Caulking and Sealants

Caulks are basically a rubber-like paste that sticks to a variety of surfaces and stays flexible after drying.

Sealants are materials that are initially fluid or semi-fluid, placed between two opposing solid materials, become solids themselves (by solvent evaporation or chemical reaction), bond to the surfaces they are applied to and accommodate joint movement.

In waterproofing applications caulks and sealants use their ability to accommodate joint movement to seal out the intrusion of water, wind, pollutants, dust and insects. Caulks and sealants are used wherever a permanent seal is desired. Especially important between dissimilar building elements, proper caulking or sealant installation can protect valuable assets and prevent costly liabilities. Sealants are generally considered to deliver appreciably higher performance than Caulks — while they both serve the same basic purpose.