The Influence of Traditional Wood Finishing Substances on Surface Roughness
Journal Title: Annals of WULS, Forestry and Wood Technology; Zeszyty naukowe SGGW - Year 2017, Vol 99, Issue
Abstract
The Influence of Traditional Wood Finishing Substances on Surface Roughness. The purpose of the project was to assess the traditional substances used for finishing wooden parquets and their influence on surface roughness. The study of traditional finishing coatings included the assessment of their aesthetical effects and changes in wood surface properties. Therefore, macro and microscopic surface characteristics were considered, with the determination of Ra, Rz and Rmax. Both visual assessment and roughness test results indicate that wax provides the best surface quality out of the traditional wood finishing methods. Roughness value is evidently higher for wood without finish and wood covered with varnish, when compared with wood finished with wax. The finishing of samples with wax significantly reduces roughness parameters (up to over 50%), as well as synthetic parquet oil and wax oil - to a lesser extent (by about 10-20%). The reduction of parameter values caused by varnish surface finishing is not statistically significant. The influence of the wood finishing substance on the differences between roughness measured along and across fibres (expressed in %) is most substantial in case of wax. In case of measurements across fibres, the percentage difference of change in parameters after covering with wax is two times higher than in case of oil coating, and the latter in turn is two times higher than after finishing with varnish. For wax finishing, the biggest changes in surface roughness (in %) were observed for elm wood, and in case of other kinds of wood finishing, for oak.
Authors and Affiliations
Piotr Kielbesz, Anna Różańska, Wojciech Korycinski
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