Hi,

Have purchased a few old railroad ties that I plan on using
to define some garden area borders.

Being quite old, and previously used, they have several substantial cracks
(checking the right term ?) in them.

Thought it would be a good idea to pour "something" in the cracks to help
hold them together, and as a secondary
consideration to keep moisture from getting inside them and causing more
cracks or enlarging those already there.

So, what should I use to hopefully help hold them together ?

My first thought was epoxy, but I doubt that it is fluid enough to really
get inside deeply.

Would Gorilla Glue bond surfaces with perhaps 1/16 - 1/8 inch gaps ?

Or,... ?

Thanks,
Bob