Properties and Uses

 

Nyatoh nangka/NYATOH

The timber is a light hardwood with a density of 400-1075 kg/m3 air dry. The sapwood is lighter in colour than and is only moderately sharply differentiated from the heartwood, which is deep pink-red or red-brown. Texture is moderately fine to sightly coarse,with straight to shallowly interlocked and sometime wavy grain. The timber ranges from moderately strong to strong, depending on the density of the material (Strenght groups B and C for most species but Strenght group A for Palaquium impressinervium). Wood working properties of the timber vary with most of the lighter species being easy to saw and work, producing surfaces that are smooth or rarely rough in the radial direction as in Palaquium maingayi. The heavier species, like P.impressinervium, are very difficult to saw, cross-cut and work while the planed surface is only moderately smooth. Nailing property ranges from good to excellent. For the lighter species of nyatoh, the recommended kiln schedule is E and 25 mm material takes approximately 11 days to kiln-dry. Havier species should be dried using Schedule D or C. The timber is moderately durable to non-durable and is rated as difficult to treat.