[Public-List] Hull thickness question

[Gordon Laco]

When I installed my Tempo saddle tank in SURPRISE, I shot expanding foam
into a plastic bag I had arranged behind the tank.  The bag inhibited the
curing of the foam, which caused me concern that it wasn't going to kick off
(it eventually did) but the result was that the foam was in the bag, which I
hope will inhibit the absorption of water.

The rest was similar to what Pete described below.  When the boat had her
five-year survey the surveyor grunted with approval, which I reckon is
highest accolade one can expect from someone in that trade.

Gord #426 SURPRISE


On 09/11/11 6:17 AM, "Peter Amos" <p.a.amos at hotmail.com> wrote:

> 
> This worked for me and held securely for 10 years through a lot of miles and
> some heavy seas. Clean and degrease the hull surface that  will be  behind the
> tank and also clean the tank surface that faces the hull. Run a 2" x 2" beam
> between the forward and aft bulkheads in the cockpit locker to prevent the
> tank moving forward.Dampen both surfaces with a spray of clean water. Spray
> some expanding foam between the tank and the hull,not too much ,you dont want
> to push the tank off its seat.Usr the plastic tube on the foam can to
> get spots of foam well behind the tank from both sides. No need for epoxy or
> holes in the hull.
>  
> Pete  ex Tait Tait  #478          
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