[C320-list] Splashing this week.....

[Warren Updike]

The element in Cold Galvanizing Compound is zinc.  The stuff we buy at HD or
Lowes is 90some percent zinc in a spray can.  It's about $7 at a box store
and $20 at a marine store.

A group at our marina (Middle River, mid-Bay,) did a comparative test a few
years ago.  Clearly, those who used the cold galvanizing compound fared best
with no barnacles on the blades and only a few on the hub.  

I think it's important to clean the prop well with an abrasive to remove
everything including the bronze tarnish.  Then, wipe well with a mild acid
like vinegar to slightly etch the surface.  Then apply the zinc in several
layers.  It dries fast so it won't take long.

Warren & Pattie Updike
1994 C320 #62 "Warr De Mar"

-----Original Message-----
From: Bruce Heyman [mailto:bruceheyman at cox.net] 
Sent: Tuesday, March 19, 2013 12:51 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Splashing this week.....

What is the metal in the Cold Galvanizing Compound.  If it isn't bronze then
you are likely to be making a battery out of your prop.  I would have
thought that you would end up with galvanic corrosion or at the very least
making your zincs go away quicker.
Bruce
Somerset Dana Point CA

Bruce Heyman
(949) 289-8400
bruceheyman at cox.net


-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Jason
Alexander
Sent: Sunday, March 17, 2013 6:47 PM
To: C320-List at catalina320.com
Subject: Re: [C320-list] Splashing this week.....

Brad,

So it's a year later since you made this post.   How did the Cold
Galvanizing Compound work on the prop.   I down the bay a ways from you and
I'm interested to know.

Thanks,
Jason


On Sat, Apr 21, 2012 at 6:40 PM, Brad Kuether <bkuether at comcast.net> wrote:

> I finished the bottom painting last night and this morning.
>
> I am  testing the "VC Offshore over VC 17" argument.
>
> I painted the bottom of the keel with VC Offshore, and a small piece 
> on the wing.
>
> I did scuff up the VC 17 prior to painting over it.
>
> Out to be interesting.
>
> Also used the Rustolium COLD GALVANIZING COMPOUND on the prop.
>
> I am going to be a wealth of knowledge come late fall.  :)
>
> I stopped by and saw Warren working his boat, and there was ANOTHER 
> Catalina 320 sitting in the marina.  He informed me it is there 
> temporarily.  But still, that would be 4 in one medium sized marina.
>
> See you Upper Chessies on the water in the next couple of weeks!!!
>
> -Brad, Mary, Monica, and Jarod
> "Independence"
> 2004 Catalina 320 Hull 1006
> Middle River, MD
>