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ebony rosewood vitex kwila maple

 

Pacific Maple

(Pometia spp. mostly P. Pinnata - Sapindaceae) locally known as Akwa, Taun or Pometia


A popular timber in Japan for production-line furniture, very similar in most respects to Vitex, this attractive pinkish-brown hardwood can be utilized in a variety of construction situations where cost is prohibitive, but appearance is still important. Taun is becoming very popular in joinery, furniture, and cabinet work. It is suitable for planking and ribbing in marine applications. It is an ideal choice for general building and construction purposes like bearers and joists, staircase materials and flooring. In addition, Taun is said to have excellent acoustic properties. It is relatively inexpensive, and availability is never a problem.


PROPERTIES
Density 680kg/m3 (av.) @12% m.c
Colour Pinkish brown to pale reddish brown.
Texture Medium, slightly uneven; semi lustrous.
Grain Usually straight; sometimes wavy.
Figure Cathedral-like figure on back sawn faces. Ribbon or banded figure on quarter sawn faces.
Durability Durable in exterior situations out of the ground.
Permeability Heartwood, resistant to pressure impregnation.
Lyctid-borer Susceptible.

WORKABILITY
General Good working and finishing properties.
Sawing Readily sawn with little blunting effect.
Planing Reduction in cutting angle to 20° recommended.
Blunting Low.
Boring Good characteristics. Some slight burning may occur.
Turning Good characteristics producing sharp arrises; finish sometimes slightly fibrous.
Nailing Nails well, but pre-drilling advisable to prevent splitting on board ends.
Gluing Glues well with all adhesives.
Finishing Polishes very well, giving a lustrous surface.

MECHANICAL PROPERTIES
Strength SD5 (seasoned).
Structural Grade F17 (select grade).
Toughness (Izod) 14J (seasoned), 14J (unseasoned).
Hardness (Janka) 6.5kN (seasoned), 4.2kN (unseasoned).
Max. Crush 60 MPa (seasoned), 31 MPa (unseasoned).
Elasticity 14 GPa (seasoned), 11 GPa (unseasoned).
Rupture 106 MPa (seasoned), 67 MPa (unseasoned).

SEASONING
General Seasons well but some collapse can occur. A high humidity re-conditioning treatment needs to be applied.
Movement Medium.
Shrinkage Medium.

 

 

 

 

 

 

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