What makes a FRP tank corrosion-resistant and strong? Actually, it's mostly the fiberglass. As a glass fiber used for frp, its tensile strength is a very important physical index, the strength of the block glass is not high, it is easy to break, and its tensile into glass fiber not only to obtain flexibility and strength is greatly improved. The reason for the high strength of GLASS FIBER: The micro-crack hypothesis, the theoretical strength of glass depends on the attraction between molecules or atoms, its theoretical strength is very high, up to 200 ~ 1200 KGF / M2, but the measured strength is very low, this is due to the presence of micro-cracks of varying amounts and sizes in glass or fiberglass, which greatly reduces strength. The microcracks are distributed in the whole volume of the glass. The strength of glass fiber is much higher than that of bulk glass. This is due to the fact that glass fiber is formed at high temperature to reduce the heterogeneity of glass solution, which reduces the chance of micro-cracks and the small cross-section of glass fiber, with the decrease of surface area, the probability of microcrack is decreased, and the strength is increased, which is the reason why the strength of FRP tank is high.