I need to install additional mushroom head
thruhulls in a cored area of the hull
. Above the waterline, but still need to do it right.
I know I need to remove the core
material between the skins and replace with thickened epoxy
, but how far deep do I need to dig it out ? This will be a 1 1/2 inch thruhull, so I'm guessing the hole will be 2 inches or so. I thought I'd seen mention of this on the WEST Epoxy
site, but I don't see it now.
A guess would be that I should go out to maybe half the flange of the thruhull, but I'd appreciate hearing what others would say.