[Public-list] Bottom Job

[C.B. Currier]

Here is a page from MAS epoxy on Blisters & Barrier Coating.
http://www.masepoxies.com/blisterandbarrier.htm

The general consensus is that epoxy is 2,000 times better adherence to
anything compared to polyester.

The old resins were not as good at curing and even today do not have the
same quality of bond that epoxy does. Epoxy should prevent that which was
allowed by the old gelcoats/polyester finishes. Hence an Interlux 2000
barrier coat should do fine.

However regular haulouts and a 10 year check are worth while.

-- 
C.B. Currier
Infinity #57
Daybreak #458

George Dinwiddie said:
> Roger L Kingsland wrote:
>> George,
>>
>> 148 has been inside for 15 months ("the wheels of progress...").  I
>> water
>> blasted the interior a year ago and ran a dehumidifier for a few weeks
>> after. Even if I barrier coat the bilge, I still wonder if it is
>> possible to
>> keep water out of the keel.  I understand the keel laid in epoxy but is
>> it
>> particle to assume water from the bilge will not infiltrate the area
>> between
>> the cast iron and fiberglass?  Can I assume if I discover few blisters
>> after
>> removing all paint that a barrier coat is unnecessary?
>
> I think a barrier coat is unnecessary and risky.  (I doubt Whitby used
> any epoxy, too.  Polyester was pretty cutting edge, still, at the time.)
>
> My feeling is that boats get wet.  Hauling them out every year or two
> and letting them dry out does a world of good.
>
>   - George
>
> --
>   ----------------------------------------------------------------------
>    When I remember bygone days                         George Dinwiddie
>    I think how evening follows morn;            gdinwiddie at alberg30.org
>    So many I loved were not yet dead,           http://www.Alberg30.org
>    So many I love were not yet born.
>                                              'The Middle' by Ogden Nash
>   ----------------------------------------------------------------------
>
>
>
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