The waterproof sealant spray offers a strong bonding effect and helps prevent leaks. It can be used to seal and repair damaged surfaces quickly and effectively. Powerful Effect: This waterproof sealant spray bonds easily and rapidly to most surfaces in need of repair. Protective Layer: The spray forms a durable, flexible protective coating on surfaces. It is waterproof, adheres well even on damp surfaces, remains clear, and resists yellowing over time. Pollution-Free: Formulated with acrylic, polyurethane, butyl rubber, and polymer copolymer, this leak repair spray is non-toxic, odorless, and safe for use. Wide Application: Suitable for sealing water seepage from cracks, window sills, bathrooms, walls, roofs, and exterior walls. Specifications: Material: Acrylic, polyurethane, butyl rubber, polymer copolymer, additives Size: 30ML: 7.6 x 3 x 3CM / 2.99 x 1.18 x 1.18in 100ML: 12.8 x 3.7CM / 5.03 x 1.45in Brush: 13.4 x 1.4CM / 5.28 x 0.55in Package List: 1 x Waterproof sealant 1 x Applicator brush