Abstract
This paper outlines experimental approaches to improve durability of clear coating for wood by impregnation of polyethylene glycol methacrylate (PEGMA) before undercoating and by use of a newly developed fluoropolymer as a top coat. Durability of such coating systems were compared with ordinary coating systems by both outdoor exposure tests and laboratory tests. Appearance changes of the coating systems were investigated by measurement of color difference and gloss retention. Moreover, surface morphology of some of the specimens was investigated by use of scanning electron microscopy (SEM). Through these data, effect of PEGMA and fluoropolymer on durability was discussed by comparing with ordinary coating systems.
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