galvanising

[Smokeyone]

Has anyone experience of having car body panels galvanised prior to
painting. I know the galvanising process can warp panels and that it
also might be difficult for paint to stick to a galvanised panel but
is it viable.

Thanks

Smokeyone

[cornelp@xtra.co.nz]

On 8 Aug 2004 22:23:02 -0700, mailstarclipper@btopenworld.com
(Smokeyone) wrote:

>Has anyone experience of having car body panels galvanised prior to
>painting. I know the galvanising process can warp panels and that it
>also might be difficult for paint to stick to a galvanised panel but
>is it viable.

Galvanising requires calcium plumbate primer before any other paint
will take, otherwise the paint just comes off in sheets. I wouldn't
say that it was practical for a car.
Peter C.

[Dave Plowman (News)]

In article <41189d25.48676118@news.xtra.co.nz>,
<cornelp@xtra.co.nz> wrote:
> Galvanising requires calcium plumbate primer before any other paint
> will take, otherwise the paint just comes off in sheets. I wouldn't
> say that it was practical for a car.

Many modern cars are at least part galvanised at the factory. So there
must be a way of painting them. ;-)

--
*A fool and his money are soon partying *

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

[AR Gonot]

Dave Plowman (News) wrote:
> In article <41189d25.48676118@news.xtra.co.nz>,
> <cornelp@xtra.co.nz> wrote:
>
>>Galvanising requires calcium plumbate primer before any other paint
>>will take, otherwise the paint just comes off in sheets. I wouldn't
>>say that it was practical for a car.
>
>
> Many modern cars are at least part galvanised at the factory. So there
> must be a way of painting them. ;-)
>
They use Etchprimer same as used when painting aluminium alloy and GRP.

[cornelp@xtra.co.nz]

On Tue, 10 Aug 2004 14:48:26 +0100, AR Gonot <zen53576@zen.co.uk>
wrote:

>Dave Plowman (News) wrote:
>> In article <41189d25.48676118@news.xtra.co.nz>,
>> <cornelp@xtra.co.nz> wrote:
>>
>>>Galvanising requires calcium plumbate primer before any other paint
>>>will take, otherwise the paint just comes off in sheets. I wouldn't
>>>say that it was practical for a car.
>>
>>
>> Many modern cars are at least part galvanised at the factory. So there
>> must be a way of painting them. ;-)
>>
>They use Etchprimer same as used when painting aluminium alloy and GRP.

Surely the 'etch' process is then removing the galvanising!

[Rob]

cornelp@xtra.co.nz wrote:
> On Tue, 10 Aug 2004 14:48:26 +0100, AR Gonot <zen53576@zen.co.uk>
> wrote:
>
>
>>Dave Plowman (News) wrote:
>>
>>>In article <41189d25.48676118@news.xtra.co.nz>,
>>> <cornelp@xtra.co.nz> wrote:
>>>
>>>
>>>>Galvanising requires calcium plumbate primer before any other paint
>>>>will take, otherwise the paint just comes off in sheets. I wouldn't
>>>>say that it was practical for a car.
>>>
>>>
>>>Many modern cars are at least part galvanised at the factory. So there
>>>must be a way of painting them. ;-)
>>>
>>
>>They use Etchprimer same as used when painting aluminium alloy and GRP.
>
>
> Surely the 'etch' process is then removing the galvanising!

Etch primer keys into the gal, etch primer (was zinc chromate not sure
if it now contains this) so it does replace the zinc.

[cornelp@xtra.co.nz]

On 8 Aug 2004 22:23:02 -0700, mailstarclipper@btopenworld.com
(Smokeyone) wrote:

>Has anyone experience of having car body panels galvanised prior to
>painting. I know the galvanising process can warp panels and that it
>also might be difficult for paint to stick to a galvanised panel but
>is it viable.

Galvanising requires calcium plumbate primer before any other paint
will take, otherwise the paint just comes off in sheets. I wouldn't
say that it was practical for a car.
Peter C.

[Dave Plowman (News)]

In article <41189d25.48676118@news.xtra.co.nz>,
<cornelp@xtra.co.nz> wrote:
> Galvanising requires calcium plumbate primer before any other paint
> will take, otherwise the paint just comes off in sheets. I wouldn't
> say that it was practical for a car.

Many modern cars are at least part galvanised at the factory. So there
must be a way of painting them. ;-)

--
*A fool and his money are soon partying *

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

[AR Gonot]

Dave Plowman (News) wrote:
> In article <41189d25.48676118@news.xtra.co.nz>,
> <cornelp@xtra.co.nz> wrote:
>
>>Galvanising requires calcium plumbate primer before any other paint
>>will take, otherwise the paint just comes off in sheets. I wouldn't
>>say that it was practical for a car.
>
>
> Many modern cars are at least part galvanised at the factory. So there
> must be a way of painting them. ;-)
>
They use Etchprimer same as used when painting aluminium alloy and GRP.