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Balobo
Balobo (Diplodiscus paniculatus)

Family: Tiliaceae

Common names: Api, Bagobo, Balobo, Balogo, Balugo, Balugug, Balungai, Barbo, Barobo, Barolo, Baroto, Baruba, Barubu, Basobo, Bauaobo, Bolato, Bolo, Bukao, Buru, Burusang, Dupdupan, Kideng, Malimbato, Malobo, Manaring, Mangalre, Maobo, Maramani, Marbo, Margapale, Marobo, Mayobo, Pangol-lokilloten, Talu-talu, Tapgam

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

Distribution overview: Widely distributed and common at low to medium elevations in the primary and secondary forests of the Philippines.

Common uses: Agricultural implements, Heavy construction, Light construction, Poles, Posts

Environment profile: Vulnerable in parts of its natural habitat

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isRed, Yellowand the sapwoodNot clearly differentiated from the heartwood, Tan.The grain isStraight, the textureMediumand the lusterLustrous

Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to attack from termites (Isoptera)

Odor: No specific smell or taste

Silica Content: Siliceous

Drying Defects: May warp, Resin Exudation

Ease of Drying: Thick Stock Requires Care

Blunting Effect: Moderate

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Gluing: Fairly Difficult to Very Difficult

Mortising: Fairly Easy to Very Easy

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Satisfactory nailing properties, Very Good to Excellent

Planing: good

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Easy to machine

Routing recessing: Fairly Easy to Very Easy

Sanding: Fairly Easy to Very Easy

Steam bending: Poor to Very Poor Results

Turning: Fairly Easy to Very Easy

Painting: Fairly Difficult to Very Difficult ; Polishing: Fairly Difficult to Very Difficult ; Staining: Satisfactory staining properties; Varnishing: Fairly Difficult to Very Difficult ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,6 0,62
Density 769 kg/m3
Bending Strength 811 1283 kg/cm2
Crushing Strength 78 118 kg/cm2
Hardness 728 kg
Impact Strength cm
Shearing Strength 113 kg/cm2
Stiffness 117 146 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness 415 cm-kg
Static Bending 481 804 kg/cm2
Item Green Dry English
Bending Strength 11541 18251 psi
Crushing Strength 1110 1687 psi
Density 48 lbs/ft3
Hardness 1607 lbs
Maximum Crushing Strength 5129 8014 psi
Shearing Strength 1617 psi
Static Bending 6843 11443 psi
Stiffness 1673 2077 1000 psi
Toughness 361 inch-lbs
Specific Gravity 0.6 0.62
Weight 47 39. lbs/ft3

Resists denting and marring
Max. crushing strength = high
Heavy
Crushing strength = 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. Compression strength parallel to grain in the air-dry condition is high. Teak, White oak, and Hard maple have high crushing strength. It is moderately hard and resistant to wearing and marring. It is a very heavy wood. The wood is high in density.

Lauricio, F. M., Bellosillo, S. B., The Mechanical and Related Properties of Philippine Woods, The Lumberman, 12(5): A-H.Reyes, L.J. 1938. Philippine Woods. Department of Agriculture and Commerce, Technical Bulletin 7, Commonwealth of the Philippines, Bureau of Printing, Manila.Reyes, L.J.,1938,Philippine Woods,Commonwealth of the Philippines Department of Agriculture and Commerce,Technical Bulletin,No.7
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