Vol 2, No 1 (2009)

Jurnal Ilmu Teknologi Hasil Hutan

Table of Contents

Articles

Wood products exposed outdoor could be weathered, especially in the tropical region with high in sun light intensity, rain intensity, and relative humidity. An effort that could be done to protect and enhance wood performance is finishing. The purpose of this research is to understand the durability of finishing layer of the finished wood exposed outdoor. The effects of surface condition of boards (planed and unplaned), sawing pattern (quarter sawn and plain sawn), and type of wood finishes (Ultran Lasur UV and Ultran Politur P-03 UV) were studied. The experimental results showed that finishing layer of Meranti batu was the lowest in durability.  The results also indicated that durability of finishing layer depicted by unplanned and plain sawn boards were lower than that of the planed and quarter sawn board. The finishing layer was considered to provide a good protection to the surfaces of board against failures. The presence of failure due to microbial disfigurement and cracking on the surfaces of the finished samples (in average) were 15% and 18% consecutively. On the other hand, the percentages of failure were observed to be 95% due to microbial disfigurement and 81% due to cracking for the unfinished wood. Comparing the two exterior wood finishes used in this experiment, it was found that Ultran Politur P-03 UV provided almost the same protection against microbial disfigurement and cracking compared to Ultran Lasur UV.

 

Keywords :     Exterior  finishing layer,  microbe stain, surface crack, surface check

Wayan DARMAWAN, Itan Iskova PURBA
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Jamaludin MALIK, Mochamad Isa ISKANDAR
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Ganis LUKMANDARU
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Elis Nina HERLIYANA
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Farah DIBA, Dodi NANDIKA
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The development of baiting system was very advanced, however it was very expensive thus the use of it was limited on certain community. Based on those conditions, it was needed a researches on local resourches basis or low cost material baiting system in order to be applicated in building protection included simple home. This researches consisted of laboratory and field test. The laboratory test was performed to determine preference baiting media (pulp, sawdust, Pinus merkusii wood, WMD (wood monitoring devices) from Pinus radiata and reliability tested between disodium borax decahydrate and chitosan against Coptotermes curvignathus. After the determination of baiting system and reliability, field test was performed on termite attacked building. Field test consisted of termite presence detection,observatory station, determination of consumption rate and baiting system resistance. The laboratory results showed the most preference baiting system was WMD with persentage weight loss was 40.5%. The comparation of reliability between disodium borax decahydrate and chitosan showed that termite mortality of disodium borax decahydrate was higher than chitosan, meanwhile reliability results showed oltherwise. Chitosan field test showed eating consumption level was decreasing at 75th days and on 135th days eating consumption level was rached 15 gr/day. It meaned there was a decreasing of termite population cause of termite baiting system.

 

Keywords :  Pulp, disodium borax, chitosan, baiting, Coptotermes curvignathus

Yudi RISMAYADI, ARINANA .
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Lina KARLINASARI, Ina RITA, Istie Sekartining RAHAYU
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