Rust converters are phosphoric acid based and change iron oxide to a
protective barrier of iron phosphate! The phosphate is fragile and needs
protective,
Zinc based paint over the top wont hurt in case any scratches occur
Cheers
Feral Errol
----------
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: floorpan rust
Date: Thursday, August 24, 2000 10:54
isnt the rust converter stuff a type of sacrificing protector (in the
same way as the zinc paint), therefore wouldn't really be an
insulator?? andrew
From: "Thomas Grant" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Date sent: Thu, 24 Aug 2000 00:41:52 GMT
Send reply to: [EMAIL PROTECTED]
Subject: Re: floorpan rust
> The black tar paint sounds like a good idea but, doesnt the galvanising
zinc
> paint work by being in direct electrical contact with the steel, the zinc
is
> a more reactive metal than the steel so it will allways react, oxidise,
> whatever, before the steel. galvanising or spraying with zinc paint is
rust
> protection that works by sacrificing a more reactive metal to
oxidisastion
> in order to save the steel floorpan. Therefore, if you spray zinc paint
over
> rust converter, wouldn't any galvanic rust protection be negated because
the
> rust converter would be acting as an insulator between the steel and the
> zinc???? Thomas..
>
>
> >From: "sonja jeffery" <[EMAIL PROTECTED]>
> >Reply-To: [EMAIL PROTECTED]
> >To: [EMAIL PROTECTED]
> >Subject: Re: floorpan rust
> >Date: Wed, 23 Aug 2000 22:12:05 EST
> >
> >Ive had to do the same thing to mine. I used a wire brush to take off
the
> >surface rust and to clean it up, then put some rust converter on top. I
> >think the trick then is to coat it with either that thick black shit
(sorry
> >cant remember what its called , its like a tar paint) or to use a
> >galavanised paint which will never rust. It pays i guess to do the whole
> >floor at the same time.
> >________________________________________________________________________
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