Evaluation of the Impacts of Four Weathering Methods on Two Acrylic Paints: Showcasing Distinctions and Particularities
Source abstract
Abstract
Two commercial waterborne wood acrylic paints were applied to wood samples and the weathering resistance of samples was tested using four different weathering methods: outdoor exposure in Arizona (USA), Florida (USA), and the province of Quebec (Canada), and accelerated weathering in a QUV (fluorescent) weatherometer. Degradation was characterised by colorimetric and FTIR analyses. FTIR confirmed the importance of paint composition in the resistance of samples to weathering. Polymer sensitivity to UV radiation was clearly evident. An interpretation of discoloration in terms of either the energy received by the samples or the length of exposure is presented. Strong differences existed between the four weathering methods. Particularities of each method are discussed and recommendations regarding their application for effective testing are proposed. Overall, in addition to accelerated weathering tests, we conclude that it is necessary to test paints in an end-use environment for accurate assessment of their likely performance. This study confirms the multifactorial aspect of the weathering process.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Building materials and conservation · Cultural Heritage Materials Analysis · Infrastructure Maintenance and Monitoring
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Wood and Forest Sciences Department, Université Laval, Pavillon Gene-H.-Kruger, 2425, rue de la terrasse, Québec, QC G1V 0A6, Canada
References (42)
Show source-provided references
1. Freedonia, G. (2011). Wood & Competitive Decking, The Freedonia Group. Market Research No. 2718.
2. Weathering of wood
3. Davis, A., and Sims, D. (1983). Weathering of Polymers, Springer Science & Business Media.
4. Paint and coatings: A mature industry in transition10.1016/S0079-6700(96)00019-6 ↗
5. Photooxidative degradation of acrylic and methacrylic polymers10.1016/S0032-3861(99)00349-3 ↗
6. Photo-oxidative stability of paraloid acrylic protective polymers10.1016/S0032-3861(00)00327-X ↗
7. Prane, J.W. (1986). Introduction to Polymers and Resins, Federation of Societies for Coatings Technology.
8. Degradation of polymethyl methacrylate by ultraviolet light10.1021/j100824a019 ↗
9. Photolytic degradation of poly (methyl methacrylate)10.1002/pol.1963.100010321 ↗
10. Photodegradation of poly (methyl methacrylate) by monochromatic light: Quantum yield, effect of wavelengths, and light intensity10.1002/app.1990.070410513 ↗
11. Accelerated UV ageing studies of acrylic, alkyd, and polyvinyl acetate paints: Influence of inorganic pigments10.1016/j.microc.2015.07.009 ↗
12. 18th Annual meeting of the UK polymer degradation discussion group photofading and light stability of dyed and pigmented polymers10.1016/0141-3910(94)90095-7 ↗
13. Effect of titanium dioxide on chemical and molecular changes in PVC sidings during QUV accelerated weathering10.1016/j.polymdegradstab.2014.03.023 ↗
14. The search for durable exterior clear coatings for wood10.3390/coatings5040830 ↗
15. Analysis of test methods for UV durability predictions of polymer coatings10.1016/0300-9440(94)00525-7 ↗
16. The use of waterborne paints in contemporary murals: Comparing the stability of vinyl, acrylic and styrene-acrylic formulations to outdoor weathering conditions10.1016/j.polymdegradstab.2013.12.034 ↗
17. Accelerated degradation of water borne acrylic nanocomposites used in outdoor protective coatings10.1016/j.polymdegradstab.2016.03.002 ↗
18. Influence of surface modified nano silica on alkyd binder before and after accelerated weathering10.1016/j.polymdegradstab.2016.02.006 ↗
19. Crewdson, M.L., and Ketola, W.D. (2009). Best practices in weathering. Eur. Coat. J., 4.
20. Exterior wood coatings. Part-2: Modeling correlation between coating properties and their weathering performance10.1007/s11998-011-9331-4 ↗
21. Comparison of organic coating accelerated tests and natural weathering considering meteorological data10.1016/j.porgcoat.2006.09.036 ↗
22. Podgorski, L. (2004, January 27). Analysis of the wood coating ageing and prediction of the durability through calorimetric investigations. Proceedings of the Wood and Coating Systems for Wood-Cost E18, The Hague, The Netherlands.
23. Characterisation of accelerated ageing devices for prediction of the service life of acrylic-melamine/urethane thermosets10.1016/j.polymdegradstab.2011.04.013 ↗
24. Natural weathering performance of exterior wood coatings on pinus sylvestris and pinus radiata in Germany and New Zealand10.1007/s11998-005-0013-y ↗
25. Influence of climatic factors on the weathering of coated wood10.1007/s00107-002-0338-5 ↗
26. Comparison of wood coating durability in natural weathering and artificial weathering using fluorescent UV-lamps and water10.1007/s00107-014-0791-y ↗
27. Natural and artificial weathering characteristics of stabilized acrylic–urethane paints10.1016/j.polymdegradstab.2008.02.008 ↗
28. Evaluation of accelerated weathering tests for three paint systems: A comparative study of their aging behaviour10.1016/S0141-3910(01)00005-2 ↗
29. US and European finishes for weather-exposed wood-a comparison
30. Photooxidative degradation of poly(alkyl methacrylate)s10.1016/S0014-3057(99)00125-1 ↗
31. Photodegradation of acrylic resins used in the conservation of stone10.1016/S0141-3910(99)00048-8 ↗
32. (2010). ASTM G90 Standard Practice for Performing Accelerated Outdoor Weathering of Non-Metallic Materials Using Concentrated Natural Sunlight, ASTM.
33. (2013). ASTM G7 Standard Practice for Atmospheric Environmental Exposure Testing of Non-Metallic Materials, ASTM.
34. (2016). ASTM G154 Standard Practice for Operating Fluorescent Ultraviolet Lamp Apparatus for Exposure of Non-Metallic Materials, ASTM.
35. Which color differencing equation should be used?
36. UV ageing studies: Evaluation of lightfastness declarations of commercial acrylic paints10.1007/s00216-011-5369-5 ↗
37. Surface modifications of talcs. Effects of inorganic and organic acid treatments10.1007/s10853-010-5110-3 ↗
38. Organic coatings degradation: Comparison between natural and artificial weathering10.1016/j.corsci.2008.06.009 ↗
39. Weathering degradation of a polyurethane coating10.1016/S0141-3910(01)00166-5 ↗
40. Synthesis of nano-hematite for possible use in sunscreens
41. A hydroxyapatite-Fe2O3 based material of natural origin as an active sunscreen filter10.1039/C4TB00984C ↗
42. A climate index for estimating potential for decay in wood structures above ground