Types of sealants
One type of sealant is a viscous substance with little to no flow characteristics and stays wherever it’s applied. Another type is runny and thin, which allows the sealant to penetrate substrates through capillary movement. Anaerobic acrylic sealants, which are often called impregnants, can cure even without air. Surface sealants, on the other hand, require air.
Sealants are often made from organic elastomers, but they perform distinct functions based on their formulation. They generally fall between extremely low-strength versions like waxes, putties and caulks and adhesive-derived, higher-strength types and coatings.
The different types of sealants are almost countless, but some of the most common include: