Leveling seam sealer w/ dispenser?

I have searched a number of threads but cannot find reference to a self leveling seam sealer which comes complete with dispenser / applicator doo-dad.

I am looking for 2 - part epoxy type preferably thick as molasses but still self leveling.

Doing my drip rails. I cleaned them out with thin wire wheel, sand blasted them bare and epoxied them. So they are ready for sealer.

Thank you!