Did the same with POR15. No need to sandblast to get the final little shiny
rust spots out. POR15 works better if there is no flakey rust, but rust is
good with POR15. 3-4 years later just fine. POR15 is heavy enough to fill
the pitted area. If you are going for concours then it's not the answer. I
have a spot sandblaster (media) that recovers the media and reclaims for
reuse. Gets the small spots without having to turn on big bertha and make a
mess. They are available at Harbour Freight. I got mine at Eastwood at a car
show where they were a vendor.
Alex
----- Original Message -----
From: "Gary Nafziger" <nafzigerg@yahoo.com>
To: <triumphs@autox.team.net>
Sent: Tuesday, October 13, 2009 10:22 PM
Subject: [TR] undercoat
> I've found the purple discs with angle grinder to be awesome. especially
> on
> the paint side of a fender. inside the fender i'm using the flat twisted
> steel brush with angle grinder to take the majority of crud off and then
> go
> over with the purple disc to get down closer to raw metal. saves some
> money by not going through so many purple discs.
>
> however i'm going to still
> be ending up with pitted areas that still feel very very solid. areas
> that
> look like liver spots............to get to those with sandblasting I'm
> afraid
> would result in warping. I plan on simply putting POR-15 to the test on
> entire inner fender. Just wondering what others are doing. I do have a
> pressure sandblaster which i'll use for lips and inside edges/corners.
>
> just
> wondering
>
> gary n.
> _______________________________________________
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