to Impregnation Resistant heartwood Resistant sapwood Permeable sapwood Heartwood is resistant Response to Hand Tools Easy to Work Responds Readily Fairly Difficult to Difficult to Work Moderate working qualities Routing & Recessing Fairly Difficult to Very Difficult Sanding Fairly Difficult to Very Difficult Fair to Good Results Fairly Easy to Very Easy Screwing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Turning Fair to Good Results Fairly Difficult to Very Difficult Veneering Qualities Suitable for slicing Suitable for peeling Veneers easily Veneers moderately easy Difficult to veneer Steam Bending Poor to Very Poor Results Unsuitable Fairly Difficult to Very Difficult Painting Fair to Good Results Fairly Easy to Very Easy Polishing Fair to Good Results Staining Fair to Good Results Very Good to Excellent Results Fairly Easy to Very Easy Varnishing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Strength Properties Max. crushing strength = high Bending strength (MOR) = high Shrinkage, Radial = moderate Density (dry weight) = 53-60 lbs/cu. ft. Density (dry weight) = 46-52 lbs/cu. ft. Shrinkage, Tangential = moderate Shrinkage, Tangential = fairly large Modulus of Elasticity (stiffness) = high Hardness (side grain) = very hard Hardness (side grain) = hard Numerical Data Item Green Dry English Bending Strength 13576 20956 psi Density 51 lbs/ft3 Hardness 2628 lbs Maximum Crushing Strength 6899 9945 psi Stiffness 2167 2494 1000 psi Weight 50 40 lbs/ft3 Radial Shrinkage 4 % Tangential Shrinkage 8 % Item Green Dry Metric Bending Strength 954 1473 kg/cm2 Density 817 kg/m3 Hardness 1192 kg Maximum Crushing Strength 485 699 kg/cm2 Stiffness 152 175 1000 kg/cm2 Weight 801 641 kg/m3 Radial Shrinkage 4 % References Altamirano, S.V.,1992,Maderas de Bolivia (Caracteristicas y usos de 55 maderas tropicals,Camara Nacional Forestal Ducke, A.,1943,The Most Important Woods of the Amazon Valley,Tropical Woods,12(74,pp1-15 Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry Department Highley, T.L., Scheffer, T.C.,1970,Natural Decay Resistance of 30 Peruvian Woods,U.S.A. Agriculture Department, Forest Service, Forest Products Laboratory,,Madison Research Paper,No.143 Kukachka, B.F.,1970,Properties of Imported Tropical Woods,Forest Research Paper FPL 125 Peru - P.A.D.T.,1981,Descripcion general y anatomica de 105 Maderas del Grupo Andino,Junta del Acuerdo de Cartagena, P.A.D.T. Report, Junac, Lima, Peru. U.S.D.A. Forest Service,1974,Wood Handbook,U.S.A. Department of Agriculture, Forest Service Handbook,72