Vidholdová, Zuzana, 1975- Influence of wood pre-weathering on selected surface properties of the system wood-coating film / Zuzana Vidholdová, Gabriela Slabejová, Jakub Kaloč. -- Obr., tab. -- Lit. - Treatment of wood surfaces with various finish coating materials is recommended for long term protection of wood products exposed outdoor. Due to natural weathering , the colour and the surface roughness of uncoated wood is changed. However, in practice it can happen that wood in constructions has been weathered prior to application of a finish. In this work , selected properties of pine wood surface such as colour, surface roughness and stability of coating film were investig ated . The surfaces of previous naturally weathered sapwood and heartwood of pine ( Pinus sylvestris , L.) were tested . Two coating materials useable for wooden constructions in exterior conditions were used: dark brown polyurethane - based system and light bro wn oil - based surface treatment. Experiments showed that the dark brown polyurethane - based system made all the wood surface uniform in colour. It homogenized the surface colour as well as the differences in roughness which occurred as a result of pre - weathering . The light brown oil - based surface treatment did not sufficiently outweigh the colour changes and nor the surface roughness which arose as a result of pre - weathering of wood. The results of pull - off test for adhesion showed that t he polyurethan e coating film had the weakest point in the pre - weathered layer of wood substrate and also at the wood/coating interface. The oil - based surface treatment had the weakest place inside the coating film or in the coating penetration layer in the wood substrate. Pre - weathering did not significantly affect the pull - off strength of the system wood - coating film.

In Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. -- Zvolen : Technická univerzita vo Zvolene, 2017. -- ISSN 1336-3824. -- Roč. 59, č. 2 (2017), s. 67-77

I. Slabejová, Gabriela, 1975-
II. Kaloč, Jakub
III. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. -- Roč. 59, č. 2 (2017), s. 67-77

630*174.7+582.475+630*811.5+630*811.51+667.6+621.792
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