This study is carried out for determining the changes occurring on the amount of the material used on the protective layer when polyurethane and acrylic (lacquered) dye is applied on the test samples prepared from sandwich type composite (blockboard) boards with their surface coated or uncoated with paper, which are used for the yacht furniture and interior decoration. After applying polyurethane and acrylic dye on the 10 test samples prepared as coated or uncoated with paper with 10 x 10 x 1.6 cm sizes from blockboard, the average surface roughness (Ra) values of the protective layer as applied in TS 6956 (2004) have been determined and the total color differences have been determined according to the essentials specified in ASTM- D2244-07e1. According to the result of the study, concealing dyeing is obtained with less roughness and no color difference by using less lacquer dye on the boards coated with paper. With this study, it is possible to suggest that coating with paper before lacquer dyeing can be a preferable application in terms of cost and time saving.
Key words: Composite board, blockboard, dye, layer, surface roughness, color.
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