Seriously, have some JB Weld onboard. Great stuff. We have a fiberglass tape-reinforced JB Weld repaired pipe nipple on our exhaust system that has now gone halfway around the world. It started as a temporary repair and just seemed so secure that we left it alone even though we have the spare part onboard.
Heading back to Lake Ontario for this summer. Now in Bermuda and heading to Long Island Sound in the first week in May. Then on to the Hudson and the Erie Canal.