Coating systems on Thermowood were tested for 12 and 18 weeks using artificial accelerated weathering in laboratory conditions. Artificial weathering was conducted in a UV-chamber QUV (Q-Lab, Cleveland, OH, USA) on the basis of modified EN 927-6. Temperature cycles were added each week of testing. Colour, gloss, surface wetting changes and microscopic and visual evaluation were done. The most durable coatings and coatings with the worst results were selected on the base of complex evaluation of measured properties. Similar experiments have been already done for other companies and cooperation with Thermory a.s. continue.
UV-chamber QUV (Q-Lab, Cleveland, OH, USA) used for accelerated artificial weathering in Laboratory at Faculty of Forestry and Wood Sciences Czech University of Life Sciences in Prague.
Photos of tested thermowood samples with or without surface treatment after 0, 3, 6, 9 and 12 weeks of accelerated artificial weathering in UV-chamber. Surfaces after 12
