PERUBAHAN WARNA DAN LAPISAN FINISHING LIMA JENIS KAYU AKIBAT PENCUACAAN
Main Article Content
Abstract
The increase use of wood products for outdoor arises from warmth color and amenity properties of wood. However,
wood is naturally degraded in term of color changes and finishing layer percentage after outdoor exposure. This paper
presents wood color change and finishing layer durabillity after one year outdoor exposure. Five lesser known wood
species from Riau were coated transparently using acrylic, enamel, polyurethane, ultran lasur ultra violet (UV), and
ultran politur P-03 UV prior to outdoor exposure. Wood color differences were assessed according to CIELab system
and coating film coverages were digitally analyzed by ImageJ software. The result showed that natural wood color turned
into greyish pale after one year outdoor exposure. Color changes are relatively high in the first month then moderate
and little changes every month there of. Finished layer wood samples were more resistant to weathering than unfinished
surfaces. Finishing material of enamel (ET), lasur (LSR), and P03 (PP) experienced better coverage than acrylic and
polyurethane finish. Finishing layer is gradually degraded, then re-finishing is necessary for optimal outdoor protection.
Relationships between finishing coverage and color change showed medium correlation, where the greater finishing
coverage, the greater the color changes.
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References
Allen, N. S., Edge, M., Ortega, A., Liauw, C. M., Stratton, J., & McIntyre, R. B. (2002). Behaviour of nanoparticle (ultrafine) titanium dioxide pigments and stabilizers on the photooxidative stability of water based acrylic and isocyanate based acrylic coatings. Polymer Degradation and Stability, 78, 467–478.
American Society for Testing and Materials (ASTM). (1993). Standard test method for evaluating degree of cracking of exterior paints (ASTM D 661-1993). American Society for Testing Materials.
American Society for Testing and Materials (ASTM). (1995). Standard test method for evaluating degree of surface disfigurement of paint films by microbial (fungal or alga) growth or soil and dirt accumulation (ASTM D 3274-1995). American Society for Testing Materials.
American Society for Testing and Materials (ASTM). (2012). Standard specification for wood to be used as panels in weathering tests of coatings. (ASTM D358-2012). American Society for Testing Materials.
Balfas, J. (2017). Kualitas Politur Organik dari Ekstrak Kayu Jati dan Sirlak. Jurnal Penelitian Hasil Hutan, 35(1), 53–71. doi: 10.20886/jphh.2017.35.1.53-71.
Biblis, E. J. (2000). Effect of weathering on surface quality and structural properties of six species of untreated commercial plywood siding after six years of exposure in Alabama. Forest Products Journal, 50(5), 47–50.
Cohen, J. (2003). Applied multiple regression/correlation analysis for the behavioral sciences (3rd ed.). New Jersey: Lawrence Erlbaum Associate.
Darmawan, W., & Purba, I. (2009). Daya tahan lapisan finishing eksterior beberapa jenis kayu terhadap pengaruh cuaca. Jurnal Ilmu dan Teknologi Hasil Hutan, 2(1), 1–8.
Deka, M., & Petric, M. (2008). Photo-degradation of water borne acrylic coated modified and non-modified wood during artificial light exposure. BioResources, 3(2), 346–362.
Dubey, M. K., Pang, S. S., & Walker, J. (2010). Color and dimensional stability of oil heat-treated radiata pinewood after accelerated UV weathering. Forest Products Journal, 60(5), 453–459. doi: 10.13073/0015-7473-60.5.453.
Evans, P., Haase, J., Seman, A., & Kiguchi, M. (2015). The search for durable exterior clear coatings for wood. Coatings, 5(4), 830–864.doi: 10.3390/coatings5040830.
Hansmann, C., Deka, M., Wimmer, R., & Gindl, W. (2006). Artificial weathering of wood surfaces modified by melamine formaldehyde resins. Holz Als Roh- Und Werkstoff, 64(3), 168–203.
Hayes, J., Golden, M., & Smith, G. D. (2006). From formulation to finished product: Causes and potential cures for conservation concerns in acrylic emulsion paints. Dalam T. J. S. Learner, P. Smithen, J. W. Krueger, & M. R. Schilling (Eds.), Modern Paints Uncovered (pp. 58–65). London: The Getty Conservation Institute.
HunterLab. (2008). CIELab color scale Hunter lab. Diakses dari https://www.hunterlab.com/duplicate-of-basics-of-color-theory.pdf pada 9 Februari 2018.
Keating, W. G. (1994). Tetramerista Miq. Dalam I. Soerianegara & R. Lemmens (Eds.), Plant Resources of South-East Asia 5 (1). Timber trees: Major commercial timbers (pp. 454–458). Bogor: PROSEA.
Krisdianto. (2013). Pengukuran warna kayu dengan sistem CIELab. Forpro, 2(1), 28–31.
