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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 Common Names Common Uses Countries of Distribution Cutting Resistance Distribution Overview Drying Defects Ease of Drying Environmental Profile Family Name Grain Heartwood Color Kiln Drying Rate Kiln Schedules Nailing Natural Durability Numerical Data Odor Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Sapwood Color Scientific Name Steam Bending Texture Toxicity Trade Name Tree Size Turning Scientific Name Dillenia luzoniensis Trade Name Simpoh Family Name Dilleniaceae Common Names Dillenia, Katmon, Malakatmon, San, Simpoh, Simpur Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Philippines Common Uses Chairs, Chests, Concealed parts (Furniture), Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Factory flooring, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Hatracks, Kitchen cabinets, Living-room suites, Office furniture, Parquet flooring, Radio - stereo - TV cabinets, Rustic furniture, Stools, Sub-flooring, Tables , Utility furniture, Wardrobes Environmental Profile Extinct, Endangered, Vulnerable, or Rare within its range Data source is World Conservation Monitoring Center Distribution Overview Found in the Indo-Malayan region, this species is widely distributed at low and medium elevations on the Luzon Island, and on the Palawan Island in the Philippines. Heartwood Color Black Brown Reddish brown Purplish Deposits in vessels may appear as white lines on the surface Darkens with age Sapwood Color Paler than heartwood Not clearly differentiated from the heartwood Grain Interlocked Even Twisted Seldom straight, possibly interlocked Interlocked Quartersawn surfaces may yield and attractive silver figure Texture Fine Medium coarse to coarse Even textured Natural Durability Susceptible to insect attack Durable Very durable Resistant to termites Non-resistant to powder post beetles Non-resistant to marine borers Resistant to powder post beetles Very little natural resistance Sapwood susceptible to attack by powder post beetles Odor No specific smell or taste Toxicity Some toxic effects Kiln Schedules T3 - C2 (4/4) US/T3 - C2 (4/4) U Drying Defects Splitting Quartersawn material less prone to degrade Material may warp and end-check during seasoning Ease of Drying Fairly Easy Rapidly Specific information on drying difficulty is not available Quartersawn material dries with little degrade Radial - 2.2% Shrinkage for Dillenia spp.(Green to Air-dry): Tangential - 3.9% Kiln Drying Rate Naturally dries quickly Tree Size Tree height is 10-20 m Tree height is 20-30 m Trunk diameter is 100-150 cm Stilt roots often present Blunting Effect High to severe Boring Fairly good results Cutting Resistance Sawn timber may spring immediately after sawing Fine dust may clog saw teeth Fairly easy to saw Nailing Fairly Easy to Very Easy Nails hold poorly Planing Fairly Difficult to Very Difficult Planing yields smooth surfaces Resistance to Impregnation Resistant heartwood Resistant sapwood Heartwood is permeable The heartwood responds fairly well to preservative treatment. Absorptions of 6 to 10 pcf of preservative oil have been reported Response to Hand Tools Fairly Difficult to Difficult to Work Easy to Work Turning Good results Steam Bending Fair to Good Results Polishing Fair to Good Results Numerical Data Item Green Dry English Bending Strength 10935 15192 psi Crushing Strength 1512 1924 psi Density 35 lbs/ft3 Hardness 2109 lbs Maximum Crushing Strength 5170 8781 psi Shearing Strength 2215 psi Static Bending 6258 8558 psi Stiffness 1644 1729 1000 psi Toughness 283 inch-lbs Specific Gravity 0.63 0.65 Weight 34 28. lbs/ft3 Item Green Dry Metric Bending Strength 768 1068 kg/cm2 Crushing Strength 106 135 kg/cm2 Density 560 kg/m3 Hardness 956 kg Maximum Crushing Strength 363 617 kg/cm2 Shearing Strength 155 kg/cm2 Static Bending 439 601 kg/cm2 Stiffness 115 121 1000 kg/cm2 Toughness 326 cm-kg Specific Gravity 0.63 0.65 References Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison. EcoTimber International, Personal Communication, 1993. Keating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1 Lauricio, F. M., Bellosillo, S. B., The Mechanical and Related Properties of Philippine Woods, The Philippine Lumber Journal, 12(5):A-H Reyes, L.J. 1938. Philippine Woods. Department of Agriculture and Commerce, Technical Bulletin 7, Commonwealth of the Philippines, Bureau of Printing, Manila.