Hi,

I know this topic has been covered and I’ve read up on the Threads in the C2 section but still have a couple questions.

In the #1pic below, there appears to be a factory sealant that was applied - one between the glass windshield and windshield gasket, and another sealant at the windshield to top chrome trim on a convertible. Are both of these supposed to be sealed with the CRL 7711, or just the windshield glass to gasket uses the 7711? If just the windshield glass to gasket, then what’s used at the trim to gasket interface - the 7708?



Next, the #2 pic of the lower trim: basically the same questions?



Lastly the last pic showing the trim to body/paint interface- what sealant is used here? 7711 or 7708?




This windshield is the original and has never been out as best I know having owned it the last 42 years. So I believe all the “sealants” pictured are from the factory.

I’d appreciate your comments.

Thanks,

Tom

 

What year is your car?

Mine used non-hardening sealant (7708) all around the chrome trim, but it's an '81. I don't know ...about the windshield gasket area on an earlier car. Hopefully someone will chime in. You might ask in the General forum of your gen Corvette ...if someone can check their assembly manual for your year.

 

Thx for your reply Mark. It’s a 66 convertible.

yes, I was considering posting this elsewhere also.

Thanks again,

Tom

 

My *guess* is a guy would use windshield sealant around the gasket (or urethane/silicone product). Mainly b/c glass can get hot and the non-hardening gets almost flow-able under heat. But yeah, see if it's in an assembly manual.

When I've put on rubber gaskets of older cars and trucks, the gaskets fit tight enough around the glass I usually didn't opt for windshield sealant. But it's probably a good belt and suspenders idea. But underneath the gasket a guy could probably use the non-hardening sealant. I think that's what many mfgr's did that back in the day. Come back and close the loop. Let us know what you found out to be factory correct, to help other restorers.

 

I got a very nice reply from Argentimage on the C1 C2 forum Here’s the link: This thread is located at:
https://www.corvetteforum.com/forums/showthread.php?t=4985863&goto=newpost

Includes a very good video and links to products.

Thx,

Tom

 

That's about what I figured. Belt and suspenders approach there ..can't hurt I suppose. 20 years down the road the urethane sealant probably helps a lot. Instead of using solvent to clean off that non-hardening sealant (you can see his didn't clean it off very well), get some 3M adhesive cleaner. That works great and usually safe on paint. But comes at that 3M price premium.

The video should be helpful for other guys. The guy narrating the video keeps referring the trim as 'chrome'. WTF? Doesn't a guy who puts glass into automobiles with some level of 'expertise', presumably for years know the difference between chrome and SS??! You gotta wonder about the quality of advice yer getting from a guy who makes that big of a faux pas repeatedly. Reminds me of a guy I used to work with in the HVAC world who had 25 years of experience. He used to call it Duck-work. Duck tape. "We'll put a duck here and another duck there." If you spent an hour on a jobsite you'd hear it 20 times (that wasn't the only faux pas he would commonly make). And he would do that in front of very smart customers ...which was really annoying. He wasn't being witty...he was a somewhat dufus who lacked awareness. Guys who knew him knew he was rather incompetent and wish the owner had fired him. You had to micro-manage every job he was on and be on the front-end of things, or it could be a disaster. He just bumbled through a career and had a bunch of bad jobs, and then everyone would step in and cover for the guy and keep him from doing stupid thing ...that last 20 years of his career. Other guys in the shop wouldn't trust the guy to even polish a hubcap. Wasn't a bad or mean guy though, just lacked professional awareness. Just saying.

If you have your glass out, good time to polish up your chrome ... ....Stainless Steel trim.

Regardless, thanks for circling back, the video link, and closing the loop. Should be helpful to a lot of guys. Good luck on your project!


.

 

FYI
DUB passed some time ago
Was a good friend and loved talking to another shop owner....
Just an FYI

 

Csherman, thanks for your reply. Sorry to hear the news about Dub.