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Por-15 Question and couple of MkI Q's too.
"titanium jet turbine"? - now that is cool!
Marc
'83 Scirocco
'88 Scirocco Slegato
-----Message d'origine-----
De : scirocco-l-admin@scirocco.org [mailto:scirocco-l-admin@scirocco.org]
De la part deL F
Envoyé : 23 mars, 2003 10:09
À : Rick Alexander; Jeff Toomasson; Ron Pieper; John C. Worden;
scirocco-l@scirocco.org
Objet : Re: Por-15 Question and couple of MkI Q's too.
Warping is caused by slight compression of the surface being blasted. This
sets up uneven stresses that leads to the warping. We experience this at
work all the time and use it to determine actual amount of time the part
(titanium jet turbine blades) have been blasted, through the use of coupons
called Almen Strips (thin strips of steel that are blasted at the same time
as the blade, then are measured for warping).
If it were heat, the sheet metal would be discolored (blue).
The baking soda doesn't produce this effect because it isn't as effective
(softer than the steel) and doesn't "peen" the surface as much as the harder
abrasives.
STRS (setting the record straight, which is my sole responsibility on this
list....the only role for which I am suited and includes totally pissing-off
some of the people whom I contradict)
Larry
sandiego16v
----- Original Message -----
From: Rick Alexander <mailto:ralexander03@snet.net>
To: Jeff Toomasson <mailto:jtoomasson@yahoo.com> ; Ron Pieper
<mailto:rapieper@yahoo.com> ; John C. Worden <mailto:scirocco@powerlink.net>
; scirocco-l@scirocco.org <mailto:scirocco-l@scirocco.org>
Sent: Sunday, March 23, 2003 3:08 AM
Subject: Re: Por-15 Question and couple of MkI Q's too.
What you are referring to here is warping due to heat. Flat panels will get
surprisingly wavy if sand blasted due to heat. Then try a nice gloss black
finish!
Black beauty is available to me at the local hardware store in 80 # bags.
Baking soda blasting will avoid the heat damage. To get this in bulk you
need to find a good commercial blaster.
And yes, coat it immediately. Even just a few hours will allow it to turn
brown.
Rick Alexander
----- Original Message -----
From: Jeff Toomasson <mailto:jtoomasson@yahoo.com>
To: Ron Pieper <mailto:rapieper@yahoo.com> ; John C. Worden
<mailto:scirocco@powerlink.net> ; scirocco-l@scirocco.org
<mailto:scirocco-l@scirocco.org>
Sent: Saturday, March 22, 2003 10:10 PM
Subject: Re: Por-15 Question and couple of MkI Q's too.
Are you planning on removing all the black undercoating crap too, Ron?
In regards to the sand-blasting, I read somewhere (and will definitely
double-check) that exterior areas that will be seen should NOT be
sandblasted. Something about marring the surface shape?? Can anyone
corroborate that?
I was definitely planning on going the POR-15 route.
Was it Alan who said to get the paint on quickly? I assuming by "paint" hea
meant the POR-15 top coat, correct?
Thx, JT
Ron Pieper <rapieper@yahoo.com> wrote:
I don't know about POR 15; never used it. But, in my typical cheapass way, I
have found and
effective, off-the-shelf solution: Rustoleum Rusty Metal Primer is
absolutely the dogs bollocks
for sealing metal and preventing the spread of rust. I think it has fish oil
or something (ever
see a rusty fish? Well there ya go).
I had bought a beater Rabbit for a girlfriend some decades ago, it had some
surface and other
minor rust. I just wire brushed it off and put some RMP on it. On an
exterior surface, that rust
didn't peek through for over two years, probably longer since I sorta dumped
her and the car went
too, and I haven't seen hide nor hair of either one since (nor that $3000
she owes me...well,
that's another story).
I'm telling ya - when I get my MkI, out come the carpets and down goes RMP
in any questionable
areas. Underneath too. Topcoat with other Rustoleum stuff iff'n you want.
My $0.02 says that common sense prevails...this is a cheap and very
effective solution IMO.
HTH
Ron
--- "John C. Worden" wrote:
> I'll address this all at once:
> In regards to the first email, I'm not going to cover over what little
rust
> there is. I am going to sandblast too and
> then am going to Por 15 everything that is out of sight. This is the best
> looking MkI I've seen around here for a
> long time and want to keep it looking that way(TX car supposedly).
> In regards to Alan's email, thanks, I will go with their topcoat.
> Julie, this "black beauty"; what is it exactly. I assuming it's not sand
of
> course.
>
>
> John
>
> At 07:52 PM 3/22/03 +0000, Julie Macfarlane wrote:
>
> >Unbelievable. I've tried those scrubber wheels, wire wheels sand paper,
> >every thing.
> >Man that sandblaster does an INCREDIBLE job. Cuts the rust and paint in a
> >heart beat. Best $24.00 I've spent yet....
> >
> >Ummmm. What else can I do?
> >
> >
> >
> >Julie Macfarlane
> >
> >
> >
> >
> >>From: "Alan Stamper"
> >>
> >>And get the paint on there as soon as you can. I wouldn't even let it
sit
> >>overnight.
> >>
> >>Alan
> >>
> >>From: "Julie Macfarlane"
> >>
> >>
> >> > A friend of mine told me that NO product stops rust. POR15 etc just
delays
> >> > the creeping of rust. He suggests, either cut it ALL out or
sandblasting
> >>the
> >> > metal to remove all the rust.
> >> > Sooo...
> >> > For me I got an inexpencive sandblast gun from Walmart and borrowed a
> >> > compressor. 100 lbs of Black beauty and I have a date in the drive
way
> >> > today...
> >> > To seal the metal, he suggests a self etching primer, with a coat of
paint
> >> > to cover.
> >> >
> >> > Julie Macfarlane
> >>
> >> >
> >> > >From: "John C. Worden"
> >> > >To: scirocco-l@scirocco.org
> >> > >Subject: Por-15 Question and couple of MkI Q's too.
> >> > >Date: Sat, 22 Mar 2003 09:18:58 -0500
> >> > >
> >> > >Here's a question for those of you experienced with Po-15. I'm
getting
> >> > >started
> >> > >with work on the '78 and want to use Por-15 on the insides of the
outer
> >> > >fenders,
> >> > >and the very front of the inner fenders(well at least these areas,
maybe
> >> > >more).
> >> > >Apparently the top coat is optional, what did you use, and do
recommend
> >>the
> >> > >topcoat? I want to do this right, but also don't want to bother with
> >> > >needless
> >> > >steps.
> >> > >Also anybody know offhand if the body stickers(doorjamb and under
hood
> >> > >ones)
> >> > >are still available or if someone makes repros?
> >> > >Could also use a pair of saddle brown inside door handle trim
pieces- the
> >> > >piece
> >> > >that goes around the handle. Want a pair in VERY nice shape.
> >> > >
> >> > >Thanks
> >> > >
> >> > >John C. Worden
>
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