Dbraid

I have an older ABS hulled sailboat. Has anyone strengthened the entire hull with Devcon Plastic weld and fiberglass fabric?

mfr02

I suspect that the answer is "No" because the thinking will be that if you add enough strengthening, it will have gained enough extra weight where it isn't wanted to stop it being a good yacht.
Some plastic hulled yachts get some extra bracing in the areas where it is needed, like around the fin box.

Dbraid

Mfr2, thank you for the response. In other words, I just need to live with the ABS embrittlement and repair as needed.

mfr02

A couple of years ago I got a cheap second hand yacht. I bought it as a pars mine for another one. When I tried it, it worked so well that at the start of this year, due to not being able to play boats, I've slapped some fresh paint on.
What you might have there is a parts mine for something else. usually, when a plastic hull is time expired and really gone as brittle as you think, thats it. It might be a good idea to see how much bubble wrap you can insert. If anything 'orrible happens out on the water, it should be retrievable.

satlite440

you could do some hobby grade 3/4 oz glass cloth from a hobbie shop and marine resin and glass it in 2 layrs would fill it fine and not add tones of weight as long as you went easy on the resin