Replacing mastic on a uneven pool deck

Apr 22, 2018
Wayne, PA
Hi all,

the mastic around the coping bricks was really ratty, so we started on the way to replacing it. I have most of the old deck-o-seal removed. Next step is cleaning it out and replacing it with fresh stuff.

The problem is that in some places, the pool deck is uneven with the coping. How do I re-seal this with a liquid sealant, and still have it follow the contour/slope of the uneven-ness? Basically I feel as though the new deck-o-seal will run down flat and just blob up on the pool deck rather than following the slope between the deck and coping.

Does that make sense? Attached are pictures which may help explain better.