Color/Appearance: Heartwood color initially almost white, darkening to a yellowish brown color with age. Sapwood isn’t clearly distinguished from heartwood.
Grain/Texture: Grain is usually straight, or occasionally interlocked. With a uniform medium to fine texture and good natural luster.
Endgrain: Diffuse-porous; large pores in no specific arrangement, very few to few; radial multiples of 2-5 common; growth rings indistinct; narrow to medium rays usually not visible without lens, spacing wide to normal; parenchyma diffuse-in-aggregates.
Rot Resistance: Generally rated as non-durable to perishable regarding decay resistance, and also susceptible to insect attack.
Workability: Jelutong’s low density make it very easy to work with both hand and machine tools. Some gum buildup may occur on cutting tools, but overall results are good. Glues, stains, turns, and finishes well.
Odor: Jelutong can have a distinct sour odor while being worked.
Pricing/Availability: Not commonly available in North America. The tree has been overharvested in some areas, though it is not actually threatened with extinction. Occasionally available as carving blanks or as lumber. Prices are moderate for an imported species.
Sustainability: This wood species is not listed in the CITES Appendices, and is reported by the IUCN as being a species of least concern.
Common Uses: Patternmaking, carving, and other small specialty wood items.
Comments: Jelutong is a lesser-known Asian species that’s appreciated for its uniform appearance, softness, dimensional stability, and ease of carving. The wood is used in much the same way as Basswood (Tilia americana).
In addition to being utilized for lumber, the tree yields a natural latex when tapped. This latex was used for chewing gum, though nearly all gum is now made from synthetic rubber rather than natural.
S2S JELUTONG 4/4 HARDWOOD
Common Name(s): Jelutong
Scientific Name: Dyera costulata
Distribution: Malaysia, Borneo, and various regions in southeast Asia
Tree Size: 100-200 ft (30-60 m) tall, 5-6 ft (1.5-1.8 m) trunk diameter
Average Dried Weight: 28 lbs/ft3 (450 kg/m3)
Specific Gravity (Basic, 12% MC): .36, .45
Janka Hardness: 390 lbf (1,740 N)
Modulus of Rupture: 8,030 lbf/in2 (55.4 MPa)
Elastic Modulus: 1,224,000 lbf/in2 (8.44 GPa)
Crushing Strength: 4,250 lbf/in2 (29.3 MPa)
Shrinkage: Radial: 2.3%, Tangential: 5.5%, Volumetric: 6.2%, T/R Ratio: 2.4
Description
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