On 16 Feb 2007 16:21:58 -0800, "
wrote:

On Feb 15, 10:44 pm, ray lunder wrote:
Hi, is there a repair epoxy you can apply underwater for emergency
patches? There used to be a two part product called safe zone or
something but it costs $100 for two handfuls. Has anyone actually used
it? You mixed it on deck, grabbed a handful in your rubber glove, dove
in and smeared it on? Did it work?
Thanks as always.

There are a number of products out there. When I lost the end of one
of my prop shafts in Samoa I did some experimenting with the several
waterproof epoxies and found that Ace brand waterproof epoxy putty had
the best strength, hardness and adhesion of the lot that I could lay
my hands on when set in seawater. I used it to secure a propeller to
the shaft and it lasted until I got to New Zealand. Not bad. I've
also used Selley's Knead it Aqua underwter with okay results. All of
the products I used set up much better in air than in sea water, but
the ones that were best in the air were not the best in the water...
Cost should be less than $10 a handful, and a handful goes a long
way. I'm told that splash Zone is the gold standard in these things
but have not used it myself.

-- Tom.

Thank you, wow, that's $10 per ounce for the product if it's the ACE
hardware store brand. (us chain store). Fine if you only need a
smidgen but not practical for an emergency hull breach.
Glad you made it to NZ. We had a somewhat similar problem with a
folding prop that went fine in forwards but had no reverse, which made
for an exciting approach the first time we docked, which was of course
when the problem presented itself.
The owner thought the transmission was the problem but it turned out
to have a sheared lumen shaped chuck in the key way which locked the
prop to the shaft. (forget the correct term for this). Thanks again.