Full Length Research Paper

Effects of application methods and species of wood on color changes of varnishes

Mehmet Budakci¹, Ayhan Ozcifci², Hamza Cinar³ and Abdullah Sonmez³

¹Duzce University, Faculty of Technical Education, Department of Furniture and Decoration 81620 Konuralp-Duzce, Turkey.

²Karabuk University, Faculty of Technical Education, Department of Furniture and Decoration 70850 Karabuk-Turkey.

³Gazi University, Faculty of Technical Education, Department of Furniture and Decoration 06500 Ankara-Turkey.

*Corresponding author. E-mail: mehmetbudakci@duzce.edu.tr.

Tel: 0090 380 5421133 / 2121. Fax: 00 90 380 5421134.

Accepted 5 October, 2009

   Abstract

In this study, the color effects of wood materials to coloring with different application methods (brush, roller sponge and spray gun) and waterborne varnishes were investigated according to ASTM-D 2244. For this purpose, the experimental samples of Scots pine (Pinus silvestris L.), oriental beech (Fagus orientalis L.) and oak (Quercus petreae L.), which are commonly used woods in the carpentry and furniture industry in Turkey, were prepared and varnished with one and two-pack waterborne varnishes in accordance with ASTM D 3023. According to the result of the research, significant color changes in coloring as red and yellow tones on the sample surfaces of varnished wood materials were found. The highest color change was obtained in the samples of oak, when varnished with brush and spray gun while the lowest value was obtained in roller sponge in respect to the application methods for waterborne varnishes. However, the application method of spray gun for self crosslinked polyurethane, topcoat-clear, (SCPt) gave the highest metric chroma value among the three different application methods.

Key words: Waterborne varnishes, application methods, wood materials, color change.