[T3] Undervoat question
David Sanderson
djsanderson at telus.net
Sun Oct 30 10:06:24 PDT 2011
Hi Bob and Keith
Thanks for the comments - even though it seems that I cannot spell
undercoat. I have stripped all the undercoat away and was planning on
first epoxy primer and then the single stage paint that they mixed for
me. That's the paint I used for al the underside of the shell itself.
I had not thought of using the base-clear combination. Bob, do you
think the single stage would be enough or do you prefer, would you
recommend, going to the base-clear combination?
Dave
On Oct 29, 2011, at 8:50 PM, Bobsnotch at aol.com wrote:
>
> In a message dated 10/29/2011 11:00:12 P.M. Eastern Daylight Time,
> topnotch at nycap.rr.com writes:
>
> I strip or sandblast the fenders (careful sandblasting the
> sheetmetal)and
> then use POR 15 with a 3M undercoat over that, the POR 15 is a nice
> tough
> coat and lasts well as long as you don't actually paint it over
> any rust
> (ironicially!)and the undercoat keeps gravel and such from chipping
> it
> anyway. I also rest the fender on its back edge and apply roofing
> tar to
> the back seam, just enough to seal it AFTER the POR 15 and then
> undercoat
> over the whole shebang.
>
> The real problem is making sure you get ALL of the rust out of that
> seam on
> used fenders, your never going to get 100% but if you make sure
> water cant
> get back in there then your OK.
>
> Keith
>
>
>
>
>
> Yup, I sandblast too, but I epoxy prime that, rather than use Por (I
> hate
> that stuff). Then I paint it with auto paint, and clear coat it
> (just like
> the outside). This has worked great for me over the last 13 years
> I've been
> doing it. Like I said before, it allows quick clean up, and to be
> able to
> see any possible "new" rust that might be trying to start. If you
> just
> undercoat it like it was, then it might have "new" rust forming
> under it that
> you can't see. This is always the problem, hidden rust that comes
> back to
> haunt you.With it painted, you can use a flash light (torch for our
> UK and OZ
> friends) to visually check for any rust that's starting to appear.
>
> Bob 65 Notch S with sunroof and IRS (Krusty)
> 71 Notch (Krunchy)
> 64 T-34 Ghia (Wolfie)
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