Bois de soie (Sapium aucuparium)
Family: Euphorbiaceae
Common names: Bois de soie, Bois lait, Milkwood
Common uses: Shingles
Environment profile: Abundant/Secure
Colors: the heart isWhite to cream, Yellowand the sapwoodGrey, White.The grain isStraight, the textureUniformand the lusterLow
Natural durability: Sapwood is susceptible to wood staining fungal attack, Susceptible to attack from termites (Isoptera)
Drying Defects: Checking, Distortion
Ease of Drying: Moderately Difficult to Difficult
Comments: General finishing qualities are rated as good
Boring: Very good to excellent results
Carving: Fairly Easy to Very Easy
Cutting Resistance: Easy to saw
Mortising: Wavy
Moulding: Very Good to Excellent
Movement in Service: Very Good to Excellent
Planing: Fairly Easy to Very Easy
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Responds Readily
Routing recessing: Fairly Easy to Very Easy
Sanding: Fairly Easy to Very Easy
Turning: Very Good to Excellent Results
Polishing: Fairly Easy to Very Easy;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
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Density |
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512 |
kg/m3 |
Bending Strength |
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kg/cm2 |
Crushing Strength |
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kg/cm2 |
Hardness |
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kg |
Impact Strength |
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cm |
Shearing Strength |
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kg/cm2 |
Stiffness |
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1000 kg/cm2 |
Tangential Shrinkage |
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% |
Radial Shrinkage |
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% |
Weight |
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kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
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cm-kg |
Static Bending |
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kg/cm2 |
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| | | | Item | Green | Dry | English | Density | | 32 | lbs/ft3 | Weight | 31 | 25 | lbs/ft3 | |
Density (dry weight) = 31-37 lbs/cu. ft.
Brooks, R.L., et al,1941,Durability tests on Untreated Timbers in Trinidad,Caribbean Forester,2(3,pp101-119Carter, D.T.,1943,The Manufacture of shingles from local woods in Trinidad and Tobago,Caribbean Forester,4(3,pp107-11Lamb, A.F.A., Wangaard, F.F.,1950,The Gluing Properties of certain Tropical American Woods,Yale Univ. School of Forestry Technical Report,4Marshall, R.C.,1934,Trees of Trinidad and Tobago,Government Printer Port of Spain Trinidad
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