Ignition Properties of Panels Coated with Finishing Fire-Retardant Paints under External Radiation

By utilizing the self-designed test platform to carry out tests on the edge ignition time and center ignition time of wooden panels coated with finishing fire-retardant paints to different fire-retardant degrees and analyzing the factors affecting the edge ignition time and center ignition time, this paper proposes the indicators for the assessment of fire-retardant properties of wooden panels coated with finishing fire-retardant paints, i.e. the edge ignition time and the center ignition time. It is indicated by research results that the paint quality, coating process and fire-retardant properties of wooden panels coated with finishing fire-retardant paints can be comprehensively assessed in terms of these two indicators; the edge ignition time can be used for auxiliary assessment of the quality situation of finishing fire-retardant paints, and the center ignition time can be used for assessment of the coating process of finishing fire-retardant paints.