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Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Family Name Gluing Grain Heartwood Color Moulding Nailing Natural Durability Numerical Data Painting Planing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Sapwood Color Scientific Name Strength Properties Texture Trade Name Tree Identification Tree Size Varnishing Veneering Qualities		Scientific Name Macaranga kilimandsharica Trade Name Dundu Family Name Euphorbiaceae Common Names Dundu, Ehaaw, Erwa, Kaptebema, Kiarawe, Kibgetoyoa, Legumeta, Logomaita, Luwessu, Mbawa, Mfirifiriwa kyagga, Mhaha, Mkumba, Mpalala, Mudwess, Muhaa, Muhaha murah, Muhoti, Muhunga, Mukaho, Mukarariki, Mukuhakula, Musebe, Muwebe, Omubarshasha, Omuburashasha, Omurara, Omusasa, Omushusha, Sebe sebet Regions of Distribution Africa Countries of Distribution  [VIEW MAP] Kenya, Tanzania, Uganda Common Uses Agricultural implements, Boxes and crates, Cabinetmaking, Fuelwood, Furniture, Joinery, Light construction, Matches, Particleboard, Piling, Plywood corestock, Pulp/Paper products Heartwood Color Brown Yellow Red Orange Pale red to pink Red Pale brown Sapwood Color Red Yellow White to yellow Well defined Grain Straight Closed Even Wavy Straight Wavy Texture Medium Medium Natural Durability Perishable Non-durable Resistant to termites Moderately durable Non-resistant to powder post beetles Non-resistant to marine borers Susceptible to insect attack Perishable Non durable Heartwood is susceptible to wood staining fungal attack Susceptible to marine borer attack Susceptible to attack from termites (Isoptera) Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Drying Defects Checking Distortion Moderate end spitting Tree Identification Bole/stem form is straight Bole/stem form is fluted Tree Size Tree height is 10-20 m Cutting Resistance Cutting Resistance with green wood is difficult Gluing Easy to glue Moulding Good finishing results Nailing Pre-Boring Recommended Holds nails well Easy to nail Planing Fair to Good Results Planes well, to a good finish Resistance to Impregnation Sapwood is permeable Heartwood is permeable Response to Hand Tools Fairly Difficult to Difficult to Work Easy to Work Veneering Qualities Suitable for peeling Veneers easily Suitable for slicing Veneers moderately easy Good gluing qualities There is slight to moderate drying degrade and the potential for buckles and splits No steaming needed during bolt preparation. Painting Very Good to Excellent Results Fair to Good Results Varnishing Very Good to Excellent Results Fair to Good Results Fairly Easy to Very Easy Strength Properties Density (dry weight) = 31-37 lbs/cu. ft. Density (dry weight) = 23-30 lbs/cu. ft. Bending strength (MOR) = low Max. crushing strength = medium Shrinkage, Radial = small Modulus of Elasticity (stiffness) = very low Modulus of Elasticity (stiffness) = medium Shrinkage, Tangential = small Shrinkage, Tangential = moderate Shrinkage, Tangential = fairly large Shearing strength (parallel to grain) = very low Shearing strength (parallel to grain) = low Hardness (side grain) = very soft Hardness (side grain) = soft Numerical Data Item Green Dry English Bending Strength 6111 9589 psi Density 29 lbs/ft3 Hardness 898 lbs Maximum Crushing Strength 3916 6397 psi Shearing Strength 1221 psi Stiffness 1341 1560 1000 psi Weight 28 25 lbs/ft3 Radial Shrinkage 3 % Tangential Shrinkage 7 % Item Green Dry Metric Bending Strength 429 674 kg/cm2 Density 464 kg/m3 Hardness 407 kg Maximum Crushing Strength 275 449 kg/cm2 Shearing Strength 85 kg/cm2 Stiffness 94 109 1000 kg/cm2 Weight 448 400 kg/m3 Radial Shrinkage 3 % References Bois, P.J.,1966,The Strength Properties of Tanzania Timbers,Tanzania Forest Div. Util. Sec. Moshi Tech. Note, No.35 Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research Dale, I.R., Greenway, P.J.,1961,Kenya Trees and Shrubs,Buchanans Kenya Estates Ltd. Nairobi Hatchards London Eggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe Uganda France - C.T.F.T./C.T.B.,1982,Guide pour le Choix des Essences Deroulables-pour la fabrication du,contreplaque,C.T.F.T./C.T.B. France Kenya Forest Department,1941,Strengths of Kenya timbers,Kenya Forest Department Bulletin No. 36 Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi. Pardy, A.A.,1954,Notes on Indigenous Trees and Shrubs in Southern Rhodesia - Sterculia,quinqueloba,Ministry of Agriculture and Lands S.Rhodesia Bulletin No. 1764 Patterson, D.N.,1963,The strength of Kenya timbers, their derivation and application,Kenya Forestry Department Research Bulletin,No.23 Tack, C.H.,1958,The Strength Properties of some Uganda Timbers,Uganda Forest Department Bulletin No. 5 Tack, C.H.,1969,Uganda Timbers,Govt. Printer Uganda Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7 Tanzania Forest Department,1960,The Natural Durability of Local Timbers,Tanzanian Forest Dept. Tech. Note,No.14 Uganda Forest Department,1954,The Mechanical Properties of some Ugandan Timbers,Uganda Forest Department Timber Leaflet,No.1 Wimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya