On Tue, 06 Mar 2007 19:46:49 -0800, Brian Cleverly
wrote:

For years now we've used a no-sand primer as the tie-coat for painting non-skid
and there is no reason it wouldn't work just as well on an overhead.

It works excellently and we've never had a failure. Our primer of choice is
Pettit 6999 Bottom Prep. The Interlux version also works well.

The primer is very thin and will not fill the texture. While to some it might
seem overkill to use a 2 part LPU as the top coat it is actually a good choice.
LPU is also a thin paint and will not fill the texture like most 1 part
enamels (Brightside/Easypoxy etc.) will.

If you use the Pettit, the initial coat of top coat will tend to a grey color
but that will disappear with a second coat.

Brian C

Brian--

Thanks so much for taking the time to reply to my inquiry on
rec.boatbuilding. Your reply certainly made the most sense When I
decided to use Awlgrip my thoughts were on its thinness preventing
texture filling as well as future cleaning since the Awlgrip surface I
hope to end up with should wipe down fairly easily. My question to
you is if the Pettit Bottom Prep 6999 and the Interlux equivalent will
actually work as a base primer for Awlgrip and, if so, how long will
I have to wait before appplying the Awlgrip? I am sure Awlgrip would
tell us to use only their generic primer but we know how they like to
sell their own products.

While we are on the subject of primers I wonder if you have ever tried
CPES (clear penetrating epoxy sealer). It is an epoxy with a
proprietary solvent which thins it out to almost water-like
consistency. I have been using it to prime plywood before applying
West System 105 resin and glass and it works great for that purpose. I
have also used it on raw wood as a base primer for paint. Other than
a somewhat slow cure time it seems perfect as its viscosity allows it
to penetrate deeply into the wood. Moreover, almost any finish
adheres to it. I have done adhesion tests using it and it adheres like
nothing else. I wonder if it too could also be used as a primer for
Awlgrip.

Thanks,

Joe