What type of Calk and how much do I need

[Dennis H.]

I'm soon going to be putting my doors, windshield and windshield trim back together on the 65 Vert.

What type of Calk do I need to set the windshield? How much do I need?

What type of Calk do I need to fill in all the windshield trim and door panels (hard steel panels)? How much do I need?

Thanks.

[Chuck S.]

Re: What type of Calk and how much do I need

Dennis, if you removed the windshield on your 65, you know that unlike later Corvettes, it uses a rubber gasket for the windshield.

Properly installed, I doubt the windshield uses ANY caulking material for a leak tight fit, but then I am merely an humble C3 guy. If I wanted to know how the windshield, windshield moldings, and other trim was sealed, I would personally buy the Assembly Instruction Manual for 1965 Corvette because I hate getting my info second hand, but that's just me.

As to how much caulk you'll need, I really consider that an academic question because you have little control over what quantity the manufacturer sells in a package of caulking material anyway. It's likely that if you buy the minimum quantity available, you will have plenty left over when this car is finished; if not, then just go buy more until you finish the job.

About the only modern replacement caulk product you will find for the sealing the moldings is 3M's Strip-Calk. In my opinion, another product is required for sealing glass to rubber or rubber to the pinch weld. Again, I don't think you'll need it for a new clean installation of the windshield, but I could be wrong.

[John H.]

Re: What type of Calk and how much do I need

The shop manual has pretty good detail on sealing the windshield weatherstrip to the body opening before applying the stainless moldings; the closest currently-available material is 3M #08509 Automotive Bedding & Glazing Compound.

3M Strip-Caulk works for sealing the steel door inner panel access covers to the fiberglass door inner panel.