DAYA TAHAN LAPISAN FINISHING EKSTERIOR BEBERAPA JENIS KAYU TERHADAP PENGARUH CUACA
ABSTRACT: 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
Penulis: Wayan DARMAWAN, Itan
Iskova PURBA
Kode Jurnal: jpkehutanandd090059
