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Mersawa
Anisoptera grossivenia v. Slooten
Dipterocarpaceae
Merkunyit (Sarawak); Mersawa kunyit (Malaysia); Damar kelasi (Indonesia); Kantooi (Indonesia); Cangal padi (Indonesia); Merbakau (Brunei Darussalam); Benchaloi (Brunei Darussalam); Venven (Vietnam); Krabak (Thailand); Krabak (United Kingdom); Pik (Thailand); Mersawa (Indonesia); Krabak (Spain); Krabak (United States of America); Mersawa (Malaysia); Krabak (France); Phdiek (Cambodia); Pengiran kasar (Sabah); Krabak (Germany); Mersawa (Germany); Palosapis (Philippines); Kaunghmu (Myanmar); Mersawa (Netherlands); Krabak (Netherlands); Mersawa (Papua New Guinea); Krabak (Italy)
It is a large tree up to 60 m tall. The bole is tall, straight and branchless for 14- to 30 m, up to 145 cm in diameter. The buttresses are of moderate size, spreading out as large surface roots.
A lowland dipterocarp forest species found growing on sandy clayey soils.
Wood diffuse porous. Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Tyloses common. Vestured pits. Vessels per mm2 5 to 20. Vascular/vasicentric tracheides present. Simple perforation plates. Intervessel Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma scalariform. Larger rays more than 4 seriate. Sheath cells. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Fibers with distinctly bordered pits.
Unrestricted
The sapwood is not clearly differentiated from the heartwood, which is pale yellow to yellowish brown.
6
This species is reported to have interlocked grain.
The texture is medium to coarse.
The natural durability ranges from moderate to perishable. It is rapidly attacked if unprotected.
6
Silica Content: It is reported to have silica. Contents over 0.05% may affect wood processing. Silica Value: 0
0.65
0.73
Ease of Drying: Seasoning is reported as good. Drying Defects: Risk of slight checking or twisting.
JP-2; UK-E
The cutting resistance can be reduced by using correct saw profiles and specially hardened saw teeth. Stellite tipped saws are necessary.
Peeling yields good quality veneer, although the veneer dries slowly and with slight buckling.
Peeling yields good quality veneer, although the veneer dries slowly and with slight buckling.
The wood has a severe blunting effect.
It is easy to work, but if interlocked grain is present sharp cutters are essential.
The planed surface is smooth when sharp tools are used.
Boring operations are rather easy.
Nailing is reported as easy.
Gluing behavior is reportedly good.
This species is reported to be easy to finish.
HOUSING GENERAL, beams, frames, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, PACKING, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION
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