The Effect of Hot-Cold Shock Test on Changes in Gloss and Roughness in Epoxy Resin Coated Wood Material

In this study, epoxy resin was applied as a surface treatment material to wood species of different specific gravity: Scots pine (Pinus sylvestris L.), Turkish beech (Fagus orientalis Lipsky) and sweet chestnut wood (Castanea sativa Mill.). It aimed to determine the changes in roughness values (in accordance with TS 2495 EN ISO 3274 standard and TS 6212 EN ISO 4288 standard) and gloss values (in accordance with TS 4318 EN ISO 2813 standard) in the test specimens pre-post hot and cold shock effect. Surface-treated test specimens were first kept in a fan drying oven at (50 ± 5) °C for an hour and then kept at (-20 ± 2) °C for an hour, in accordance with ASTM D1211-97. All processes were regarded as a cycle, and the experiments continued until 15 cycles were carried out. Then, the gloss and roughness values were determined and analysed with the control specimens in the MSTAT-C statistical program. According to the results, all gloss values of epoxy resin-coated wooden material surfaces decreased after the hot-cold shock experiment, whereas a decrease in roughness was detected. It is thought that this research will contribute to advising the firms that import furniture to nations with various climatic conditions about the physical properties of surface-treated products.