ADHESIVE/SEALANTS are formulated primarily to seal and protect rather than create strong bonds even though most have some bond strength to adhere to the surfaces to which they are applied. Sealants are created to resist water or moisture, temperature, sunlight and other environmental conditions. Most sealants are designed with some flexibility to allow for some joint movement. Sealants are made from various materials each of which will perform best in certain applications. The following is a list of the most common materials available.