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PalosapisPalosapis
Palosapis (Anisoptera laevis)

Family: Dipterocarpaceae

Common names: Kaunghmu, Mersawa, Palosapis, Phdiek, Ven ven

Distributed in: BruneiIndonesiaMalaysiaPakistanPhilippines (Oceania and S.E. Asia)

Distribution overview: Brunei, Indonesia (Sumatra), Malaysia (Sabah, Sarawak), Singapore.A timber tree which is widespread and recorded in a number of proposed reserve sites

Common uses: Beams, Boat building, Building construction, Cabin construction, Canoes, Chairs, Chests, Concealed parts (Furniture), Concrete formwork, Construction, Core Stock, Decks, Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Factory construction, Factory flooring, Figured veneer, Fine furniture, Floor lamps, Flooring, Form work, Foundation posts, Framing, Furniture , Furniture components, Furniture squares or stock, Hatracks, Heavy construction, Joinery, Joists, Kitchen cabinets, Lifeboats, Light construction, Plywood, Veneer

Environment profile: Secure in many areas of its range

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellowish tanand the sapwoodNot clearly differentiated from the heartwood, Yellow.The grain isInterlocked, the textureUniformand the lusterNot lustrous

Natural durability: Moderate weathering properties , Susceptible to attack by the powder-post beetle

Odor: No specific taste

Silica Content: Siliceous

Kiln Schedules: T6-D4(4/4);T3-D1(8/4) US Schedule E; United Kingdom

Drying Defects: Distortion, Slight distortion may occur during drying

Ease of Drying: Thick Stock Requires Care

Comments: Retards the setting of cement and should not be used for shuttering concrete

Blunting Effect: Severe blunting effect on cutting edges because of interlocked grain and silica content

Cutting Resistance: Specially tipped cutters are usually required to process the wood

Gluing: Good gluing properties

Mortising: Interlocked grain effects mortising

Moulding: Interlocked grain and silica may affect moulding properties

Movement in Service: Interlocked grain and silica may affect moulding properties

Nailing: Fair to Good , Fairly Easy to Very Easy

Planing: Very sharp cutting edges are required for smooth surfaces

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Interlocked grain may affect machining the wood with hand tools

Steam bending: Very poor steam bending characteristics

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

Polishing: Satisfactory polishing characteristics ; Staining: Stains satisfactorily after surface preparation ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,42 0,44
Density 624 kg/m3
Bending Strength 618 1088 kg/cm2
Crushing Strength 40 63 kg/cm2
Hardness 375 kg
Impact Strength 63 cm
Shearing Strength 74 kg/cm2
Stiffness 113 135 1000 kg/cm2
Tangential Shrinkage 9 %
Radial Shrinkage 4 %
Weight 1025 608 kg/m3
Maximum Load 0,42 cm-kg/cm3
Toughness cm-kg
Static Bending 381 595 kg/cm2
Item Green Dry English
Bending Strength 8800 15484 psi
Crushing Strength 578 897. psi
Density 39 lbs/ft3
Hardness 828 lbs
Impact Strength 25 inches
Maximum Crushing Strength 4675 7654 psi
Shearing Strength 1058 psi
Static Bending 5429 8464. psi
Stiffness 1617 1931 1000 psi
Work to Maximum Load 6 inch-lbs/in3
Specific Gravity 0.42 0.44
Weight 64 38 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 9 %
Volumetric Shrinkage 11 %

Resists wearing and marring
Resists denting and marring
High in density
Heavy
Fairly hard
Compression strength (parallel to grain) = high
Bending strength (MOR) = very high
The bending strength qualities of this species in the air-dry condition is very high, far superior to those of Mahogany. Strength in compression parallel to grain is in the high range. Other species in this range include Teak, White oak, and Hard maple

Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Desch, H. E. 1957. Manual of Malayan Timbers - Volume I. Malayan Forest Records, No. 15. Malaya Publishing House Ltd., Singapore.Desch, H. E. 1957. Manual of Malayan Timbers. Malayan Forest Records, 28(30):315-318.HMSO. 1981. Handbook of Hardwoods, 2nd Edition. revised by R.H. Farmer. Department of the Environment, Building Research Establishment, Princes Risborough Laboratory, Princes Risborough, Aylesbury, Buckinghamshire.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc., Fresno, California.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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