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PODOCARP (Dacrycarpus imbricatus)
Trade Name
Podocarp
Scientific Name
Dacrycarpus imbricatus (Blume) de Laub.
Family
PODOCARPACEAE
Common Names
Thong nang (Vietnam); Long leng (Laos); Phayamai (Thailand); Pek deng (Laos); Podo chucher atap (Malaysia); Sha-mo-pin (Myanmar); Kayu embun (Indonesia); Jamuju (Indonesia); Phaya-makhampom dong (Thailand); Podo (Malaysia); Black pine (Malaysia); Kayu cin (Malaysia); Melur (Indonesia); Podocarp (Papua New Guinea); Sempinur (Malaysia); Igem (Philippines)
Scientific Name Synonyms
Podocarpus kawaii Hayata; Podocarpus imbricata Blume
Description Of The Tree
Botanical Description
It is a large, majestic tree up to 50 m tall. The bole is up to 200 cm in diameter.
Natural Habitat
Dacrycarpus imbricatus is found scattered in rain forests from low elevation to about 3,000 m of altitude. It is a canopy or emergent tree in primary forests.
Natural Distribution
It occurs in Thailand, Java, Lesser Sunda Islands and occasionally Sulawesi and island of Borneo.
Wood Identification
Anatomic Description Of Wood
Occasionally axial parenchyma apparent with the naked eye. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. 4 to 10 rays per mm (medium). Occasionally rays exclusively uniseriate.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
It has no taste or odor.
Color
The sapwood is hardly distinct, somewhat lighter in color than the heartwood. The heartwood is pale light yellowish brown, darkening to light golden brown, slight greenish tinge.
COLOR INDEX (1=Black, 7=Light yellow,white)
7
Grain
This species is reported to have straight grain.
Texture
The wood is frequently reported to be fine textured.
Luster
The surface of the wood is naturally moderate in luster.
Natural Durability
The natural durability in tropics is extremely doubtful, but fairly durable in moderate climates.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Silica Content
Silica Content: Negligible content of silica is reported. Amounts over 0.05% may affect wood processing. Silica Value: 0
Resistance To Impregnation
The sapwood is permeable, heartwood penetration by preservatives is fair to good.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.50
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.54
Total shrinkage Tangential (Saturated to 0%MC) (%)
7.4
Total shrinkage Radial (Saturated to 0%MC) (%)
3.8
Drying Defects
Ease of Drying: Boards 15 mm thick take 2-3 months to air dry. Drying Defects: During drying the timber may be prone to checking and splitting. Kiln Schedules: Boards 25 mm thick can be kiln dried in 10 days from 50% to 10% moisture content.
Recommended Dry Kiln Schedule
UK-G
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.0
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
795
Stiffness (MOE) 12%MC (kgf/cm²)
93493
Compression parallel to fiber 12%MC (kgf/cm²)
479
Shear strength radial 12%MC (kgf/cm²)
122
Janka hardness (side) 12%MC (kgf)
363
Janka hardness (end grain) 12%MC (kgf)
570
Workability
Sawing
Cutting resistance is generally low.
Rotary Veneer Cutting
The peeling and slicing properties are rated as good with a negligible degrade upon drying. Pretreatment is not needed.
Sliced Veneer
The peeling and slicing properties are rated as good with a negligible degrade upon drying. Pretreatment is not needed.
Machining
This species is easy to machine.
Planing
Planing of this species is reported to be easy.
Moulding
Molding operations are rather easy.
Turning
30
Boring
The response of this species to boring operations is good to fair.
Mortising
This species is easy to mortise.
Nailing
Large nails may cause some splitting.
Gluing
It is reported to be easy to glue.
Sanding
It has a good sanding behavior.
Finishing
It has a good finishing.
Staining
This species is reported to be easy to stain.
Coatings
It is easy to paint or varnish.
Response To Hand Tools
It has a good response to hand tools.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, beams, boards, frames, steps, panelling, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, TURNING, TOOLS, agricultural tools, PACKING, light packing, NAVAL CONSTRUCTION, boats, OTHER AND MUSICAL INSTRUMENTS, handicrafts, pencil, matches, axle, moldings
General Housing
- 10 - Silica in Timbers
Beams
- 11 - Prospect: The wood database
Boards
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Frames
- 16 - Woods of the World
Steps
- 17 - Tree Conservation Database
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Cabinet
- 24 - Empire Timbers
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Turning
- 30 - Embassy of Honduras in Japan
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Agricultural Tools
- 44 - Atlas of Peruvian Woods
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Light Packing
- 46 - ECUADOR, Inventario y Aprovechamiento de los Bosques del Sur Ecuatoriano
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boats
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Handcraft
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Pencils
- 67 - Maderas latinoamericanas. VIII, Calophyllum brasilense, Couratari panamensis, Dendropanax arboreum y Bombacopsis sessilis
Matches
- 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
Axles
- 73 - Handbook of Hardwoods
Molding
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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