XMSJ | Caulk Roofing Waterproof Sealant Angle Crack Repair Cement Durable Plugging Material Leak Fixing Maintenance Easy-Use Solution

the product is updated, the new and old packaging will be shipped randomlyNote: In response to market demand, the product and packaging will be upgraded periodically, and the new and old packaging will be shipped randomly. Both of these bags are genuine (product quality will not change or upgrade), so please feel free to use them.Product description: Crack repair deviceThis product can automatically flow into the depth of cracks, with high elasticity, crack resistance, frost resistance and sunlight resistance, strong adhesion.Simple structure. After opening the product package, it can be automatically leveled by pressing directly into the crack.Different from ordinary water-based waterproof coating, this product can go deep into the root of cracks and completely solve the problem of water leakage.