Re: [AMC-list] Glass rubber for late 60s American (was: Got a cool kid)

[Wrambler <wrambler242@xxxxxxxxxxx>]

Did a quick search and seems to be a pretty even split between
old school butyl users and new urethane users.

I'm sticking, er, stuck with what mine is in with :)

Mark Price
Morgantown, WV 26508
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrac II
"I realize that death is inevitable.
I just don't want to be around when it happens!"

----- Original Message -----

> From: "Frank Swygert" <farna@xxxxxxx>
> To: amc-list@xxxxxxxxxxxxxxxxx
> Sent: Sunday, February 6, 2011 5:02:12 PM
> Subject: Re: [AMC-list] Glass rubber for late 60s American (was: Got a cool	kid)
> 
> Well, I'm just not familiar with the urethane sealer you're talking
> about. The only one I'm familiar with is the stuff used to glue in
> later model windshields. Maybe there is a urethane based softer sealer
> now?
> 
> I never saw a big problem with RTV/Silicone, but it's not recommended.
> I've been told that moisture can get trapped behind it and cause
> rusting, but that's true with any sealer as far as I can tell. It DOES
> stick and can be hard to get a windshield out and remove the residue,
> but again -- that's just about with any sealer. I've had to cut
> windows out that were sealed in with silicone and it can be quite a
> chore, but it won't leak and I don't see how it could promote rust any
> more than any other sealer. The non-hardening sealers would definitely
> be easier to remove/clean up later though.
> 
> -------------
> Date: Sun, 6 Feb 2011 17:31:45 +0000 (UTC)
> From: Wrambler<wrambler242@xxxxxxxxxxx>
> 
> Frank, Not sure what you have against urethane?
> Yes it will make a possible later replacement tougher, but will seal
> and hold the gasket flush to the body.
>     I'm not talking any old urethane. It has to be specifically
> designed for use with the gasket windows.
> 
>     When I put my rear glass in I did not have cash for a rear rubber,
> plus it may not have even been available at that time. The rubber on
> the 69 sedan is black rubber, not chrome. The rubber also had a curl
> at the corners, which are rounded. Using the urethane I got from glass
> shop for gasketed windows, the urethane bridged that gap, is invisible
> as it dries to look like rubber. It is probably 12 years since it was
> installed and the rubber still sits tight to the body, there are no
> leaks.
> 
>    While there may be diffculties in replacement should that time ever
> arrive, I will take a dry interior over something that may never need
> done.
> 
>    I spent many years trying to seal these windows at Tewell's and the
> sealers of that time where a total nightmare, slimy glue that never
> fully cured or bonded. No thanks.
> 
>    I will also acknowledge there are probably better sealers out there
> now. In 1999 I went with Urethane on the back glass and have zero
> regrets.
> 
> Before I knew about the Urethane...The NOT recommended procedure was
> done.
> 
>    I used black 3M Marine grade RTV on the front windshield, horror of
> horrors. Set the glass in the rubber with it, installed the glass in
> the body with it, Masked the frame area and then fill the gap between
> the channels and gasket and set the chrome in the RTV. NO CLIPS for
> the trim and it is not the narrow trim that goes in the rubber
> either.
> 
>    Also 12 years old and not a drop of leakage. I WOULD NOT repeat the
> RTV job...but at the time I did it I thought it to be a good idea....
> 
> 
> 
> -- 
> Frank Swygert
> Publisher, "American Motors Cars"
> Magazine (AMC)
> For all AMC enthusiasts
> http://www.amc-mag.com
> (free download available!)
> 
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