Balata blanc (Couratari panamensis)
Family: Lecythidaceae
Common names: Balata blanc, Congolo garepelo, Couratari, Ipipjo, Mari-mori, Oelemali, Tabari, Tauary, Wadala
Common uses: Heavy construction, Light construction
Environment profile: Rare
Tree size: Trunk diameter is 200-250 cm
Colors: the heart isRed, Yellowand the sapwoodWhite to yellow, Yellow.The grain isWavy, the textureMediumand the lusterPronounced
Natural durability: Resistant to powder post beetles, Susceptible to insect attack
Drying Defects: Checking, Splitting
Ease of Drying: Rapidly
Tree Identification: Bole/stem form is buttressed
Comments: General finishing qualities are rated as satisfactory
Blunting Effect: Moderate
Boring: Fair to good results
Carving: Fairly Easy to Very Easy
Cutting Resistance: Easy to saw
Mortising: Fairly Easy to Very Easy
Moulding: Fairly Easy to Very Easy
Movement in Service: Fairly Easy to Very Easy
Nailing: Fairly Easy to Very Easy, Very Good to Excellent
Planing: Straight
Response to hand tools: Responds Readily
Routing recessing: Fairly Easy to Very Easy
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Poor to Very Poor Results
Screwing: Fairly Easy to Very Easy, Very Good to Excellent Results; Turning: Fairly Easy to Very Easy
Painting: Fair to Good; Polishing: Fair to Good; Staining: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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| Item |
Green |
Dry |
Metric |
| Specific Gravity |
|
|
|
| Density |
|
|
kg/m3 |
| Bending Strength |
429 |
674 |
kg/cm2 |
| Crushing Strength |
|
|
kg/cm2 |
| Hardness |
|
|
kg |
| Impact Strength |
|
|
cm |
| Shearing Strength |
|
|
kg/cm2 |
| Stiffness |
117 |
135 |
1000 kg/cm2 |
| Tangential Shrinkage |
|
|
% |
| Radial Shrinkage |
2 |
|
% |
| Weight |
|
|
kg/m3 |
| Maximum Load |
|
|
cm-kg/cm3 |
| Toughness |
|
|
cm-kg |
| Static Bending |
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kg/cm2 |
|
 |  |  |  | | Item | Green | Dry | English | | Bending Strength | 6111 | 9589 | psi | | Stiffness | 1665 | 1923 | 1000 psi | | Radial Shrinkage | 2 | | % | | Tangential Shrinkage | 4 | | % | |
Shrinkage, Tangential = very small Shrinkage, Radial = very small Modulus of Elasticity (stiffness) = medium Bending strength (MOR) = low
Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressTakahashi, 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
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