Ayata, ÜmitÇakıcıer, Nevzat2020-05-012020-05-0120171303-2399https://doi.org/10.17475/kastorman.307003https://hdl.handle.net/20.500.12684/5533WOS: 000425843900016Aim of study: The objective of this study is to investigate the accelerated UV resistance of water-based varnish layers, applied on heat-treated wood (ThermoWood) surfaces. Area of study: Determination of the relationship between heat-treated, water based varnish, aging and color. Material and Methods: Wood specimens prepared from Scotch pine (Pinus sylvestris L.), Oak (Quercus petreae L.) and Oriental beech (Fagus orientalis L.) were heat-treated according to ThermoWood method at 190 degrees C for 2 hours, and at 212 degrees C for 1 hour and 2 hours. Following the heat treatment, one and two component water-based varnishes were applied to similar layer thicknesses. The finished specimens were exposed to UV-A 340 nm fluorescent lamp in a "QUV accelerated weathering tester" for 144, 288 and 432 hours (ASTM G 154-06, 2006). At the end of each exposure period, red color tone, yellow color tone, lightness and total color difference values were determined according to ASTMD 2244-3. Main results: Lightness and total color difference values of the water-based single and double component varnishes increased after the UV aging. Research highlights: All color parameters had changed due to aging.en10.17475/kastorman.307003info:eu-repo/semantics/openAccessHeat TreatmentUV AgingWater-Based VarnishColorArticle174703714N/A