PPG now recommends epoxy primer under the filler. You shouldn't mix it up as
a sealer until just before the final coats. It will keep off rust for a
while. A zinc phosphate will hold off the rust well if kept dry. The floor
of my truck has been this way for several months, with no rust. The metal
prep will remove any traces of rust, and the primer sticks to it well. Also,
no need to etch prime after metal prep.
-----Original Message-----
From: Passnb4U@aol.com <Passnb4U@aol.com>
To: trks@javanet.com <trks@javanet.com>; jsd51@hotmail.com
<jsd51@hotmail.com>
Cc: oletrucks@autox.team.net <oletrucks@autox.team.net>
Date: Wednesday, September 15, 1999 7:03 PM
Subject: Re: [oletrucks] Bare Metal Prep.
>In a message dated 9/15/99 6:14:26 PM Pacific Daylight Time,
trks@javanet.com
>writes:
>
><< The first thing I would do is to patch all rust, straighten dents,
weld
> cracks, etc. before it's blasted. There will be plenty more to fix after
it's
> primed even though you think you got everything.
> After blasting you could shoot the entire thing with metal etch primer
the
> same day followed by an epoxy primer. Filler can go over epoxy primer.
>Moisture
> will not penetrate the epoxy primer like it will some other primers. I've
>heard
> other approaches to this system and you will likely get other ideas. The
>tough
> part is sifting through all the info and choosing.
> Also a subject of debate is blasting large flat areas such as roof and
>back
> of cab. I avoid it if possible while others have no problem with it.
Choose
>your
> blaster carefully.
>
> Grant 50 3100
>
>
> Jeff Davis wrote:
>
> > Howdy All,
> >
> > I've got one for all you body men (now,now,... lets keep our focus
on
> > trucks :) ). I'm checking around for prices for getting the entire AD
> > sandblasted and think I've finally found my man, however what do I put
on
> > the body immediately after it's sandblasted? I intend to fix all the
dents
> > and replace all the nonrepairable metal (cab corners ect...) but seeing
how
> > It will take me quite awhile to complete all this body work, don't I
want
>to
> > protect the bare metal in the mean time?
> > I thought of a thin coat of primer but don't know if this will
>actually
> > hold off the rusting process while I slowly do repairs. Also I don't
want
>to
> > put anything on that I'll have to remove later in order to properly prep
>for
> > paint.
> > Any ideas of what to use and how to apply it would be greatly
> > appreciated. Thanks to all in ADvance ALL your advice.
> >
> > Jeff Davis
> > '51 custom.
> > >>
>
>
> I agree with Grant on the process, but I'm still a little "old school" on
>somethings, and would rather take the primer off to bare metal before
filler,
>just a little more work that way, but give me a piece of mind.
>
> Mike
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|