Many applications for adhesives and sealants require high strength and durability at low temperatures. Many of these same applications also require resistance to thermal cycling between high and low operating temperatures. Unfortunately, the properties of adhesives and sealants at low temperatures are not as well studied or documented as at high temperatures. (For high temperature adhesives, the reader is guided to a recent Specialchem4adhesive article, "Additives for High Temperature Structural Adhesives", March 19, 2003).[1]
These low temperature environmental effects are significant factors that contribute to a system's durability and life. This paper will discuss the characteristics of adhesive joints exposed to low temperature thermal cycling and suggest methods of improving the resistance of adhesives and sealants to these conditions.
Applications Requiring Low Temperature Properties
Typical examples of adhesive and sealant applications requiring low temperature performance include.