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. Blunting Effect Boring Common Names Common Uses Countries of Distribution Drying Defects Family Name Grain Heartwood Color Kiln Drying Rate Kiln Schedules Luster Mortising Moulding Movement in Service Natural Durability Numerical Data Planing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Sapwood Color Scientific Name Strength Properties Texture Trade Name Tree Size Turning		Scientific Name Ceiba samauma Trade Name Lupuna Family Name Bombacaceae Common Names Lupuna, Samauma Regions of Distribution Latin America Countries of Distribution  [VIEW MAP] Brazil, Peru Common Uses Cooperages, Furniture, Joinery, Moldings, Particleboard, Plywood corestock, Plywood Heartwood Color White to cream Pale red to pink Pale brown Greenish to greyish Brown Sapwood Color Same as heartwood Grain Even Straight Figure Stripe (figure) Striped figure Straight Figure shows rays Texture Coarse Medium Medium to coarse Coarse Medium Luster Medium Low Dull Natural Durability Very durable Non durable Heartwood is susceptible to wood staining fungal attack Susceptible to attack from termites (Isoptera) Perishable Kiln Schedules Drying (speed) is fast Drying Defects Splitting Checking Severe surface checking Severe end splitting Kiln Drying Rate Slow Drying rate is slow Tree Size Trunk diameter is 200-250 cm Trunk diameter is 150-200 cm Trunk diameter is 100-150 cm Tree height is 20-30 m Tree height is 10-20 m Bole length is 10-20 m Blunting Effect Blunting effect on machining is slight Boring Fairly easy to very easy Mortising Fairly Easy to Very Easy Very Good to Excellent Results Fair to Good Results Moulding Fairly Easy to Very Easy Movement in Service Excellent Stability - Small Movement Stable Small Planing Fairly Easy to Very Easy Very Good to Excellent Results Fair to Good Results Resistance to Impregnation Sapwood is permeable Heartwood is permeable Response to Hand Tools Easy to Work Turning Fairly Easy to Very Easy Very Good to Excellent Results Fair to Good Results Strength Properties Density (dry weight) = 31-37 lbs/cu. ft. Density (dry weight) = 23-30 lbs/cu. ft. Shrinkage, Tangential = small Shrinkage, Radial = small Hardness (side grain) = very soft Hardness (side grain) = soft Density (dry weight) = 15-22 lbs/cu. ft. Numerical Data Item Green Dry English Density 27 lbs/ft3 Hardness 657 lbs Weight 26 23 lbs/ft3 Radial Shrinkage 3 % Tangential Shrinkage 6 % Item Green Dry Metric Density 432 kg/m3 Hardness 298 kg Weight 416 368 kg/m3 Radial Shrinkage 3 % References Brown, W.H.,1969,Properties and uses of Tropical hardwoods in the United Kingdom. Part 1,Nonstructural properties and uses.,Conference on Tropical hardwoods SC-5/TN-5, Syracuse University Kukachka, B.F.,1970,Properties of Imported Tropical Woods,Forest Research Paper FPL 125 T.T.I.C.,1975,Ceiba samauma (Mart. & Zucc.) Schum.,Tropical Timber Information Center Brief No. 11 U.S.D.A. Forest Service,1974,Wood Handbook,U.S.A. Department of Agriculture, Forest Service Handbook,72