To keep safe timber from attacking of wood worm or termite, a special type of chemical (preservative) is penetrated into the core of timber through “Pressure Treatment Process” and it is called timber treatment.
The main objectives of Timber Treatment are as follows:
- To save timber from termite or worm attack
- To change internal properties of timber
- To increase durability of wood
Generally, Mango timber & Rubber timber are widely treated with chemical for the purpose of making furniture. Both Mango and Rubber timber (Treated & Seasoned Timber) are used for furniture manufacturing.
Result of Timber Treatment:
After chemical treatment
- Life of timber is increased up to 30 years (in some cases, it may be up to infinity)
- Properties of timber is changed
- They become similar to Oak and Teak timber
If you want, you can give life guarantee to customer on treated & seasoned timbered furniture from attacking worm/termite. It is also noted that life of treated & seasoned mango or rubber timber is higher than untreated mahogany or oak timber.
In a word, Timber seasoning means Timber Drying. In another words, Seasoning is a process of drying timber through removing extra moisture (water) from core of timber in a specific method. After seasoning or timber drying, recommended moisture content is 10-12%. It is the standard moisture content of seasoned timber.
Why moisture is kept 10-12% after seasoning:
Generally, recommended moisture content of seasoned timber is 10-12%. It is kept within this limit because, if it is lower than that, timber may be cracked or bent. If it is kept higher than that, timber may be expand or shrink later which may be clearly seen after furniture manufacturing.
No timber should be used in furniture manufacturing without proper seasoning. The timbers which require chemical treatment must be done seasoning also. That means, at first treatment, then seasoning.
Remember that “Wood is live though it is dead”. It means, although timber is seasoned properly, but, sometimes you can see a hair line on the timber joining area in solid wooden furniture and it is due to that true words (“Wood is live though it is dead”). It does not mean that timber is unseasoned.