Stu Knowles wrote:
Hi all,
Now approaching what I thought might be the end of a six month rebuild of a
small wooden 'double ender' 18ft, I have painted from the bare wood with
'normal' enamel paints, ie aluminium primer, undercoats and gloss layers. I
began to apply the anitfouling paint as almost the last paint to be applied
and as soon as it hit the bottom, the gloss paint wrinkled up in a horrible
paint reaction.

I have spoken to the manufuacturers 'helpline' who says I should have
applied primer followed by the AF paint with any gloss ontop of that, i.e.,
strip it off and start again.

No...you're not the only dummy who's done this. I had the same problem
when I applied a new bottom paint that was incompatible with the
previous bottom paint used by the boat builder...we'd sand blasted it,
but hadn't stripped every last bit of it off. Within minutes it began to
"boil" and raise blisters. The only solution was the advice you've been
given: strip it all off and apply two coats of primer (make sure you use
the right primer as recommended by the new paint mfr) 24 hrs apart to
create a barrier coat before applying bottom paint.

I was just as thrilled to learn that as you are. But it's the only
thing that will work.

--
Peggie
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Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://69.20.93.241/store/customer/p...40&cat=&page=1