Melagangai


INTRODUCTION

The Standard Malaysian Name for the timber of Potoxylon melagangai (syn.: Eusideroxylon melagangai; Lauraceae). Vernacular names applied include belian kapok (Sarawak), belian kebuau (Sarawak) and belian malagangai (Sarawak). The sapwood is yellowish when fresh and sharply differentiated from the heartwood, which is brown with a distinct reddish tinge.

Also known as Malagangai (Brunei).


DENSITY

The timber is moderately hard and strong with a density of 525-920 kg/m3 air dry. The timber is classified under Heavy Hardwood in Malaysia.


NATURAL DURABILITY

The timber is very durable.


PRESERVATIVE TREATMENT

It is difficult to treat with preservatives.


TEXTURE

Texture is moderately fine and even, with fairly straight grain.


STRENGTH PROPERTIES

The timber falls into Strength Group A (Burgess, 1958).


MACHINING PROPERTIES

The timber is reported to saw easily.


AIR DRYING

The timber seasons fairly easily.


SHRINKAGE

Shrinkage is high. Radial shrinkage averages 2.4% while tangential shrinkage averages 4.4%.


USES

The timber is used for heavy construction, railway sleepers, mallets, boat building, posts, paddles, fences, pepper posts and shingles.


REFERENCES

  1. Burgess, H. J. 1958. Strength Grouping of Malaysian Timbers. Malayan Forest Service Trade Leaflet No. 25. The Malaysian Timber Industry Board and Forest Research Institute Malaysia, Kuala Lumpur. 15 pp.
  2. Menon, P. K. B. 1986. Uses of Some Malaysian Timbers. Revised by Lim, S. C. Timber Trade Leaflet No. 31. The Malaysian Timber Industry Board and Forest Research Institute Malaysia, Kuala Lumpur. 48 pp.
  3. Wong, T. M. 1982. A Dictionary of Malaysian Timbers. Revised by Lim, S. C. & Chung, R. C. K. Malayan Forest Records No. 30. Forest Research Institute Malaysia, Kuala Lumpur. 201 pp.