Comparison of test methods for coatings on wood

• Autorzy: Pánek, M. , Reinprecht, L. , Čuchranová, E.
• Języki publikacji: EN

Abstrakty

EN

The article compares two different testing methods of color changes of wood coatings with varying pigment content and varying surface quality before finishing. For both Xenotest as well as Exterior testing method were set up same conditions of wood surface and all samples were coated by the same amount of paint in three layers. Three different shades of paints were tested and then compared to reference sample without any finishing paint. We also tested influence of girt size to divergence of methods by using two different sizes of abrasives for preparation of finishing. Xenotest method is faster and has only slight differences in pattern of changes in comparison to exterior method but only in case of pigment paints. When transparent finishing patterns of changes were compared differences of methods were increasing while surface quality had very significant influence to color changes in case of Xenotest. To compare and predict quality of paint systems is more suitable to use faster Xenostest but on the other hand for obtaining exact values of color changes long term exterior tests are needed.

Słowa kluczowe

EN

Paints and varnishes; UV chamber; wood colorfastness; xenotest

• Czasopismo: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
• Rocznik: 2014
• Tom: No. 88
• Strony: 187--192
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Pánek, M.

• Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague

autor

Reinprecht, L.

• Faculty of Wood Sciences and Technology, Technical University in Zvolen

autor

Čuchranová, E.

• Faculty of Wood Sciences and Technology, Technical University in Zvolen

Bibliografia

• 1. CIE (1986). Colorimetry. 2nd Edition, CIE Pub. No. 15.2. Commission Internationale de l’Eclairage, Vienna, 74 s.
• 2. EN 927-3 (2000). Paints and varnishes – Coating materials and rating systems for exterior wood – Part 3: Natural weathering test, European Commmitee for Standardization, Brussels.
• 3. EN 927-6 (2006). Paints and varnishes – Coating materials and rating systems for exterior wood – Part 6: Exposure of wood coatings to artificial weathering using fluorescent UV lamps and water, European Commmitee for Standardization, Brussels.
• 4. EN 15187 (2006). Furniture – Assessment of the effect of light exposure, European Commmitee for Standardization, Brussels.
• 5. ISO 7724 (1984). Paints and varnishes – Colorimetry, International Organization for Standardization, Switzerland.
• 6. PÁNEK, M., REINPRECHT, L. (2013). „Comparison of natural exterior and artificial Xenotest ageing of selected paints on spruce wood from the point of view of their colour changes,” In: COST Action FP 1006, 3rd Workshop –“Process and Service life modeling,” April 17 – 19, Ghent, Belgium, Abstract 2 p.
• 7. REINPRECHT, L. (2008). „Ochrana dreva. (Protection of wood),“ TU in Zvolen, 453 p.
• 8. REINPRECHT, L., BACULÁK, J., PÁNEK, M. (2011). „Prirodzené a urýchlené starnutie náterov pre drevené okná = Natural and accelerated ageing of paints for wooden windows,“ In: Acta facultatis xylologiae Zvolen, TU in Zvolen, 53(1), 21-31.
• 9. REINPRECHT, L., PÁNEK, M. (2013). „Vplyv pigmentov v náteroch na prirodzené a urýchlené starnutie povrchov smrekového dreva = Effect of pigments in paints on the natural and accelerated ageing of spruce wood surfaces,“ In: Acta facultatis xylologiae Zvolen TU in Zvolen, 55(1), 71-84.
• 10. STEJSKAL, V. (1994). „Moli, červotoči a jiní škůdci materiálů v domácnostech, skladech a chalupách,“ Praha, SCRIPTUM spol. s r. o., 56 p.