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Ditta 5
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 4
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Ditta 1
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PaldaoPaldao
Paldao (Dracontomelum dao)

Family:

Common names: Dao, Paldao

Distributed in: China, India, Indonesia, Malaysia, Papua New Guinea, Philippines, Vietnam (Oceania and S.E. Asia)

Distribution overview: Widely distributed on most islands and provinces in the Philippines, from northern Luzon to Mindanao and Palawan. Occurs throughout the lowlands and near rivers in Malaysia.

Common uses: Beams, Bedroom suites, Bent Parts, Building construction, Building materials, Cabin construction, Cabinetmaking, Chairs, Chests, Concrete formwork, Construction, Decks, Desks, Dining-room furniture, Domestic flooring, Drawer sides, Drum sticks, Excelsior, Exterior trim & siding, Exterior uses, Factory construction, Factory flooring, Fine furniture, Flooring, Form work, Foundation posts, Framing, Furniture components, Furniture squares or stock, Hatracks, Heavy construction, Interior construction, Interior trim, Joinery, Joists, Kitchen cabinets, Light construction, Living-room suites, Moldings, Musical instruments , Office furniture

Product sources: The tree is rarely harvested for timber because most of it is made up of sapwood (about 30 to 45 percent). Large buttresses also require the construction of a special platform to fell the tree. The large buttresses are believed to harbor evil spirits, and local woodsmen are reluctant to touch the tree.

Environment profile: Status unknown due to inadequate information

Tree size: Bole length is 0-10 m It is reported to develop buttresses that may be up to about 27 feet (8 m) high

Colors: the heart isTan, Yellowand the sapwoodWide, Yellow.The grain isStriped figure, the textureMediumand the lusterMedium

Natural durability: Perishable, Susceptible to insect attack

Odor: No specific smell or taste

Drying Defects: Rapid drying may cause checking, Thinner stock may warp

Ease of Drying: Special care required to prevent defects

Comments: Timber from the buttress of the tree is used to create decorative table tops in the Philippines

Blunting Effect: Medium dulling effect on cutting edges

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Moderate blunting of saw teeth

Gluing: Satisfactory gluing properties

Mortising: Responds well to hand and machine tools in mortising

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Good nailing characteristics, Very Good to Excellent

Planing: Fairly Easy to Very Easy

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Responds Readily

Routing recessing: Fairly Easy to Very Easy

Sanding: Fairly Easy to Very Easy

Steam bending: Unsuitable

Screwing: Good screwing properties, Very Good to Excellent Results; Turning: Very Good to Excellent Results

Polishing: Polishes to a high finish; Staining: Very good staining properties;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,5 0,66
Density 721 kg/m3
Bending Strength 728 1009 kg/cm2
Crushing Strength 54 86 kg/cm2
Hardness 501 kg
Impact Strength cm
Shearing Strength 104 kg/cm2
Stiffness 92 125 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 4 %
Weight 705 576 kg/m3
Maximum Load cm-kg/cm3
Toughness 344 cm-kg
Static Bending 438 717 kg/cm2
Item Green Dry English
Bending Strength 10356 14357 psi
Crushing Strength 780 1225 psi
Density 45 lbs/ft3
Hardness 1105 lbs
Maximum Crushing Strength 4516 7056 psi
Shearing Strength 1492 psi
Static Bending 6231 10203 psi
Stiffness 1318 1784 1000 psi
Toughness 299 inch-lbs
Specific Gravity 0.5 0.66
Weight 44 36. lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 7 %


Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.HMSO.1972.Handbook of Hardwoods, 2nd Edition.Revised by R.H. Farmer.Department of the Environment, Building Research Establishment, Princes Risborough Laboratory, Her Majesty's Stationery Office, London.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,1Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc., Fresno, California.Reyes, L.J. 1938. Philippine Woods. Department of Agriculture and Commerce, Technical Bulletin 7, Commonwealth of the Philippines, Bureau of Printing, Manila.WCMC.1992.Conservation Status Listing - Trees and Timbers of the World.World Conservation Monitoring Center - Plants Programme, Cambridge, CB3 ODL, United Kingdom.
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