Sealants seal gaps and joints in a number of materials and are also referred to by several other names, most commonly mastic and silicone sealant. They are essential in construction projects for ensuring airtight and watertight seals, both indoors and externally. Common applications include sealing gaps around windows and doors , filling cracks in walls and floors, and bathroom and kitchen sealing applications. Available in various formulations, sealants provide durability, flexibility, and resistance to environmental factors, making them a crucial component for a professional finish in many projects.