Good item!Fill the old hole with your choice of polyester/epoxy goop, then redrill and fasten with tri-grip pop rivets. These rivets resist pullout well & install with a regular pop rivet tool:
https://www.amazon.com/s?url=search-alias=sporting&field-keywords=Tri-Fold+rivets
IMHO, adhesives are a bad idea for the coaming. Because of possible future replacement, or paint not adhering, I don't use caulking of any kind.I have to replace a coaming for a vanguard Sunfish. What is the best method to do this? I have an inspection port just behind the existing broken coaming. I can drill out the rivets but the last three are not accessable because of the foam. Should I use stainless bolts for the ones I can get to and use rivnuts for the last three? Or should I just put 5200 under the coaming to secure the ends to the deck?
Here's the link:da pal, I went through this last year and have a long thread about it with photos. If you search thread title ‘Power washer damage’ (sorry, not sure how to copy link here) there’s lots of good info and advice from many here, including the proper rivets listed on page 2.
FOUND:I subscribe to the KISS principle when dealing with the coaming. You could probably run a piece of fiberglass across the holes then 5200 the coaming to the deck