Chatoyance was measured by the chatometry.com team using the PZC method. The statistics for this specific timber are hereby summarized to provide an evaluation of data robustness:
Number of sources for samples: 2
Number of individual trees analyzed: 2
Number of specimens: 4
Number of measurements: 15
Max PZC read (of all measurements): 14.0
Min PZC read (of all measurements): 8.1
Max PZC average on one log: 13.0
Min PZC average on one log: 8.7
PZC Average of all logs: 10.8

Species: hevea spp.
Family: Euphorbiaceae
Clade: Angiospermae
Description: Hevea spp. (rubber tree) are medium to large deciduous trees with alternate, trifoliate leaves. They are primarily cultivated for their milky latex, which is the main source of natural rubber.
Other Local Names: Mapalapa, Seringa, Seringueira, Rubber wood, Hévéa, Hatti, Hevea wood, Jeve, Shirenga, Para rubber tree, Rubber tree, Arbol de caucho

Reference Colour: Creamy white
Texture: Coarse
Grain: Straight or interlocked
Interlocked Grain: Slight
Notes: Logs must be treated, extracted and sawn as soon as possible after felling. Cream white wood becoming light brown.

Diameter: 30÷60cm
Density @12% MC: 650kg/m³
Janka Hardness: 900lbf
Crushing Strength @12%MC: 51MPa
Static Bending Strength @12%MC: 82MPa
Longitudinal Modulus of Elasticity E: 11.76GPa
Volumetric Shrinkage Coefficient: 0.41% per %
Total Tangential Shrinkage TS: 5.6%
Total Radial Shrinkage TS: 2.2%
T/R Anisotropy Ratio: 2.5-
Fibre Saturation Point: 24%
Thermal Conductivity: 0.22W/mk
Lower Heating Value: 17850KJ/Kg
Sapwood Demarcation: Not demarcated

Resistance to Decay: Class 5 – non-durable
Resistance to Dry Wood Borers: Class S – susceptible (risk in all the wood)
Resistance to Termites: Class S – susceptible
Treatability: Class 1 – treatable Atlas of Tropical Timber Species
Use Class Covered by Natural Durability: Class 1 – inside (no risk of dampness)
Durability Notes: Prone to blue stain.

Log Buoyancy: Floats
Log Conservation: Low (treatment necessary)
Drying Rate: Rapid
Drying Risk of Distortion: High risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: High risk

Blunting Effect: Normal
Sawing Tooth: Ordinary or alloy steel
Machining Tool: Ordinary
Suitability for Peeling: Good
Suitability for Slicing: Good
Sawing Machining Notes: Presence of internal stresses. Latex tends to clog saw teeth.
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Tends to split with nailing.
Additional Notes: Stains well
End Uses: Framing, Boxes and crates, Stairs (inside), Veneer for interior of plywood, Panelling, Glued Laminated, Interior joinery, Built-in furniture or mobile item, Moulding, Blockboard, Fibre or particle boards, Sliced veneer, Pulp

Source 1: Tropical Timber Atlas, Editions Quae, e-ISBN 978-2-7592-2770-9