First, in actual life, the protective measures taken are different because of the different uses of the FRP grating. For example, use it in areas with high water levels because it has less density and lighter materials, so it is necessary to do anti-corrosion measures such as rainwater runoff.

Second, in the construction and repair of the building construction process, it must be done in the use of numerical and fiber cloth for seven or eight hours of curing, generally they are very short, so it is not easy to guarantee its quality.

Third, the underground pipeline detection equipment is more concerned with metal. The general price of non-metal is not practical. If it is a FRP grating, it is not easy to detect and it is easy to cause damage during excavation.

Fourth, its UV protection ability is poor, so it is usually made of lipofuscin or UV absorber on its surface to resist aging, but its longevity will also affect its service life.