Re: Is there a hi-temp expanding foam on the market?

none2u wrote:
> 
> "jim" <".sjedgingN0sp"@[EMAIL PROTECTED]
> wrote in message
> news:1210378750_1932@[EMAIL PROTECTED]
> >
> >
> > Fred Mann wrote:
> >>
> >> Unfortunately, everything is so rusted that it would be a massive
> >> undertaking to do it right. Not worth it to me.
> >> I may try the red RTV though. Thanks!
> >
> >
> > Furnace cement ought to work. Get it from a place that sells wood
stoves.
> > Follow
> > the instructions for filling cracks. Give it a full day to dry. You
have
> > to make
> > sure you get all the moisture out before you get the temp above
boiling or
> > it
> > will crack.
> >
> > -jim.
> >

>It wont work either. Been there done that. It wont take the gas pressure
or
>the heat.

Yes I hesitated to offer the advice because it probably won't work if not
done correctly. Furnace cement will definitely take the heat - a lot more
heat than a car exhaust usually gets. And it expands  at the same rate as
iron so heat and expansion aren't a problem even if you get the exhaust
cherry red. 
	It won't work on tin exhaust parts that flex but for filling a crack
where it is rigid and there is no flex it shouldn't be a problem. Of
course there is a bit of skill to applying it correctly so that it adheres
and locks itself in. It won't work on furnaces and stoves either when not
applied correctly. 

-jim  


>He has to live with it or replace the gasket or manifold.If its
>>warped too much.


----== Posted via Pronews.Com - Unlimited-Unrestricted-Secure Usenet
News==----
http://www.pronews.com
The #1 Newsgroup Service in the World! >100,000
Newsgroups
---= - Total Privacy via Encryption =---