The temperature tolerance limit of FRP daylighting panel is - 40 ~ 120, within this range, FRP daylighting panel can be used safely and normally, but if beyond this range, FRP daylighting panel can still be used, but its service life will be reduced in different degrees!Under the condition of non open fire, the FRP has no obvious change before reaching 150. When the temperature exceeds 150 and reaches about 175, there is no obvious change in the color of FRP lighting plate, but the light plate is slightly softened. At this time, it is the thermal deformation temperature of FRP lighting plate.
The flame-retardant daylighting board has the same characteristics as the ordinary lighting board after heating under non open fire conditions, but it is easier to yellowing than the ordinary lighting board. Under the condition of open fire, the secondary flame retardant daylighting panel has slight combustion when encountering open fire, and it will extinguish itself quickly after leaving the fire source. It is more difficult to burn the first grade fire-retardant lighting panel than the second-class flame-retardant when exposed to open fire, and it is easier to extinguish after leaving the fire source.