Special putty for external insulation of glass fiber cloth

With the vigorous development and application of external wall thermal insulation technology, people's design of external wall thermal insulation system has gradually shifted from the early rigid anti-cracking technical route to the gradual layer-by-layer flexible anti-cracking technical route. Because the thermal insulation layer generally has light density and low strength, Due to the instability of its external dimensions caused by the deformation of temperature and humidity, it is required that the matching plastering layer, putty layer and coating layer must be able to effectively adapt to this change. It is commonly recognized that the flexible polymer mortar is used as the mortar for external wall insulation, and corresponding standards have been formulated and promulgated. In addition to the performance of the thermal insulation system, it must also be able to meet the dynamic stress changes from the thermal insulation system.