Properties of thermally modified Scots pine (Pinus sylvestris L.), Kazdağı fir (Abies equi-trojani Asch. et Sint.), and Eastern beech (Fagus orientalis Lipsky)

Surface roughness and discoloration of thermally modified Scots pine (Pinus sylvestris L.), Kazdağı fir (Abies equi-trojani Asch. et Sint.), Eastern beech (Fagus orientalis Lipsky) were evaluated. The surface the samples sanded with 60, 80, 120-grit grades evaluated at temperature levels 160, 180, 200, 220 °C. Findings subjected to multiple analysis variance Duncan’s homogeneity tests; using SPSS package program, single, double, triple, quadruple interactions analyzed. highest values found in radial cross-section (12.4 µm) finished 60-grit sandpaper. lowest value was Kazdagi that heat-treated 200 °C processed sandpaper (2.03 µm). evaluation (∆E) eastern 32.43, ∆E 46.86 pine.