Thermal insulation performance and service life prediction of some commercial solar heat-reflective coatings under natural weathering exposure
DOI:
https://doi.org/10.54939/1859-1043.j.mst.IMBE.2025.186-192Keywords:
Natural climate exposure test; Weathering resistance; Heat-resistant paint; Thermal insulation performance; Protective capability; Service life prediction.Abstract
This paper presents the results of natural climate-exposure tests conducted by Joint Vietnam-Russia Tropical Science and Technology Research Center on selected heat-resistant paints intended to reduce heat in warehouses, factories, and fuel storage tanks under Vietnam’s tropical conditions. The paints examined include Intek, PCG Asuza AS132, and Dulux. The natural-exposure methodology was developed based on the JIS K 5675:2011 and TCVN 8785-2:2011 standards. Using a 24-month dataset collected from outdoor exposure, we evaluated the thermal insulation performance, decorative properties, protective capability, and service life of the three paints. The findings provide reference information for selecting heat-resistant coatings with potential for practical application in military settings.
References
[1]. H. A. Nguyen, “Climate and Solar Radiation in Northern and Southern Vietnam”, New Energy Journal, Vol. 47(1), pp. 12–18, (2020).
[2]. Davidson S., “SkyCool – extraordinary paint on a hot tin roof”, ECOS (CSIRO publication), Iss. 119, p. 12, (2004).
[3]. John Pockett, Martin Belusko, “A Review of Heat-reflective Paints”, Sustainable Energy Centre, University of South Australia, Mawson Lakes SA5095, (2010).
[4]. T. V. Nguyen, P. H. Dao, T. A. Nguyen, V. P. Mac, T. V. Do, T. M. L. Dang, M. N. Ha, H. N. Trinh, T. L. Le, D. L. Tran, T. D. Nguyen, P. N. Tri, “Effects of nano-TiO₂ and nano-SiO₂ particles on the reflective and weathering durability of solar heat reflective coating”, Journal of Photochemistry and Photobiology A: Chemistry, Vol. 442, 114752, (2023).
[5]. T. V. Nguyen, P. N. Tri, T. D. Nguyen, R. E. Aidani, V. T. Trinh, C. Decker, “Accelerated degradation of water borne acrylic nanocomposites used in outdoor protective coatings”, Polymer Degradation and Stability, Vol. 128, pp. 65–76, (2016). https://doi.org/10.1016/j.polymdegradstab.2016.03.002
[6]. T. V. Nguyen, X. H. Le, P. H. Dao, C. Decker, P. N. Tri, “Stability of acrylic polyurethane coatings under accelerated aging tests and natural outdoor exposure: The critical role of the used photo-stabilizers”, Polymer Degradation and Stability, Vol. 128, pp. 65–76, (2016).
[7]. C. C. Nguyen, H. L. Nguyen, D. M. Le, N. T. Phan, V. D. Dang, “Outdoor weathering for determination of decorative and protective properties of some emulsion paints being used in Vietnam's tropical climate”, Journal of Tropical Science and Technology, No. 25, pp. 81–94, (2016).
[8]. M. T. Chu, “Choosing steel protection paint products suitable for tropical climate area”, Journal of Tropical Science and Technology, No. 25, pp. 95–104, (2016).
[9]. TCVN 5670:2007 (ISO 1514:2004). “Paints and varnishes – Standard panels for testing”.
[10]. JIS K 5675:2011. “High Solar Reflectant Paint For Roof”.
[11]. TCVN 8785:2011. “Paint and coating for metal protection – Method of tests – Exposed to weathering conditions”.
[12]. TCVN 2101:2016 (ISO 2813:2014). “Paints and varnishes — Determination of gloss value at 20°, 60° and 85°”.
[13]. ASTM D2244-16. “Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates”.
[14]. TCVN 2097:1993 (ISO 2409:1992). “Paints and varnishes – Cross-cut test”.
