What is a really strong adhesive?

Super Glue and two-part epoxies are two types of adhesives that are strong when used for the proper applications. Since different types of applications affect how well adhesives perform, it is important to choose the correct adhesive for each job.

Super Glue and related adhesive brands are known as "instant" glues and provide a very quick bond between surfaces, but they become brittle easily and can dissolve when exposed to water, certain chemicals and temperature changes. Two-part epoxies are flexible and waterproof, and they resist temperature changes. However, they require significant initial surface preparation to ensure a clean bond, and they take a long time to cure.