apply epoxy underwater?

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.

On Feb 16, 12:44 am, ray lunder <sdf...@lkj.com> 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.

Years ago we used Splash Zone.for under water hasty patches.
good stuff........ yes expensive. But when ya need it what else is
going to kick off and cure uderwater.
Bubble Head Bob.

On Feb 15, 10:44 pm, ray lunder <sdf...@lkj.com> 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.

On 16 Feb 2007 16:21:58 -0800, "tsmwebb@" <tsmwebb@>
wrote:

>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.

That is impressive.

What happened to the shaft?

On Feb 16, 3:02 pm, Wayne.B <waynebatrecdotbo...@m> wrote:
> On 16 Feb 2007 16:21:58 -0800, "tsmw...@" <tsmw...@>
> wrote:
>
> >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.
>
> That is impressive.
>
> What happened to the shaft?

It's a bit of a mystery to me. We spent the night hove to off Apia in
a front which may have caused the geared Gori Saildrive prop to hammer
a bit as it folded and unfolded, but in any case, when we came to the
dock the prop separated from its hub. It was a pretty decent landing
and I didn't actually notice the prop was gone until we attempted to
leave the dock, but my speculation is that it fell off when I put the
engine lightly in reverse. At any rate, the hub and hub nut were
still on the shaft at this point, but when I removed the hub nut all
but about 1/4 turn of thread came off with the nut. Why? I don't
know. The usual suspects or crevasse corrosion or improper torque
come to mind. The former seems more likely to me as I used a torque
wrench to tighten the nut the last time I'd changed the zinc, but...
It is a failure that is fairly common to Yanmar Saildrive shafts. I
put a two bladed fixed prop on with the nut pretty much held in place
with just the epoxy and good will and it held all the way to New
Zealand. For which I am very grateful and somewhat amazed as we had
the boat up to 18 knots at one point and weathered a gale along the
way.

-- Tom.

"tsmwebb@" <tsmwebb@> wrote in
news:1171835185.442959.44950@p10g2000cwp. :

> I didn't actually notice the prop was gone until we attempted to
> leave the dock

I have a friend in Sumter, SC, who did something like that with his
airplane. He flew from Sumter, in the midlands of SC, to Greenville
Airport, NW corner of SC, in his little 2-cylinder Champ 2-seater with
the wooden prop.

As he came in on final at Greenville, he let off on the throttle and felt
the airplane "shudder", as he put it. He fed it a little power and flew
on into the airport thinking it had dirt in the tiny carb again, getting
off the busy runway short in such a short landing plane and taxied around
to the FBO to store it. About 8 people saw the little Champ taxi around
the corner of the building, stop then shut down its tiny 2-cylinder
engine.....at which point the entire wooden prop simply fell off forward
onto the ground, all its many bolts sheared right off! Bill left it with
the mechanic who talked the prop company out of a free replacement,
rather than all those lawsuits and lawyers and court costs.... The prop
company even paid the mechanic's bill.

Bill came home on Trailways, pretty shook up. The little ragwing would
have been destroyed if that prop had gotten off its mount in the air and
come back into the fabric wings.....not nice.

He's still got the plane with the replacement prop, last time I saw
him....It's only problem is you fly into an airport and noone rushes out
to put 8 gallons of avgas in its little tank behind the engine. He used
to like me flying with him because I wasn't afraid to prop it by
hand...no starter...no electric system! In a headwind, the Volkswagens
on the ground were beating us going West...hee hee.

Larry
--
Vista has been out a week.
Is Service Pack 1 ready yet?