Originally Posted by Pleiades

Superglue works just as well as epoxy.

On the farms round here it is common place to use acid-core brazing solder to fill pits in hydraulic ram rods as a cheap fix to keep machinery going. It's pretty universal practice amongst tight-fisted Norfolk farmers and the technique works just as well on motorcycle forks or any other hard-chromed sealing surface. Pop into an agricultural engineers and ask.