Krisdianto, Dewi, L. M., & Muslich, M. (2015). Analisis hasil pengujian kayu yang diserang penggerek kayu di laut dengan interpretasi gambar digital. Jurnal Penelitian Hasil Hutan, 33(1), 11–18.
Mack, A., Sturman, S., & Escarsega, J. A. (2006). Adapting military camouflage paint for matte outdoor sculpture. Dalam T. J. S. Learner, P. Smithen, J. W. Krueger, & R. Schilling (Eds.), Modern Paints Uncovered (pp. 66–74). London: The Getty Conservation Institute.
Nejad, M., Ung, T., & Cooper, P. (2012). Protocol comparison: Laboratory versus natural weathering tests for performance evaluation of coatings on preservative-treated wood. Forest Products Journal, 62(3), 177–183. doi: 10.13073/0015-7473-62.3.177.
Nguyen, T. B. (1998). Alphonsea Hook.f.& Thomson. Dalam M. S. M. Sosef, L. T. Hong, & S. Prawirohatmodjo (Eds.), Plant Resources of South-East Asia 5 (3). Timber trees: Lesser-known timbers (pp. 66–67). Bogor: PROSEA.
Oey, D. S. (1990). Berat jenis dari jenis-jenis kayu Indonesia dan pengertian beratnya kayu untuk keperluan praktek. Lembaga Penelitian Hasil Hutan, Bogor.
Ozgenc, O., Hiziroglu, S., & Yildiz, U. C. (2012). Weathering properties of wood species treated with different coating applications. BioResources, 7(4), 4875–4888. doi: 10.15376/biores.7.4.4875-4888.
Pandey, K. K. (2005). Study of the effect of photo-irradiation on the surface chemistry of wood. Polymer Degradation and Stability, 90(1), 9–20. doi: 10.1016/j.polymdegradstab.2005.02.009.
Propan Raya. (2015a). Ultran lasur: Deep penetrating exterior lasur. Diakses dari https://www.propanraya.com/files/uploads/media/spesification-ultran-lasur-laser-el-501-ls_2017-12-28_11-51-54-22-catalog-wood-finish_ultran-lasurpdf.pdf pada 9 Februari 2018.
Propan Raya. (2015b). Ultran politur P-03 UV. Diakses dari https://www.propanraya.com/files/uploads/media/spesification-ultran-politur-p-03-uv_2017-12-28_10-18-48-20-catalog-wood-finish_ultran-p-03-uvpdf.pdf pada 9 Februari 2018.
Quarles, S. L., Kobzina, J. W., & Geisel, P. M. (2004). Selecting lumber and lumber substitutes for outdoor exposures. Diakses dari http://anrcatalog.ucanr.edu/pdf/8144.pdf pada 9 Februari 2018.
Schallen, C., Rogez, D., & Braig, A. (2008). Hydroxyphenyl-s-triazines: Advanced multipurpose UV-absorber for coatings. Journal of Coating Technology Research, 5(1), 25–31.
Smithens, P. (2006). A history of the treatment of acrylic painting. Dalam T. Learner, P. Smithen, J. Krueger, & M. R. Schilling (Eds.), Modern Paints Uncovered (pp. 165–174). London: The Getty Conservation Institute.
Temiz, A., Terziev, N., Eikenes, M., & Hafren, J. (2007a). Effect of accelerated weathering on surface chemistry of modified wood. Applied Surface Science, 253(12), 5355–5362. doi: 10.1016/j.apsusc.2006.12.005.
Temiz, A., Terziev, N., Eikenes, M., & Hafren, J. (2007b). Effect of accelerated weathering on surface chemistry of modified wood. Applied Surface Science, 253(12), 5355–5362. doi: 10.1016/j.apsusc.2006.12.005.
Tonanon, N., & Lemmens, R. H. M. J. (1994). Palaquium Blanco. Dalam I. Soerianegara & R. H. M. J. Lemmens (Eds.), Plant Resources of South-East Asia 5 (1). Timber trees: Major commercial timbers (pp. 303–319). Bogor: PROSEA.
Vidholdova, Z., Slabejova, G., & Kaloc, J. (2017). Influence of wood pre-weathering on selected surface properties of the system wood-coating film. Acta Facultatis Xylologiae Zvolen, 59(2), 67–77.
Williams, R. S. (1999). Finishing of wood. Dalam Wood handbook: Wood as an engineering material (pp. 15–37). Madison: Forest Products Society.
Wiselius, S. I., & Noshiro, S. (1995). Aglaia Lour. Dalam R. H. M. J. Lemmens, I. Soerianegara, & W. C. Wong (Eds.), Timber trees: Minor commercial timbers (5(2), pp. 38–54). Bogor: PROSEA.
Wong, W. C. (1994). Shorea Roxb. ex Gaertner. Dalam I. Soerianegara & R. H. M. J. Lemmens (Eds.), Plant Resources of South-East Asia 5 (1). Timber trees: Major commercial timbers (pp. 384–404). Bogor: PROSEA
