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LUDAI (Sapium baccatum)
Trade Name
Ludai
Scientific Name
Sapium baccatum Roxb.
Family
EUPHORBIACEAE
Common Names
Rulus; Pudlikat; Mayang; Mamas-mamas pelandok; Ludahi; Lelun; Larrna; Lal kainjal; Kradard; Kayu nilus; Kadat; Boedi; Billa; Bedi; Adamsali; Ludai pelandok (Malaysia); Ludai (Indonesia); Budi (Indonesia); Banai (Indonesia); Pho bai (Thailand); Salee nok (Thailand); Mousedeer`s rubber tree; Ludai (Sumatra); Memaya (Malaysia)
Scientific Name Synonyms
Stillingia baccata (Roxb.) Baill.; Sapium populifolium Wallich ex Wight; Excoecaria baccata (Roxb.) Müll. Arg.; Excoecaria affinis Griff.; Carumbium baccatum (Roxb.) Kurz
Description Of The Tree
Botanical Description
It is a deciduous, monoecious, small to medium-sized trees up to 30 m tall. The bole is columnar to sinuous, up to 60 cm in diameter, sometimes fluted at base or with steep buttresses.
Natural Habitat
Sapium species are found scattered in well drained primary and secondary evergreen to deciduous rain forests, up to 800 m of altitude.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Occasionally vessels in radial multiples of 4 or more common. Tangential diameter of vessel lumina 200 micras or more (large). Vessels per mm2 5 to 20. Vessels per mm2 less than 6 (rare). Simple perforation plates. Intervessel pits medium, Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Siliceous bodies in the axial parenchyma cells. 5 to 8 cells per parenchyma strand. Over 9 cells per parenchyma strand. Axial parenchyma in narrow bands on lines up to 3 cells wide. Rays more than 10 per mm (abundant). Ray height more than 1 mm. Rays exclusively uniseriate. Silica bodies in the ray cells. All ray cells upright and/or square. Body ray cells procumbent with over 4 rows of upright and/or square marginal cells (Kribs-I). Fibers very thin walled. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is pale yellow-brown, not clearly differentiated from the sapwood.
Grain
The grain is straight to deeply interlocked, occasionally wavy.
Texture
The texture is moderately coarse and even.
Natural Durability
It is non-durable under exposed conditions.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Resistance To Impregnation
It is a permeable wood, with good preservatives retention.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.36
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.38
Total shrinkage Tangential (Saturated to 0%MC) (%)
4.9
Total shrinkage Radial (Saturated to 0%MC) (%)
2.1
Drying Defects
Ease of Drying: Drying is easy; it can be performed without any problem. Drying Defects: No particular risks of drying defects, subject to normal drying conditions. Kiln Schedules: The kiln schedule has been tested.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.3
Wood Chemical Properties
Wood Mechanical Properties
Workability
Sawing
Sawing of this species is easy.
Rotary Veneer Cutting
It is used for cores in veneer or plywood.
Sliced Veneer
It is used for cores in veneer or plywood.
Planing
This species is easy to plane, giving a smooth surface.
REFERENCED USES
End Uses Summary
PLYWOOD AND VENEER, cores, TOOLS, tool handles, PACKING, OTHER AND MUSICAL INSTRUMENTS, particleboard
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Cores
- 27 - Embassy of Brazil in Japan
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Particleboard
- 80 - Estudio Integral de la Madera para Construcción
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