Surface roughness of water-based finishes on aspen poplar wood
Journal Title: Annals of WULS, Forestry and Wood Technology; Zeszyty naukowe SGGW - Year 2017, Vol 98, Issue
Abstract
Surface roughness of water-based finishes on aspen poplar wood. The article deals with the roughness of transparent finishes on the surface of aspen poplar wood. The influences of the type of transparent finish and the thickness of the coating, and also the method of machining of the surface on the roughness of surface of aspen poplar wood were monitored. Aspen poplar wood was machined by one of five different ways of surface machining (milling, sanding, and three ways of pressing). Two types of transparent finish (water-based) were used to make coatings. The finishes were created in three various thicknesses. The surface roughness Ra (arithmetical mean deviation of profile) was measured. Statistical evaluation showed that the type of finish, the thickness of the coating, and also the method of wood machining affected the surface roughness. The roughness of the surface with the thinnest coating was higher than the roughness of the surface with medium thickness of the coating. The surface roughness measured across the wood grain was much higher if compared with the surface roughness measured in direction parallel to the wood grain. The surfaces with the thickness of the coating of 150 μm or more showed reduced surface roughness.
Authors and Affiliations
GABRIELA SLABEJOVÁ, MÁRIA ŚMIDRIAKOVÁ, MIROSLAV MORINGA
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