The specimens were subjected cyclically to light for 102 min followed by a spray cycle of 18 min by reverse-osmosis deionized water for a total exposure duration of 988 h. The chamber was maintained at a temperature of 38±3 °C and a relative humidity of (50±10) %, with the blackstandard temperature at 65±3 °C. Samples were picked at durations of 72, 168, 504, and 988 h of weathering for analyses.