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Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. Blunting Effect Boring Carving Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Ease of Drying Environmental Profile Family Name Gluing Grain Heartwood Color Kiln Drying Rate Kiln Schedules Luster Mortising Moulding Movement in Service Nailing Natural Durability Numerical Data Painting Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Routing & Recessing Sanding Sapwood Color Scientific Name Screwing Staining Steam Bending Strength Properties Texture Trade Name Tree Size Turning Varnishing Veneering Qualities Scientific Name Vatica heteroptera Trade Name Resak Family Name Dipterocarpaceae Common Names Resak, Resak gunong Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Malaysia Common Uses Heavy construction, Light construction Environmental Profile Vulnerable Heartwood Color Brown Red White Pink Purple Green/grey Reddish brown Sapwood Color Red Brown White Paler than heartwood Grain Even Figure Interlocked Straight Distinct (figure) Straight Interlocked Distinct figure Texture Medium Coarse Fine Fine Luster Medium Low Natural Durability Non-durable Susceptible to insect attack Perishable Non-resistant to powder post beetles Non-resistant to termites Non-resistant to marine borers Resistant to attack from pinworms (ambrosia beetles) Durable Kiln Schedules Dry at a slow speed Drying Defects Splitting Collapse Internal Honeycombing Possible Checking Distortion Ease of Drying Fairly Easy Moderately Difficult to Difficult Slowly Rapidly Thick Stock Requires Care Little degrade Kiln Drying Rate Rapid Slow Naturally dries quickly Drying rate is fairly rapid to fast Drying rate is slow Tree Size Bole length is 10-20 m Tree height is 40-50 m Bole length is 20-30 m Trunk diameter is 100-150 cm Trunk diameter is 150-200 cm Tree height is 20-30 m Tree height is 30-40 m Tree height is 10-20 m Bark width is 0-5 mm Sapwood width is 0-5 cm Blunting Effect Little Boring Fairly easy to very easy Easy Carving Fairly Easy to Very Easy Cutting Resistance Easy to saw Cutting Resistance with dry wood is difficult Gluing Fairly Easy to Very Easy Fair to Good Results Mortising Fairly Easy to Very Easy Fair to Good Results Moulding Fairly Easy to Very Easy Fair to Good Results Movement in Service Fair to Good Stability - Medium Movement Nailing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Planing Fairly Easy to Very Easy Fair to Good Results Poor to Very Poor Results Fairly Difficult to Very Difficult Very Good to Excellent Results Planes well, to a good finish Resistance to Impregnation Permeable heartwood Permeable sapwood Response to Hand Tools Easy to Work Responds Readily Easy to machine Routing & Recessing Fairly Easy to Very Easy Sanding Fair to Good Results Fairly Easy to Very Easy Very Good to Excellent Results Screwing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Turning Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Veneering Qualities Suitable for peeling Veneers easily Suitable for slicing Veneers moderately easy Steam Bending Unsuitable Tends to Degrade Poor to Very Poor Results Painting Fair to Good Results Polishing Fair to Good Results Very Good to Excellent Results Satisfactory results Staining Fair to Good Results Very Good to Excellent Results Varnishing Fair to Good Results Fairly Easy to Very Easy Very Good to Excellent Results Strength Properties Density (dry weight) = 61-67 lbs/cu.ft Density (dry weight) = 53-60 lbs/cu. ft Density (dry weight) = 46-52 lbs/cu. ft. Density (dry weight) = 38-45 lbs/cu. ft. Numerical Data Item Green Dry English Density 51 lbs/ft3 Weight 50 40 lbs/ft3 Item Green Dry Metric Density 817 kg/m3 References Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison. Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15 Fundter, J.M.,1982,Names for Dipterocarp timbers and trees from Asia,Pudoc, Wageningen, Netherlands Symington, C.F.,1943,Foresters manual of Dipterocarps,Malaysia Forest Record,No.16