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Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Gluing
Grain
Heartwood Color
Kiln Drying Rate
Kiln Schedules
Luster
Nailing
Natural Durability
Numerical Data
Odor
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Strength Properties
Texture
Trade Name
Tree Size
Varnishing
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Common Names
Brush Box, Malabayabas, Tiga, Tinadan
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
Philippines
Common Uses
Barge fenders, Bearings & bushings, Building construction, Building materials, Bushing blocks, Cabin construction, Construction, Docks, Dockwork, Domestic flooring, Factory construction, Farm vehicles, Flooring, Harbor work, Heavy construction, Machinery parts, Marine construction, Mine timbers, Naval architecture, Parquet flooring, Poles, Pulley wheels, Raft floats, Rafts, Shipbuilding, Sub-flooring, Textile equipment, Utility poles, Wharf construction, Wheels
Environmental Profile
| Vulnerable in parts of its natural habitat |
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| Data source is World Conservation Monitoring Center |
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Vulnerable in the Phillipines
Distribution Overview
The genus Tristania is composed of small to medium-sized trees that occur in the Indo-Malayan region, extending into Australia, the Philippines, and Indonesia. Some species in the genus have also been introduced into other tropical regions. In the Philippines,Tristania decorticata is generally found on low ridges near the coast.
Heartwood Color
| Red |
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| Brown |
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| Purple |
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| Pink |
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| Darkens after prolonged exposure |
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| Dark brown |
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| Black |
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Sapwood Color
| Red |
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| Sapwood merges gradually into the heartwood |
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| Light brown |
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It is usually about 0.4 to 1.1 inches (1 to 3 cm) wide.
Grain
| Closed |
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| Figure |
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| Irregular |
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| Wavy |
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Texture
Luster
Natural Durability
| Moderately durable |
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| Resistant to termites |
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| Resistant to termite attack |
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| Resistant to attack by marine borers |
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Odor
| No specific smell or taste |
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Kiln Schedules
| T3 - C2 (4/4); T3 - C1 (8/4) US/T3 - C2 (4/4); T3 - C1 (8/4) U |
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Drying Defects
The timber, especially backsawn material, is liable to warp and check during drying
Ease of Drying
| Slowly |
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| Highly prone to degrade |
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| Difficult to season |
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It requires a mild schedule when green. Air-drying to 30% moisture content before kiln-drying has been recommended to minimize defects
Kiln Drying Rate
Tree Size
The trees often develop irregular boles and pronounced buttresses
Comments
Deposits - Vessels contain a reddish extractive.
Cutting Resistance
| Easy to saw |
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| Cutting resistance with dry wood is moderate |
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Gluing
Nailing
| Very Good to Excellent Results |
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| Fair to Good Results |
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| Pre-boring required |
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Planing
| Fairly Easy to Very Easy |
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| Very Good to Excellent Results |
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| Fair to Good Results |
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| Difficult to plane |
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The timber is described as hard and strong, and is rather difficult to work with ordinary machine tools in planing, turning, boring, moulding, and other operations
Resistance to Impregnation
| Resistant heartwood |
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| Resistant sapwood |
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| Heartwood is extremely resistant |
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Response to Hand Tools
| Easy to Work |
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| Responds poorly to hand tools |
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Polishing
| Fair to Good Results |
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| Very Good to Excellent Results |
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Varnishing
| Very Good to Excellent Results |
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| Fair to Good Results |
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| Fairly Easy to Very Easy |
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Strength Properties
| Very heavy |
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| Very hard |
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| Very dense |
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| Resists denting and marring |
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| Compression strength (parallel to grain) = high |
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| Bending strength (MOR) = high |
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It is exceptionally hard and very difficult to work with ordinary tools. It does not marr or dent, except under extreme conditions. The wood is exceptionally heavy. It weighs much more than Hard maple or Teak in the green or seasoned condition. The wood is very dense.
Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 17005 | 26413 | psi |
| Crushing Strength | 2209 | 3116 | psi |
| Density | | 62 | lbs/ft3 |
| Hardness | | 4258 | lbs |
| Maximum Crushing Strength | 7533 | 13024 | psi |
| Shearing Strength | | 2439 | psi |
| Static Bending | 9450 | 16099 | psi |
| Stiffness | 2258 | 2780 | 1000 psi |
| Toughness | | 641 | inch-lbs |
| Specific Gravity | 0.89 | 1.03 | |
| Weight | 61 | 50. | lbs/ft3 |
| Radial Shrinkage | 5 | | % |
| Tangential Shrinkage | 9 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 1195 | 1857 | kg/cm2 |
| Crushing Strength | 155 | 219 | kg/cm2 |
| Density | | 993 | kg/m3 |
| Hardness | | 1931 | kg |
| Maximum Crushing Strength | 529 | 915 | kg/cm2 |
| Shearing Strength | | 171 | kg/cm2 |
| Static Bending | 664 | 1131 | kg/cm2 |
| Stiffness | 158 | 195 | 1000 kg/cm2 |
| Toughness | | 738 | cm-kg |
| Specific Gravity | 0.89 | 1.03 | |
| Weight | 977 | 801. | kg/m3 |
| Radial Shrinkage | 5 | | % |
References
Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.
Desch, H. E. 1954. Manual of Malayan Timbers - Volume II. Malayan Forest Records, No. 15. Malaysia Publishing House Ltd., Singapore.
Keating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1
Lauricio, F. M., Bellosillo, S. B., The Mechanical and Related Properties of Philippine Woods, The Philippine Lumber Journal, 12(5):A-H
Schneider, E.E. 1916. Commercial Woods of the Philippines: Their Preparation and Uses. Bulletin No. 14. Department of the Interior, Bureau of Forestry, Manila, Philippines.
WCMC. 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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