Apong-apong (Kleinhovia hospita)
Family: Sterculiaceae
Common names: Apong-apong, Apung-apung, Balansi, Bantanan, Bignon, Biknong, Biluan, Binong, Binunga, Bitanag, Bitang, Bitanog, Bitnog, Bitnon, Bitnong, Butnong, Hamitanago, Kayu puteh, Kleinhovia, Lapnis, Malakapas, Malibago, Malubago, Pampar, Panaitteku, Panampat, Punong, Taloktok, Tamanag, Tan-ag, The kleinhovia, Timahar, Timanag, Tonog, Tra, Unapong
Distributed in: India, Malaysia, Philippines, Vanuatu (Africa, Oceania and S.E. Asia)
Common uses: Flooring: industrial heavy traffic, Food containers, Handles: general
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isWhite, Yellowand the sapwoodWhite, Yellow.The grain isStraight, the textureMediumand the lusterMedium
Natural durability: Susceptible to attack from termites (Isoptera), Very durable
Ease of Drying: Easy
Tree Identification: Bole/stem form is misshapen
Comments: General finishing qualities are rated as good
Response to hand tools: Fairly Difficult to Difficult to Work
Polishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
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Density |
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512 |
kg/m3 |
Bending Strength |
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kg/cm2 |
Crushing Strength |
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kg/cm2 |
Hardness |
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kg |
Impact Strength |
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cm |
Shearing Strength |
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kg/cm2 |
Stiffness |
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1000 kg/cm2 |
Tangential Shrinkage |
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% |
Radial Shrinkage |
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% |
Weight |
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kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
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cm-kg |
Static Bending |
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kg/cm2 |
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 |  |  |  | Item | Green | Dry | English | Density | | 32 | lbs/ft3 | Weight | 31 | 25 | lbs/ft3 | |
Density (dry weight) = 31-37 lbs/cu. ft.
Bolza, E.,1975,Properties and Uses of 175 Timber Species from Papua New Guinea and West,Irian,C.S.I.R.O. Div. Building Research Report,no.34Burgess, P.F.,1966,Timbers of Sabah,Sabah Forest Record, no.6McCann, C.,1947,Trees of India: A Popular Handbook,D.B.Taraporevala Sons & Co. BombayReyes, L.J.,1938,Philippine Woods,Commonwealth of the Philippines Department of Agriculture and Commerce,Technical Bulletin,No.7Whitmore, T.C.,1973,Tree Flora of Malaya A Manual for Foresters Volume 2,Forest Department Ministry of Primary Industries Malaysia
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