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A caulking sealant has three basic functions: filling a gap between two or more substrates; forming a barrier through the physical properties of the sealant itself and by adhesion to the substrate; and maintaining sealing properties for the expected lifetime, service conditions, and environments.
While most consumers might not be able to visually differentiate between one caulk or sealant and another, product formulators and chemists understand the tremendous diversity between products.
