GB/T 37126-2018 specifies a series of test methods for evaluating the performance of structural sealants, which are key materials used for structural bonding in curtain walls and other engineering applications. These methods comprehensively assess the long-term durability of materials under actual complex environmental conditions, such as their tensile adhesion, shear properties, fatigue resistance, creep resistance, and compatibility with adjacent materials after exposure to harsh conditions like salt spray, acid spray, cleaning agents, and water-ultraviolet irradiation. Conducting these tests typically requires specialized instruments, including universal material testing machines for load testing, salt spray test chambers for simulating corrosive environments, UV aging chambers for aging tests, and related detection equipment for observing compatibility changes.