| If it was me I would fill the gap with epoxy putty and scrape it with a rounded tool to give a nice fillet then paint it over with two or three coats of resin.
If you can still get to the inside to put some sort of dam for the putty you will fill the gap better and should get a seal with the putty. The resin will then be the icing on the cake.
You should be feeling quite proud of the line of that shaft, it looks perfect! |