Eh?  I thought the OG stuff was mild steel.

The replacement stuff from Frank Condelli is stainless and very pretty.

Chris S.

On Tue, Jul 22, 2008 at 10:04 AM, Doug Alcock <doug.alcock@gmail.com> wrote:

> Stainless steel does rust eventually --- a case in point is the stainless
> steel coolant pipes that run under the 83.5 to 85 vanagons. I'm sure you can
> guess how I know this.
>
> Cheers,
> Doug
>
>
> On 7/21/08, Chris S <szpejankowski@gmail.com> wrote:
>>
>> Well, I bought some exhaust wrap, but not to wrap my exhaust, mind you.  I
>> needed to shield some not-so-hot parts from the hotter-than-H parts.  I've
>> read reports of exhaust headers rusting very quickly after application of
>> fiberglass exhaust wrap.  Why?  The stuff soaks up water like a sponge and
>> holds it.  Yes, I just tested it.  So you can imagine what happens over
>> night when the dew point drops, no?  Yes.  The doom of all bare steel,
>> moisture, gets sucked up against the headers.
>>
>> It seems that sealing it against moisture would be the correct way to
>> apply
>> the stuff, which can be done by applying the appropriate and expensive
>> sealant.
>>
>> No problem for stainless steel headers, right?  Maybe not so, since the
>> wrap
>> causes the temperature of the headers go up, which may be too much of heat
>> stress for the metal to handle.  And that might be another DEEP, DARK
>> secret
>> in itself.
>>
>> Chris S.
>>
>
>
>
> --
> http://www.dougalcock.com