Bacoropary (Platonia insignis)
Family: Guttiferae
Common names: Bacoropary, Bacupary, Bacuri-acu, Bacury, Bacury-guazu, Geelhart, Ibacuri, Mango mataaki, Manil, Manilparcouri, Matazama, Matazana, Matoumani, Pacuru, Pahoorie, Pakoeli, Pakoueli, Pakuri, Pakvri, Paracouril, Parcouri, Parcouri jaune, Parcouri soufre, Ussa fouka, Wild mammee apple
Distributed in: Brazil, Colombia, Ecuador, Guyana, Paraguay (Latin America)
Common uses: Boat building (general), Boxes and crates, Bridge construction, Cabinetmaking, Cooperages, Flooring, Furniture, Heavy construction, Joinery, Light construction, Paneling, Railroad ties, Turnery, Vats, Vehicle parts, Veneer: decorative
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isStriped figure, the textureMedium to coarseand the lusterSlightly lustrous
Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to insect attack
Kiln Schedules: Dry at a slow speed
Drying Defects: Moderate surface checking, Moderate twist/warp
Ease of Drying: Moderate
Tree Identification: Bole/stem form is not buttressed
Comments: General finishing qualities are rated as good
Gluing: Fairly Easy to Very Easy
Nailing: Possible if prebored, Very Good to Excellent
Planing: Very Good to Excellent
Response to hand tools: Easy to machine
Steam bending: Poor to Very Poor Results
Painting: Very Good to Excellent; Polishing: Very Good to Excellent; Varnishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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| Item |
Green |
Dry |
Metric |
| Specific Gravity |
|
|
|
| Density |
|
769 |
kg/m3 |
| Bending Strength |
1201 |
1726 |
kg/cm2 |
| Crushing Strength |
485 |
699 |
kg/cm2 |
| Hardness |
|
928 |
kg |
| Impact Strength |
|
|
cm |
| Shearing Strength |
|
102 |
kg/cm2 |
| Stiffness |
134 |
156 |
1000 kg/cm2 |
| Tangential Shrinkage |
|
|
% |
| Radial Shrinkage |
5 |
|
% |
| Weight |
753 |
608 |
kg/m3 |
| Maximum Load |
|
|
cm-kg/cm3 |
| Toughness |
|
|
cm-kg |
| Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | | Item | Green | Dry | English | | Bending Strength | 17091 | 24555 | psi | | Density | | 48 | lbs/ft3 | | Hardness | | 2046 | lbs | | Maximum Crushing Strength | 6899 | 9945 | psi | | Shearing Strength | | 1453 | psi | | Stiffness | 1919 | 2224 | 1000 psi | | Weight | 47 | 38 | lbs/ft3 | | Radial Shrinkage | 5 | | % | | Tangential Shrinkage | 9 | | % | |
Shrinkage, Tangential = large Max. crushing strength = high Density (dry weight) = 46-52 lbs/cu. ft. Shrinkage, Radial = fairly large Bending strength (MOR) = very high Density (dry weight) = 53-60 lbs/cu. ft Shrinkage, Tangential = fairly large Shrinkage, Radial = large Shearing strength (parallel to grain) = very low Hardness (side grain) = medium Shrinkage, Radial = moderate Shearing strength (parallel to grain) = medium Shearing strength (parallel to grain) = low Modulus of Elasticity (stiffness) = high Density (dry weight) = 38-45 lbs/cu. ft. Bending strength (MOR) = medium Shrinkage, Tangential = moderate Modulus of Elasticity (stiffness) = very low Modulus of Elasticity (stiffness) = very high Modulus of Elasticity (stiffness) = medium Hardness (side grain) = very hard Hardness (side grain) = hard Bending strength (MOR) = high
Almeida, D.G. de, Costa, J.R. da,1956,Madeiras do Brasil. (Timbers of Brazil.,Min. Ag. Servico de Economia Rural, Rio de Janeiro, Brazil,pp56Bena, P.,1960,Essences Forestieres de Guyane,Bureau Agricole et Forestier Guyanais GuyanaBerni, C.A., Bolza, E., Christensen, F.J.,1979,South American Timbers - The Characteristics, Properties and Uses of 190,Species,C.S.I.R.O Div. Building ResearchBrown, W.H.,1978,Timbers of the World, No. 2 South America,TRADA, Red Booklet SeriesCaribbean Commission,1952,Information on properties of timbers gathered by questionnaire and,collated in the secretariat of the Caribbean Commission including some,related data from technical literature.,Caribbean Commission, Port of Spain, Trinidad Caribbean Timbers, their,Utilization and Trade within the area CTUTA/1/Doc.7 + App.1-18Demougeot, M.,1934,Les bois de la Guyane Francaise. Le Mahil et le parcowil,Revue International Du Bois 1(11) pp54-59Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry DepartmentFanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1France - C.T.F.T.,Parcouri - Platonia insignis,C.T.F.T. Information Technique 279Kribs, D.A.,1950,Commercial and Foreign Woods on the American Market (a manual to their,structure, identification, uses and distribution,U.S.A. Penn. State College, Tropical Woods LaboratoryLongwood, F.R.,1962,Commercial Timbers of the Caribbean,U.S.A. Department of Agriculture, Agriculture Handbook,No.207Loureiro, A.A., Freitas da Silva, M.,1968,Catalogo das Madeiras da Amazonia (2 vols,Min. do Ultramar Belem BrasilPolak, A.M.,1992,Major Timber Trees of Guyana A Field Guide,The Tropenbos Foundation Wageningen, The NetherlandsRecord, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressRecord, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. PressSallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.TSallenave, P.,1971,Proprietes Physiques et Mecaniques des Bois Tropicaux (Deuxieme,Supplement,C.T.F.T.Surinam Forest Service,1952,Surinam Timber - A Summary with brief descriptions of the main timber,species of Surinam,Surinam Forest ServiceTakahashi, 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.4Tamolang, F.N., Martawijaya, A., Kartasujana, I., Kadir, K., Parwira, S.,1992,Indonesian Wood Atlas Volume II,Department of Forestry, Agency for Forestry Research and Development,,Bogor-IndonesiaTropical Woods,1968,Madeiras Comercias Brasileiras,Inst. Pesq. Tec. Sao Paulo Brazil Publ.,857Vink, A.T.,1965,Surinam Timbers,Surinam Forest Service Paramaribo,3rd rev. ed.Wolcott, G.N.,1950,An Index to the Termite Resistance of Woods,Agricultural Experimental Station, University of Puerto Rico Bulletin,No.85
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