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Sajo
Sajo (Campnosperma panamensis)

Family: Anacardiaceae

Common names: Hoary, Orey, Orey wood, Sajo

Distributed in: Brazil, Colombia, Columbia, Costa Rica, Ecuador, Nicaragua, Panama, Peru (Central America, Latin America)

Distribution overview: Reported in the Atlantic lowlands of northern Panama, adjacent Costa Rica, and Pacific coastal regions of Colombia; forms almost pure stands in these marshy areas.

Common uses: Baskets, Bent Parts, Boxes and crates, Building materials, Cabinetmaking, Chairs, Chests, Decorative plywood, Desks, Dining-room furniture, Drawer sides, Fiberboard, Fine furniture, Food containers, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Interior construction, Interior trim, Kitchen cabinets, Light construction, Living-room suites, Millwork, Moldings, Office furniture, Particleboard, Pencil, Plywood, Pulp/Paper products, Pulpwood, Radio - stereo - TV cabinets, Rustic furniture, Stools, Structural plywood, Utility furniture, Utility plywood, Wardrobes

Environment profile: Vulnerable in parts of its natural habitat

Tree size: Trunk diameter is 150-200 cm

Colors: the heart isYellow to golden-yellow to orange, Yellowish tanand the sapwoodWhite, Yellow.The grain isStraight, the textureMediumand the lusterSlightly lustrous

Natural durability: Susceptible to insect attack, Very durable

Odor: Seasoned wood has no characteristic odor or taste

Kiln Schedules: UK=G US=T8B3/T5B1

Kiln Drying Rate: Very slow

Drying Defects: Resin Exudation, Splitting

Ease of Drying: Variable

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as good

Blunting Effect: Slight effect

Boring: Fairly easy to very easy

Carving: Fair to Good Results

Cutting Resistance: Low resistance

Gluing: Fairly Easy to Very Easy

Mortising: Moderately easy to mortise

Moulding: Moulding ease is moderate

Movement in Service: Moulding ease is moderate

Nailing: Pre-Boring Recommended, Very Good to Excellent

Planing: Very Good to Excellent

Resistance to Impregnation: Wood is easily treated

Response to hand tools: Responds Readily

Routing recessing: Routs well with average machine tools

Sanding: Very Good to Excellent Results

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Unsuitable

Screwing: Good screw holding properties, Pre-boring recommended; Turning: Very Good to Excellent Results

Painting: Very Good to Excellent; Polishing: Very Good to Excellent; Staining: Very Good to Excellent; Varnishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,29
Density 384 kg/m3
Bending Strength 379 619 kg/cm2
Crushing Strength 191 352 kg/cm2
Hardness 170 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 80 101 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 5395 8807 psi
Density 24 lbs/ft3
Hardness 375 lbs
Maximum Crushing Strength 2723 5020 psi
Stiffness 1141 1445 1000 psi
Specific Gravity 0.29
Weight 25 20 lbs/ft3

Bending strength (MOR) = low
Max. crushing strength = low
Modulus of Elasticity (stiffness) = very low
Modulus of Elasticity (stiffness) = low
Density (dry weight) = 23-30 lbs/cu. ft.
Max. crushing strength = medium
Weight = moderate
Surfaces may dent or scratch easily
Surfaces may dent easily
Hardness (side grain) = very soft
Density (dry weight) = 15-22 lbs/cu. ft.
Compression strength (parallel to grain) = low
Bending strength (MOR) = very low
Bending strength (MOR) = medium
Bending strength of the species is considered medium, being much weaker than White oak or Teak in the air-dry condition (about 12 percent moisture content). Maximum crushing strength, or compression strength parallel to grain, is low. It is weaker than Mahogany or Teak. The wood is soft, and surfaces may dent easily. It also does not wear well, and mars easily. The weight is moderate. The species has average, or medium, density.

Bendtsen, B.A., Chudnoff, M.,1981,Properties of Seven Colombian Woods,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison Research Note FPL0242Brown, W.H.,1978,Timbers of the World, No. 2 South America,TRADA, Red Booklet SeriesChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry DepartmentTakahashi, 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.4WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.
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