[C320-list] 3M 4200 fast cure

[Warren Updike]

If Jim is referring to what I call chain plates (thingies that penetrate the
deck and attach to the ss rods in the cabin,) then I don't think butyl tape
will work for that.  I'm not even sure 4200 is the best.  On the advice of
our marina I used BoatLife LifeCalk about 8 years ago and they are just
beginning to leak now.  There may be even better products out there now by
Sylkaflex, 3M, and others.  The qualities needed seem to be: strong adhesion
and flexibility.  
Jim doesn't say what year is his hull; but, if it is an early one, it might
be a good idea to remove 1/2" of deck core and replace with filled epoxy to
prevent water entry to the core.

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


-----Original Message-----
From: Bill Hutt [mailto:bhutt at windstream.net] 
Sent: Wednesday, June 19, 2013 3:05 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] 3M 4200 fast cure

I use butyl tape for anything that requires a water tight seal but does not
need adhesion.
Bill Hutt
"Caribbean Soul" #570
Cleveland, Ohio

-----Original Message-----
From: dprudden
Sent: Wednesday, June 19, 2013 11:20 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] 3M 4200 fast cure

For what its worth, I've picked up 4200 at Walmart before (and its less
expensive).

Sent from my iPhone

On Jun 19, 2013, at 8:45 AM, jim brown <jbrown5093 at yahoo.com> wrote:

> My starboard deck fitting for the lower aft shroud is leaking slightly 
> in heavy rains. I had planned to rebed the deck fitting using 3M 4200. 
> Three area WM stores are out of it in the 3 oz tube (don't need the 
> large size) and 2 stores said that 4200 has been discontinued by 3M 
> (however it's still listed on the 3M website). Any information on what 
> to replace it with (don't want to use 5200) and whether the rumor is true?
>
> Jim Brown