On Mon, 02 Aug 2004 09:29:19 -0700, P.C. Ford
vaguely proposed a theory
.......and in reply I say!:

remove ns from my header address to reply via email

Any idea's??? apart from taing plenty of petrol for the VF of course! I
can't be the only dummy to have done this.. can I?
regards
Stu K

No primer under bottom paint.

So does the bottom paint _provide_ a primer coat? I certainly never
thought of it like that.

Having said that, the boats I have antifouled have been two-packed. I
did not apply gloss to the bottom, as it was a waste if time. But they
were primed and undercoated.

I see some incosistencies here (the whole thread. Not just that bit).

The gloss lifted under the bottom paint (or did the whole lot lift?).
The manufacturer says to apply primer, _then_ bottom paint, then
gloss. But what about next year, or 6 months from now in some places?

In the end I guess the only safe way is to use a "system" or get
assurances from makers that their paints are compatible.


************************************************** ***
It's not the milk and honey we hate. It's having it
rammed down our throats.

There is just something completely inconsistent in that statement.

The entire concept of 'bottom paint' - Anti-Fouling - is to 'reject
attachment'. That is to prevent the typical flora & fauna from growing on an
underwater structure. This is usually achieved by the use of some kind of
chemical COMBINED with a carrier that either sloughs off {Rosin's or
Ablative's}or is so 'slippery' {Teflon, Vinyl's}that anything has difficulty
attaching.

Therefore, it goes against reason that any kind of finish - let alone a
'Gloss Finish' - would be recommended over an Anti-Fouling coating.

There is one particular circumstance where I have used a 'Gloss Finish' on
the bottom of a sailboat. The boat was 'dry sailed' - that is it spent most
of the time out of the water, stored on it's trailer. A Gloss Finish was
applied - then, when thoroughly cured, it was heavily waxed. {There are even
special waxes that are used as an 'anti-fouling coating' in waters of low
fouling, or fresh water}. Even so, it spent no more than several days at a
time in the water - after which it was well washed.

Regards & Good Luck,
Ron Magen
Backyard Boatshop

"Old Nick" wrote
SNIP
The manufacturer says to apply primer, _then_ bottom paint, then gloss.

On Tue, 03 Aug 2004 14:42:18 GMT, "Ron Magen"
vaguely proposed a theory
.......and in reply I say!:

remove ns from my header address to reply via email

There is just something completely inconsistent in that statement.

The entire concept of 'bottom paint' - Anti-Fouling - is to 'reject
attachment'.

Sorry. Yeah. That was my other point (I started _out_ with that in
nind, then got lost! G)
************************************************** ***
It's not the milk and honey we hate. It's having it
rammed down our throats.