This resin has moderate viscosity, good wettability to fiberglass fabrics. It meets the thickening requirements of prepregs under different ambient temperatures. The prepregs made from this resin have a long storage period, low styrene odor volatilization, and can be easily applied to pipe walls under different temperature environments. After curing, the product has high mechanical strength, good toughness, and excellent heat resistance, water resistance, corrosion resistance and weather resistance. It is suitable for CIPP UV curing and CIPP hot water inversion method to repair pipe linings.