Is aluminum glue water resistant?

Most kinds of aluminum glue are water resistant. Aluminum bonding is as common outdoors as it is indoors. Both bonded materials are exposed to the elements. Since that is the case, manufacturers have developed waterproof glue. Aluminum glue is also designed to withstand various levels of moisture, meaning it can be wet all the time, especially during winter and humid seasons. There are also some aluminum adhesives that are for indoor use only. They are less resistant to water. Make sure that you buy all-weather aluminum glue in order to withstand any kind of water exposure if you will be applying it outdoors.