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MERBAU
Family: Leguminosae
Distribution:
Madagascar, Philippines, Malaysia and Indonesia.
General Description:
Clearly defined from the white-to-pale yellow heartwood, which matures into a medium-to-dark red-brown on exposure. The grain is interlocked and sometimes wavy, which produces a ribbon figure on quartered surfaces.
Color:
Yellowish to orange brown when first cut, but matures into brown or dark red-brown upon exposure.
Weight:
Average 800 kg/m 3 (50 lb/ft 3).
Specific Gravity:
.73.
Mechanical Properties:
Bending strength – Medium
Crushing strength – Medium
Resistance to shocl loads – Medium
Stiffness – Medium
Steam bending classification – Moderate
Seasoning:
Dries well and without much degrade, and low shrinkage; if hurried there is a tendency for end splitting and surface checking to occur. There is small movement in service.
Working properties:
The wood has a moderate blunting effect on cutters, and the gum tends to collect on saws. The grain may tear out on quartered material when planning or moulding unless a reduced cutting angle 20 degrees is used. The wood tends to split in nailing and pre-boring is necessary. It holds screws well and can be glued, stained and polished satisfactorily but requires considerable filling. The yellow deposits are water soluble and the dye has a lasting effect on textiles.
Durability:
Durable and resistant to preservative treatment.
Uses:
General and heavy constructional work
Flooring
Paneling
Agricultural implements
Axe and tool handles
Furniture making
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