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Need for Myanmar Teak

  • Australia Australia  
  • Last Updated:
    Posted on: 23 Jul 2021

RFQ Details

Need for Myanmar Teak.Teak Log Characteristics
Teak timber has qualities as: durability, workability, beautiful figure and non-spliting. Some desirable features are: straight grain, knotless and defect free. Teak is exceptionally stable under changes of temperature and moisture: free from warping in drying. Four major teak color types are recognized in Myanmar:
1. Uniform Golden color, straight grained and even texture and with few markings. Such teak is found in BAGO YOMA forests and the forest of Upper Myanmar. It is the best teak of the country and is much preferred by foreign customers.
2. Darker in color and harder, mostly found in the dry forests of the country. It is a good teak apart from a higher density and comparatively harder in working properties.
3. The color is uniform grey-brown and mostly cross-grained and found in the northern part of the country. Sometimes bee holes are observed. This variety could be said to be the worst quality of the quality of the country, but it may yet be better than the standard quality teak of other origins in the teak-bearing region.
4. Black stripe teak in Thayet and Taunndwungyi areas with a limited availability. It is a good ornamental timber and previously a high price was obtained. It is said that black stripe teak also occurs in Java.
Quality of Teak
Durability, stability, workability and ease in pre-treatment are the major determining factors of good quality teak. Beautiful figure, color, density and rate of growth are other wanted qualities. Straight-grained, knotless and defect-free timbers are also desirable qualities.
Durability of Teak
Teak is one of the most durable timbers in the world. On some dry sites, it has lasted for more than seven hundred years. In contact with ground, it can remain serviceable for more than twenty-five years. Extractives present in the heartwood are believed to be responsible for its durability. Several studies of teak heartwood extractives and decay resistance showed that most teak heartwood extractives directly contribute to the natural durability of teak. Decay resistance increases from the pith to the sapwood and is also related to the age, rate of growth and extractive content. It is also found out that a wide range of variation exists in decay resistance both between tress and within a tree. These variations are largely dependent on genetic rather than environmental influences. The basal portion is said to be not very durable, while the most durable portion is about 12.5 feet from the base. The middle to outer heartwood is the durable part and also contains the highest concentration of extractives. A teak tree consists of more heartwood than sapwood. Normally, the sapwood has about 0.5 Inch thickness in old-aged large trees whereas it consists of about 0.6-1 Inch sapwood in young tress of age 20 years and below. Natural durability is one of the prerequisites that make teak a high quality timber.
Stability and Movement
Teak is an exceptionally stable timber under changes of temperature and moisture. It is free from warping in drying. Movement due to its low shrinkage is unrivalled among the timbers of the world.
The shrinkage and the specific gravity of teak from different localities are given in Table 1. It consists of both natural and plantation-grown teak, as well as girdled and green-felled teak.The specific gravities are on the basis of oven dry weight and green volume. Shrinkage data are from green condition to the oven dry state.Interested suppliers please feel free to contact.If your rates are reasonable then we will contact you soon. Awaiting for your soonest response.