Resak   PHYSICAL PROPERTIES Density : 655-1,155 kg/m³ Shrinkage i) Radial : 1.5% ii) Tangential : 3.4% Static Bending i) Modulus of elasticity : 14,400-18,100 N/mm² ii) Modulus of rupture : 81-105 N/mm² Compression Strength i) Perpendicular to Grain : 4.90-11.45 N/mm² ii) Parallel to Grain : 41.70-60.90 N/mm² Shear strength : 9.3-12.60 N/mm²

Botanical Name : Vatica spp. and Cotylelobium spp. Family : Dipterocarpaceae Other names :   Distribution : Generally occurs sporadically throughout the well drained lowland dipterocarp forests near rivers and hills. Sapwood : Light coloured and sharply defined in Cotylelobium but not generally so in Vatica. Grain : Straight or slightly interlocked. Texture : Fine and even. Working Properties : Planning Easy to slightly difficult Finish Smooth Boring Easy Finish Smooth Turning Slightly difficult Finish Moderately Smooth Nailing n.a Uses : Suitable for heavy construction, beams, posts, piling, bridges, mining timber, heavy duty flooring, boat construction, transmission poss, door and window frames and railway sleepers. The lighter varieties are suitable for turnery, cabinet works, high grade joinery, interior fittings and sliced veneer.