WP Active masterbatch is a core material independently developed for the production of cement-based penetrant crystalline waterproofing coating based on advanced technology and according to the latest Chinese standards. In addition to the crystalline self-healing component, the multiphase expansion component and the flocculation water retention component are combined, and the nano-scale active dispersion factor can effectively improve the working performance of the newly mixed coating and the mechanical properties and deformation properties of the hardened coating, and effectively avoid the dry shrinkage cracks of the coating.