I have steps leading up through my retaining wall and a few of the stones that cap the steps have come loose.
Looking at the place where the steps were, there appears to be some kind of caulk-like material on the stone cap and the base where it sat
Question
Is this some kind of landscaping caulk? Would this product be an example of this kind of caulk?
Extra Questions:
If this some kind of caulk, should I continue to use it? Will it last for several years? Or would it be better to buy some kind of Mortar (type n?) and use that to keep the stone steps in place?
Do you think there's enough surface area (the stone base, not the backfill of stone gravel) to adhere to that my steps should be ok?
Thanks in advance for any answers / insights.
Best Answer
No, that is an adhesive (glue) of an unknown type. It looks like regular construction adhesive to me.
Yes
I feel that the reason for the failure was poor original application. Also, since the original adhesive type is unknown, that also may have contributed if it was not a glue for exterior use.
Use the glue in your link but use way more of it than was used for the original bond, and try to scrape off all the old glue and clean all the mating surfaces first.