Adhesives are “substance[s] capable of holding at least two surfaces together in a strong and permanent manner.” Sealants are “substance[s] capable of attaching to at least two surfaces, thereby, filling the space between them to provide a barrier or protective coating.
Description
Specification
Sealants are materials that prevent fluids and other substances from passing through surfaces and mechanical joints. Sealants also block air leakage, insects, dust, sound, and heat.