Durability and Long Term Performance and Temperature Resistance

Most adhesives will operate within the range -40 °C to 120 °C and speciality grades will operate to higher temperatures. A room-temperature-vulcanising silicone will often be suitable up to >250 °C. On the other hand a standard ethyl based cyanoacrylate will only operate to about 90 °C.

A significant point to consider when selecting an adhesive is its moisture or humidity resistance as water will invariably reduce the strength of adhesives. For this reason, the technical data of an adhesive frequently lists the durability of bonds in humid environments after prolonged time periods. Normally charts are included that list the percentage of initial resistance retained by the adhesive bond over time under known humidity conditions.

Durability of adhesives is discussed in more detail in Section 9.1.

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