Specification: Material:Mud glue Item Form: Putty Size:13.5*6.5cm/5.31*2.56inch Description Type Waterproof Sealant Mastic: A type of waterproofing sealant, which quickly seals all kinds of holes and gaps: rat hole, cracks, pipe hole, wall hole.etc. Making it the ideal solution for filling holes and cracks in pipes to prevent various leaks, such as rainwater seeping back indoors. Highly Flexible: Featuring high plasticity, this sealant can be molded into various shapes, including round, square, or long. This flexibility guarantees a perfect fit for any hole or crack, making it incredibly easy and convenient to use. The mastic sealant contains a cooling adhesive component that quickly hardens in the presence of wind, ensuring a speedy and efficient sealing process. Easy to Use: First clean the gaps that needs to be sealed to ensure that there is no dust, water and other debris. 1. Reshape the clay according to the size of the holes/gaps. 2. It can blend perfectly with the surfacing. Just leave it for a few hours to air dry. Repair Sealing Clay: Waterproof repair sealing clay is a fast solution to fill holes or cracks! Perfect protective finish for flat roofs, metal roofs, sloped roofs, planter boxes, foundations, sheds, basements, metal, wood, concrete and more. Widely Used: The waterproof sealant mastic putty can be used for wall repair and crack filling repair (such as air conditioning pipes, rat holes, etc.), can also be used for various pipe fittings, equipments installation, fixing and repair. Package Includes: 5/10/20PCS * Type Waterproof Sealant Mastic