You will need to consider several factors such as elements that the adhesive my be exposed to and wuld have to withstand. Also, you will need to consider desired strength, desired elasticity and the method of placing the adhesive.

All structural adhesives come with a load rating-- this is the first consideration. The next is the heating process required, if any. This can be cumbersome and may require specialized equipment to apply to structural standards. Finally, since the accident in the Boston Tunnel, many building codes have additional requirements.

Spiders actually spin two kinds of webs: sticky and nonsticky. The sticky web has an adhesive used to trap insects, the nonsticky web has no adhesive and is used for structural supports and traveling by "wind ballooning".

There are several different companies that make structural adhesives. Brands include Plexus and Scotch-Weld.

If it's a small hole, you might be able to get away with some 3M structural adhesive. Most of the time you end up installing a new pan.

adhesive