I cracked my starboard formula wood about a month ago and got plenty of good advice via this forum about how to deal with it. So yesterday I decided to tackle it and what I unearthed seems a bit interesting...
Original damage thread.
This board isn't going to stop any traffic with its looks so I've taken the stance of repairing to make solid(ish) rather than looking good. To be honest I don't dislike the battle scared look.
Firstly the crack on the rail seems straight forward enough, no surprises. I've cut out the crack back to the solid core and am going to feather out the damage a bit more then _layer_ it up and see how it holds.
Damage

Most damage cut away. Almost ready for repair.

Secondly the crack on the deck. As pointed out in the
Original thread this is in front of a dodgy looking repair. Well if it looks dodgy in the pic, imagine what it looks like once you take a blade to it!? No need to imagine I have pics.
Damage

Damage cut away in perspective with the board.

Damage cut away close up.

What you can see in this last photo from left to right is:
Previous repair (Grey), solid resin with some matting.
What looks like DIY expanding foam!
The shadow area is a gaping crevasse. I assume this is where the original core has been dissolved by the expanding foam.
You can just make out the white core, the edge of which looks melted.
I've been naively stitched up with this board. however I am resolved to see it back out on the water even if just for one season so I am not looking to give this board a repair that will out live my grandchildren, but I don't want to redo it after each time it's sailed.
So should I remove the bungled repair (Grey bit) and fill the hole with some substiture core?
Or cut out the expanding foam and fill with some substitute core?
Or leave repair as is, fill the thin gap?
Then glass it in.
Any comments welcome,
Dan