Has anyone tried using this product on an Aliner. I had a small leak around one of the skylights of our 2002 model expedition. On the advice of our local RV dealer I used Geocel Proflex RV sealant. I sealed around all the skylights with it. Noticed the other day one of the other skylights has a small leak. Rather than buy another tube of Proflex I thought I’d try flex seal tape.