Sealer on Front windshield ?

[76 fastback]

Someone mentioned that the front gasket was designed to have the windshield installed with a sealer in-between the glass and gasket. Is that true? Has anyone one else heard of this?

[datzenmike]

Often it will seal by itself but I've had a 521 window replaced and the installer squirted a rubberized sealer around the outside between glass and gasket. Also between body and gasket. This stuff doesn't harden exactly and can be scrapped off and the gasket re-used if the glass gets replaced again. I've used black urethane but it hardens like cured rubber and while it seals very well it bonds the glass to the gasket.

[kelowg]

Clear flowable silcone can also b used. This is what its meant for.  521's r known to have water seep around the bottom edge of the glass. Works great,last truck it was 10 plus yrs and still no leaks.

[datzenmike]

It should be removable. The stuff the glass shop used gets firm is flexible and you can scrape it off.... the next time the glass needs changing. Most RTV silicone becomes permanent and then you would need a new gasket..

[kelowg]

But doesnt do/last as well. Reused gasket when i replaced windshield recently. Did have to reapply said silcone.

[datzenmike]

I'm saying you don't want it permanently sealed. The stuff I'm mentioning can be stripped away. It was like 'liquid rubber' that thickens to seal but can be scrapped off again. Maybe you mean the same thing.

[76 fastback]

OK that pretty much answered my question. I have a small leak and it has no sealer on it.

I have a second windshield to put in w/no rock chips. I'll seal it up then. Thanks