On Thursday, 6 February 2020 10:45:53 UTC, soup wrote:
Gorilla do a five minute epoxy that Gorilla state can cope with moderate
amounts of water.
So would be okay as a mid stone in the top of the wall, end stone (no
mortar or other stones sheilding it ][from that side]) not so much.

Bound to be a fully waterproof epoxy out there.

On 06/02/2020 07:17, Brian Gaff (Sofa 2) wrote:
What really? Outside?

Brian


The original Gorilla glue which is set by water is waterproof once set. I have used it for similar applications.

Jonathan