I have an old Outcast pontoon boat and the bladder in one of the pontoons had a blowout yesterday. I was not on the water at the time. I hung the deflated boat on the garage wall over the winter and I think the inner bladder shifted and this may have caused the failure . I don't know if the bladder is vinyl or urethane and the material appears stretched . I cut out the thin material and now have a small ( 2 inch ) hole in the bladder. Can anyone suggest a suitable patching material and glue to fix the tear ?