Abstract

The surface hardness, surface roughness, glossiness, and color difference were determined for wooden materials produced from three commonly used species - two native of Turkey and one exotic - treated with one- and two-component water-based varnishes and exposed to different amounts of radiation to mimic accelerated aging using a QUV aging device. One- and two-component water-based varnishes were applied two-and three coats to Scoth pine (Pinus sylvestris L.), Iroko (Chlorophora excelsa), and Anatolian chestnut (Castenea sativa Mill.) woods. Then, the varnish coated materials were exposed to QUV aging devices for 216 and 432 h. Results indicated that thesurface hardness and glossiness were decreased for all the three wood species across all the treatment combinations. However, values of surface roughness and color difference were increased for all the three wood species across all the treatment combination.

Key words: QUV aging, surface hardness, surface roughness, glossiness, color difference, contact information.