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: 13
Number of individual trees analyzed: 14
Number of specimens: 35
Number of measurements: 105
Max PZC read (of all measurements): 24.8
Min PZC read (of all measurements): 10.3
Max PZC average on one log: 22.4
Min PZC average on one log: 13.2
PZC Average of all logs: 17.4

Species: pterocarpus soyauxii
Family: Fabaceae
Clade: Angiospermae
Description: A medium to large deciduous tree known for its distinctive bright red heartwood. It features alternate pinnate leaves, yellow pea-like flowers, and flat, winged seed pods.
Other Local Names: Padauk, Tacula, Corail, Mbel, Kisésé, Mbel, Palo rojo, Paduk, Osun, Padoek, Padouk, Mongola, Mukula, N’gula, African padauk, Barwood, Camwood, Padauk

Reference Colour: Red
Texture: Coarse
Grain: Straight or interlocked
Interlocked Grain: Slight
Notes: Wood bright red becoming purplish brown with light.

Diameter: 60÷100cm
Density @12% MC: 790kg/m³
Janka Hardness: 2490lbf
Crushing Strength @12%MC: 65MPa
Static Bending Strength @12%MC: 116MPa
Longitudinal Modulus of Elasticity E: 15.87GPa
Volumetric Shrinkage Coefficient: 0.44% per %
Total Tangential Shrinkage TS: 5%
Total Radial Shrinkage TS: 3.2%
T/R Anisotropy Ratio: 1.6-
Fibre Saturation Point: 21%
Thermal Conductivity: 0.26W/mk
Sapwood Thickness: 6÷10cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 1 – very durable
Resistance to Dry Wood Borers: Class D – durable (sapwood demarcated, risk limited to sapwood)
Resistance to Termites: Class D – durable
Treatability: Class 2 – moderately treatable. Atlas of Tropical Timber Species AFRICAN
Use Class Covered by Natural Durability: Class 4 – in ground or fresh water contact
Durability Notes: This species is listed in the NF EN 350 standard. This species only naturally covers the use class 5 (wood permanently or regularly submerged in salt water, sea water or brackish water) for uses in temperate and cold environments. According to the European standard NF EN 335 of May 2013, performance length might be modified by conditions in which it is used.

Log Buoyancy: Does not float
Log Conservation: Moderate (treatment recommended)
Drying Rate: Normal to slow
Drying Risk of Distortion: No risk or very slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: No risk or very slight risk

Blunting Effect: Fairly high
Machining Tool: Tungsten carbide
Suitability for Peeling: Not recommended or without interest
Suitability for Slicing: Good
Sawing Machining Notes: Sawdust is an irritant. Sawing and machining requires powerful equipment.
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Pre-boring necessary due to risk of splitting, in particular for small pieces.
End Uses: Turned goods, Industrial or heavy flooring, Heavy carpentry, Sliced veneer, Ship building (planking and deck), Decking, Shipbuilding (ribs), Bridges (parts in contact with water or, Cabinetry (high-end furniture) ground), Stairs (inside), Bridges (parts not in contact with water, or ground), Vehicle or container flooring, Sculpture, Percussion instruments, xylophones, Seats, Exterior joinery, Hydraulic works (seawater), Interior joinery, Sleepers, Flooring

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