First, the impact resistance of acrylic is very strong, 100 times that of glass and 16 times that of tempered glass, and the thickness of acrylic sheet can be over 800mm, and the safety factor increases exponentially. The swimming pool needs to withstand the dynamic pressure and wind pressure caused by water pressure, people flow and waves. This pressure is dynamic and uncontrollable. As a flexible polymer material, acrylic has excellent strength and toughness and resistance to bending and fracture. It is very suitable for this A complex stress environment. Tempered glass is relatively brittle and faces a complex pressure environment. Coupled with the influence of a series of outdoor environments such as sunshine, climate and temperature difference, the probability of nickel sulfide crystal expansion increases, which will increase the risk of self-explosion.