Waterproof Insulation Seal - What it does: Penetrates joints and cracks to seal cracked surfaces and form a waterproof protective coating on adjacent areas, reducing leaks and protecting nearby materials. - Temperature performance: Resists high and low temperatures without sagging, dripping, cracking, or flaking; suitable for a wide range of working environments. - Material and safety: Made from environmentally friendly, non-toxic materials with an elastic rubber formula that won’t crack, peel, or harden; non-damaging to skin or surfaces, and resistant to dust, chemicals, and moisture. - Wide range of applications: Effective for cracks, gaps around window sills, bathroom seals, walls, roofs, and exterior walls; compatible with all common building materials and suitable for sealing gaps and joints. - Practical use scenarios: - Sealing a leaky bathroom seam around a tub or shower. - Blocking drafts and water intrusion at exterior window frames. - Sealing roof edges or wall penetrations to stop exterior seepage.