[Hallicrafters] Wrinkle Paint

[Lloyd Godsey]

To safely remove rust, soak item overnight in a vat of WHITE vinegar.
The acetic acid will dissolve all rust and not harm painted areas.
Wash in HOT water and be ready with some oil to coat the item with or it 
will turn red
with oxidization quick.
Or after vinegar treatment
brush some Ospho over it and rinse with water.
Will never rust again.
Ospho available at marine hardware and Ace hardware stores.
About $25.00 a gallon.
Acetic acid dissolves iron oxide, will not touch the base metal.
Ospho forms a protective coat on the bare metal, prime and paint, or just 
paint.
Ospho turns iron oxide into iron sulfate if applied to rusty parts.
Harder than the hubs of hell, must be chipped or ground off to remove
so be careful where you apply it.



Thanx
Lloyd Godsey KK7IZ
kk7iz at cox.net
480-620-7145
http://www.lloydsdipsydumpster.com/
http://www.antiqueradioarchives.com/

-----Original Message----- 
From: Paul Daulton
Sent: Wednesday, April 20, 2011 4:34 PM
To: hallicrafters at mailman.qth.net ; 'rbethman'
Cc: 'Roger Shultz'
Subject: Re: [Hallicrafters] Wrinkle Paint

Blasting with beads or other media is invasive. Better choice is CO2
blasting, check local area for vendors.

Rust removal products do not work with chemicals unless the item is
degreased. A process popular with antique car restorers a few years
back was to soak the item in tri-sodium phosphate(heated solution).
This will remove the paint effectively and prepare for rust removal Do
not use this process on aluminum. Tri-sodium phosphate is sold at most
paint stores. A couple of teaspoons in a coffee can of water will bring
paint brushes back to life overnight.

An electrolytic process with ARM&HAMMER detergent is popular with some
gun restorers, and Shopsmith and other tool restorers. A large plastic
garbage can is used with a stainless steel anode. A variable dc soource
is recommended. Google ARM&Hammer rust removal.

Evap-o-rust is a very good product for rust removal. A bit pricey it is
sold at auto parts stores. About $8.95/qt and $22.00/gal. Google
EVAP-O-RUST. I used it for restoring 4 Shopsmith machines and
accessories in the last 5 years.

I havent tried it but Kool-aid is supposed to be good as are carbonated
beverages. The carbolic acid and citric acid works well on rust removal.

Radiator shops and engine shops often have vats to remove paint, rust
and grease. May be a bit harsh for
radio cabinets.

I am just about to start on the spare cabinet for my SX-43. I will
strip it with auto paint stripper and take it to a friend who has a
large tank set up for the Arm&Hammer process.

Paul k5wms

Quoting rbethman <rbethman at comcast.net>:
> Roger,
>
> Unless the cabinet is REALLY rough, I'd say have it bead-blasted.  That
> uses glass beads in lieu of sand used in sand blasting.
>
> It sure removes the paint and primer, BUT it won't remove the metal -
> UNLESS whomever is doing it hasn't a clue!
>
> I've had several items done that way.  It was worth it!
>
> My $0.02 worth.
>
> Bob - N0DGN
>
> On 4/20/2011 4:31 PM, Roger Shultz wrote:
> > On the subject of wrinkle finishes, what do you think is a
> reasonable charge
> > (i.e. that hams would be willing to pay) for a complete inside/outside
> > sandblasting the recoating in black wrinkle for an equivalent  cabinet 
> > the
> > size of a Hammarlund HQ-129X cabinet?
> >
> > Enquiring minds are curious?
> >
> > 73, Roger, NJ2R
>
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Paul Daulton K5WMS
beacon WMS 185.302 khz qrss30/slow 24/7
Jacksonville,Ar 72076
em34wu

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