I imagine it is https://www.homedepot.com/p/DAP-Sil...-Masonry-Sealant-12-Pack-7079808675/205030334
I'm sure they sell single tubes of some brand. I am sure Lowes, Amazon and most hardware stores have a version also.
I would remove as musv of the old as possible for a neater finished look and better adhesion.
I'm sure they sell single tubes of some brand. I am sure Lowes, Amazon and most hardware stores have a version also.
I would remove as musv of the old as possible for a neater finished look and better adhesion.