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Resak
Resak (Vatica rassak)

Family: Fagaceae

Common names: Chan thip, Lan tan, Lau tau, Mascal wood, Mascalwood, Narig, Resak, Taungsagaing

Distributed in: Cambodia, India, Indonesia, Malaysia, Myanmar, Papua New Guinea, Philippines, Thailand (Oceania and S.E. Asia)

Distribution overview: Several species in the Vatica genus are reported to occur in the Malay Peninsula and the Philippines. In the Philippines, the species are distributed in the primary forests at low to medium elevations.

Common uses: Bedroom suites, Boat building, Building construction, Building materials, Cabin construction, Cabinetmaking, Canoes, Construction, Crossties, Domestic flooring, Drawer sides, Excelsior, Factory construction, Factory flooring, Flooring, Furniture , Heavy construction, Joinery, Kitchen cabinets, Lifeboats, Living-room suites, Mine timbers, Office furniture, Parquet flooring, Radio - stereo - TV cabinets, Railroad ties, Shipbuilding, Sub-flooring, Turnery

Product sources: Although the generic vernacular name of Vatica is Resak, the name has been used to refer to other species. Vatica timbers are very similar in characteristcs to those of Cotylelobium, and they are usually combined and marketed together under the trade name, Resak.

Environment profile: Generally secure within its natural habitat

Tree size: Trunk diameter is 150-200 cm

Colors: the heart isYellow, Yellowish brownand the sapwoodWhite, Yellow.The grain isStraight, the textureUniformand the lusterNon-lustrous

Natural durability: Susceptible to insect attack, Very durable

Odor: No specific smell or taste

Silica Content: Contains silica

Kiln Schedules: US Kiln-drying schedule Table 501, Schedule Code (14-15) has been recommended for 4/4 stock

Kiln Drying Rate: Rapid

Drying Defects: End-splitting , Splitting

Ease of Drying: High tangential shrinkage can result from lack of care during drying.

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Moderate to saw

Gluing: Fairly Easy to Very Easy

Mortising: Fairly Easy to Very Easy

Moulding: Very Good to Excellent

Movement in Service: Very Good to Excellent

Nailing: Reported to be hard and dense , Very Good to Excellent

Planing: Very Good to Excellent

Resistance to Impregnation: Sapwood is resistant

Response to hand tools: Fairly Difficult to Difficult to Work

Routing recessing: Fairly Easy to Very Easy

Sanding: Fairly Easy to Very Easy

Steam bending: Fairly Easy to Very Easy

Screwing: Fairly Easy to Very Easy, Very Good to Excellent Results; Turning: Fairly Easy to Very Easy

Painting: Fair to Good; Polishing: Good; Varnishing: Fairly Easy to Very Easy;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density kg/m3
Bending Strength 859 1338 kg/cm2
Crushing Strength 429 709 kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength 166 kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 12221 19041 psi
Maximum Crushing Strength 6110 10089 psi
Shearing Strength 2372 psi
Stiffness 2018 2317 1000 psi

Compression strength (parallel to grain) = high
Bending strength (MOR) = very high

Boone, R.S., C.J. Kozlik, P.J. Bois, and E.M. Wengert. 1988.Dry Kiln Schedules for Commercial Woods - Temperate and Tropical.United States Department of Agriculture, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, Wisconsin.Desch, H. E. 1957. Manual of Malayan Timbers - Volume I. Malayan Forest Records, No. 15. Malaysia Publishing House Ltd., Singapore.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,1Reyes, 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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