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Transparent and pigmented lacquer coatings based on new generation polymer systems were tested concerning aesthetic - decorative features after thermal aging cycles. Appearance, colour and gloss of coatings were examined in thermal aging conditions. It was stated among others that there is a tendency for decreasing of gloss and yellowness of pigmented coatings.
Transparent and pigmented lacquer coatings based on new generation lacquer systems for windows joinery were tested with special attention to resistance to selected factors (steam action and chemical agents). Decreasing tendency of lacquer coatings' resistance to steam action and detergents during thermal aging were shown. Aged coating systems were characterised by high resistance to acid medium.
The paper presents the results of chamber tests conducted on UV-cured water-based lacquer coatings applied on different wood species. Volatile organic compounds were transferred onto Tenax TA and then they were assayed by gas chromatographycoupled with mass spectrometry and thermal desorption. It was found thatUV-cured water-based coatings may be potential sources of the emission of volatile substances and thus pollute indoor air. Concentrations of these compounds in the chamber depended on the type of the lacquer system used and the type of finished surface. The highest emission of volatile substances was recorded from coatings applied onto the surface of pine wood. The coatings tested released aldehydes, ketones and alcohols, while in the case of pine wood, terpenes were also emitted. Analyses conducted 24 h and 72 h after the samples had been placed in the chamber, showed that the amounts of compounds released varied over time.
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