A sealant is a material designed only to fill up a space. The spaces can be joints, gaps or cavities that occur between two substrates. ex : The space between a bathtub and wall.
The primary function of a joint sealant is to maintain a positive seal between the sides of a joint, which may be subject to movement.
Sealants are used to close small openings that are difficult to shut with other materials, such as concrete, drywall, etc. Uses of sealants vary widely and sealants are used in many industries, for example, construction, automotive and aerospace industries.
The fast growing emerging markets, such as China and India, are supporting a significant portion of the incremental demand for adhesives and sealants globally.