Using structural foam on cored hulls

Chris Harmon — Thu, 08 Jan 2026 04:42:29 +0000

This is my favorite subject, I did soft hull sides 36 feet that was 5 feet to chine on both sides.

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Restoring old fiberglass laminates with rotted cores

Chris Harmon — Thu, 08 Jan 2026 04:39:11 +0000

I use a few different methods to restore threads in hatches, decks, gunwales, transoms. You know all the little threadsets that are ripped out, or just a nasty screw hole you want to use. I use Shur-lock sandwich core inserts, blind threaded inserts on decks. I use shallow expandable thru thread sets on fiberglass and well nuts. Very often I will wrap a stripped screw in fine 1/2 hard copper wire. I use a release agent on the screw, then wrap it in wire, trim the excess and sink it in wet epoxy filling my ripped out hole. Come back next day and unscrew the fastener. you have a pretty solid threadset.

Hanse 505

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Blog – Injectadeck Marine Structural Foam DIY

Using structural foam on cored hulls

Restoring old fiberglass laminates with rotted cores