[JamRSW6]

What do you guys recommend to repair/replicate the sealer that goes between the hood sheetmetal and the underside bracing on a 69 GTO hood? Looks like my sealer has separated in several places. When you drive the car you can see the hood jiggling.

Thanks!

[Dick Boneske]

Windshield Urethane works great for this! I used it on my '64 where the factory sealant had loosened. You only need a small hole in the applicator tip.

Simply push the hood sheet metal up away from the bracing, squirt a small amount of urethane into the opening, repeat for each "donut" that's loose. I've not had any of these come loose after doing this two years ago.

Some said this was going to pull dimples into the sheet metal due to the strength of the urethane, but I see no way this could happen.

[Cammer-6]

3M anti flutter
http://solutions.3m.com/wps/portal/3...beQH8HT14PGTgl

fusor also makes some

[Dick Boneske]

The 3M product will not adhere the sheet metal to the hood bracing. Read the description of the 3M product--it's very specific about what the product is intended for--it's not an adhesive. Windshield urethane is a very strong adhesive that works perfectly for securing your sheet metal to the hood bracing. I don't believe there is another product more suitable for this fix--at least none that is so easily available, economical, and easy to use.

[JamRSW6]

Thanks guys!

[65blackplate]

Originally Posted by Dick Boneske

Windshield Urethane works great for this!

Some said this was going to pull dimples into the sheet metal due to the strength of the urethane, but I see no way this could happen.

I have seen this happen and it is not good

[400 4spd.]

I have too.

[quicksilver97ta]

Well that's kind of goofy if you think about it. Either the adhesive holds or it doesn't. If someone ends up with dimples after the bracing is re-attached it's because the bracing was pushed down and now it's pulling the sheet metal down or the original adhesive was completely gone and the new adhesive was not applied as thick.

[paint guy]

Originally Posted by quicksilver97ta

Well that's kind of goofy if you think about it. Either the adhesive holds or it doesn't. If someone ends up with dimples after the bracing is re-attached it's because the bracing was pushed down and now it's pulling the sheet metal down or the original adhesive was completely gone and the new adhesive was not applied as thick.

Not necessarily. Can you envision how an adhesive could shrink over time and pull the metal down with it? If windshield adhesive shrinks holding a windshield in, it would be a non-factor as all it would do is pull the windshield in tighter and provide a better seal. If you glue metal to metal and its going to pull, the hood is a lot thinner than the brace. And I'll bet windshield urethane probably shrinks down to 50-75% of its original thickness as it cures.

[71HOT/A]

It's from heat expansion sometimes, depending on the adhesive or sealer. It can also happen if someone blocks too hard on a "soft" panel such as a hood, the metal around the sealer flexes down and the spot on top of the sealer gets more material removed than the area around it leaving that spot low.

[connman]

metal expands and shrinks with heat and cold if it cant shrink or expand at that spot it will stretch the metal and show spots or it will tincan. ask any good metal worker and he will tell you its true