Scalable industrial production line establishment and performance investigation of strong adhesion commercial radiative cooling coating

The passive daytime radiative cooling (PDRC) is a promising approach to address the global warming issue and mitigate urban heat effect. However, the current research on PDRC lacks of scalability and systemization for the industrial production line and remains in the laboratory stage. In this paper, we propose an eco-friendly and green-recycle production line for the industrial production of strong adhesion radiative cooling coating (SARCC). The production line comprises of four primary equipment: dispersion, sanding, paint mixing, and canning. The production capacity can achieve of a maximum 4 tons per day with the payback time money of 0.68. Considering the practical application demand, the SARCC obtain the excellent balance of overall performance between radiative cooling and adhesion for real utilization. The produced SARCC exhibits a maximum reflectivity of 90.24 %, an emissivity of 90 %. The maximum adhesion of SARCC is measured at 4.1 MPa, which is 64 % higher than the 2.5 MPa standard set by the international standard. The outdoor cooling performance of SARCC is significant and obtained the maximum subambient temperature of 4.5 °C. Additionally, the average daytime temperature of SARCC can reduce by 3.4 °C with compared with commercial white paints. The application of SARCC can realize 23.7 % energy saving potential in Guangzhou throughout China, which is equivalent to reduce 8.46 kg/m² of CO₂ emissions. The This sustainable and recyclable production line for radiative cooling materials offers a practical and realistic strategy for the further implementation of radiative cooling materials in commercial applications.