Pidilite Dr. Fixit Sure Seal is a sealant that is used to seal gaps and cracks in various types of construction materials. It is a one-component, water-based, acrylic sealant that is easy to apply and dries clear. It is a quick-drying product that can be used for sealing gaps and cracks in concrete, masonry, and other construction materials. It is also resistant to water, weathering, and UV rays.