Even when used under water, these adhesives maintain their strength. The most weather- and chemical-resistant structural adhesives, epoxies tend to work especially well on metals.

Two-part epoxies must be mixed. The size listed is the combined total of the two parts.

For putty adhesives, slice off the required amount, then knead it together to form a moldable adhesive.

WaterWeld and 11801, as well as one-time-use packets, can be applied to wet surfaces or under water.