Slow leaking pontoon repair - Sealant?

[RiverRat77]

I have a small leak in the seam of my FC4. Thankfully, I can use my wife's matching tube which doesn't leak but I'd like to get mine repaired. Its right on the seam on top of the bladder, right in the crease. Could I just caulk that and seal it or use Aquaseal like you would caulking a bathtub or whatever?
[signature]