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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 Comments Common Names Common Uses Countries of Distribution Cutting Resistance Distribution Overview Drying Defects Ease of Drying Family Name Gluing Grain Heartwood Color Kiln Schedules Luster Mortising Moulding Movement in Service Nailing Natural Durability Numerical Data 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 Identification Turning Veneering Qualities Scientific Name Swintonia floribunda Trade Name Am-barola Family Name Anacardiaceae Common Names Am-barola, Boilam, Boilsur, Chivit, Civit, Mengkasai, Merpauh, Pauh, Rengas, Shitle, Taungthayet, Thayet kan, Thayet kin, Thayet san, Thayet-kin-san, Thayetsan, Thayette, Thinbaung Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Burma, India, Malaysia, Thailand, Vietnam Common Uses Boat building (general), Boxes and crates, Canoes, Heavy construction, Light construction, Matches, Plywood, Pulp/Paper products, Toys, Veneer: decorative Distribution Overview Khaya ivorensis , K. anthotheca , K. grandifolia , and K. senegalensis are good substitues. Crabwood (Carapa guianensis) is similar in color and appearance, and also as tough. Sapele (Entandrophragma cylindricum) is superior in strength properties. Silky oak (Grevillea robusta) is also similar. Heartwood Color Brown Red Black Purple Greenish to greyish Yellow to golden-yellow to orange Pale brown Brown White to cream Red Purple Pale red to pink Sapwood Color Green/Grey Red Brown White to yellow Same as heartwood Paler than heartwood Grain Figure Distinct (figure) Straight Interlocked Even Stripe (figure) Straight Interlocked Distinct figure Striped figure Texture Fine Uniform Even or uniform Coarse Medium Medium to coarse Fine Fine to medium Luster Low Lustrous Pronounced Natural Durability Durable Moderately durable Non durable Susceptible to attack from termites (Isoptera) Resistant to attack from powder post (Lyctid & Bostrychid) beetles Moderately durable Kiln Schedules Drying (speed) is fast Drying Defects Distortion Checking No end splitting Slight twist/warp Slight surface checking Slight spring/bow Ease of Drying Slowly Thick Stock Requires Care Requires special attention Tree Identification Bole/stem form is buttressed Bole/stem form is fluted Comments General finishing qualities are rated as good Blunting Effect Moderate Blunting effect on machining is severe Boring Fairly easy to very easy Carving Fairly Easy to Very Easy Cutting Resistance Easy to saw Cutting Resistance with green wood is easy Cutting Resistance with dry wood is easy Gluing Fair to Good Results Mortising Fairly Easy to Very Easy Moulding Fairly Easy to Very Easy Movement in Service Fair to Good Stability - Medium Movement Nailing Pre-Boring Recommended Fair to Good Results Easy to nail Holds nails well Planing Fair to Good Results Fairly Easy to Very Easy Resistance to Impregnation Permeable sapwood Resistant heartwood Resistant sapwood Heartwood is moderately resistant Response to Hand Tools Responds Readily Easy to Work Easy to machine Routing & Recessing Fairly Easy to Very Easy Sanding Fair to Good Results Screwing Pre-boring recommended Fair to Good Results Turning Fairly Easy to Very Easy Veneering Qualities Suitable for slicing Steam Bending Fair to Good Results Polishing Fair to Good Results Staining Fair to Good Results Very Good to Excellent Results Strength Properties Modulus of Elasticity (stiffness) = low Hardness (side grain) = soft Bending strength (MOR) = low Density (dry weight) = 46-52 lbs/cu. ft. Density (dry weight) = 38-45 lbs/cu. ft. Toughness-Hammer drop (Impact Strength) = low Max. crushing strength = medium Max. crushing strength = low Shearing strength (parallel to grain) = very low Shrinkage, Tangential = small Shrinkage, Radial = small Numerical Data Item Green Dry English Bending Strength 6111 9589 psi Density 43 lbs/ft3 Hardness 995 lbs Impact Strength 28 inches Maximum Crushing Strength 3027 5157 psi Shearing Strength 882 psi Stiffness 1358 1568 1000 psi Weight 42 34 lbs/ft3 Radial Shrinkage 3 % Tangential Shrinkage 6 % Item Green Dry Metric Bending Strength 429 674 kg/cm2 Density 689 kg/m3 Hardness 451 kg Impact Strength 71 cm Maximum Crushing Strength 212 362 kg/cm2 Shearing Strength 62 kg/cm2 Stiffness 95 110 1000 kg/cm2 Weight 673 544 kg/m3 Radial Shrinkage 3 % References Anon,1963,Indian Woods: Their Identification, Properties and uses. Vol.II Linaceae,to Moringaceae,Manager of Publications, Delhi, India Burgess, P.F.,1966,Timbers of Sabah,Sabah Forest Record, no.6 Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15 Lee, Y.H., et al,1974,Commercial Timbers of Peninsular Malaysia,Kuala Lumpur Malaysia Department of Forestry Peninsular Malaysia and,Malaysian Timber Industry Board Lee, Y.H.,1965,Timber tests - merpauh (Swintonia spp.,Malayan Forester 28(1) pp56-62 Limaye, V.D.,1933,The Physical and Mechanical Properties of woods grown in India (Third,Interim Report on Project 1,Indian Forest Records,18(10,pp1-70 Menon, P.K.B.,1959,The wood anatomy of Malayan timbers: commercial timbers, 3. Light,hardwoods,Malaysian Forest Research Institute Kepong, Research Pamplet, No. 27. Ng, F.S.P. (Ed,1989,Tree Flora of Malaya A Manual for Foresters Volume 4,Forest Research Institute Malaysia Ministry of Primary Industries Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 vols Razzaque, M.A., Das, P.,1969,Pulping studies of civit (Swintonia floribunda) wood,Forest - Dale News (Bano Biggyan Patrika) 1(2) pp16-29 Tewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6