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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. Common Names Common Uses Ease of Drying Family Name Grain Heartwood Color Kiln Schedules Luster Natural Durability Numerical Data References Regions of Distribution Response to Hand Tools Sapwood Color Scientific Name Strength Properties Synonyms Texture Toxicity Trade Name Tree Identification Tree Size Turning Scientific Name Mallotus muticus Trade Name Kerupok paya Family Name Euphorbiaceae Synonyms Coccoceras borneense, Coccoceras muticum, Mallotus borneensis Common Names Kerupok paya, Ki mejong, Perupok, Selung apid, Serapoh, Singin, Tuka tuka Regions of Distribution Oceania and S.E. Asia Common Uses Matches, Pulp/Paper products, Turnery Heartwood Color Black Brown Sapwood Color White Yellow Grain Even Straight Straight Texture Medium Fine Coarse Medium Fine Fine to medium Coarse Luster Medium Natural Durability Very durable Durable Sapwood is susceptible to wood staining fungal attack Susceptible to marine borer attack Resistant to attack from termites (Isoptera) Pinworms (ambrosia beetles) are commonly present Non durable Heartwood is susceptible to wood staining fungal attack Toxicity Some toxic effects Kiln Schedules Drying (speed) is fast Ease of Drying Easy Tree Identification Bole/stem form is buttressed Tree Size Trunk diameter is 100-150 cm Tree height is 20-30 m Tree height is 30-40 m Bole length is 10-20 m Trunk diameter is 150-200 cm Response to Hand Tools Fairly Difficult to Difficult to Work Easy to Work Easy to machine Turning Easy to turn Strength Properties Density (dry weight) = 31-37 lbs/cu. ft. Density (dry weight) = 23-30 lbs/cu. ft. Numerical Data Item Green Dry English Density 28 lbs/ft3 Weight 27 24 lbs/ft3 Item Green Dry Metric Density 448 kg/m3 References 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