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Always thankful I have the forum to turn to when a question arises. I removed the sealant putty from the seams fore and aft of the doors and number 3 body mount, marked in the photos, 64 coupe. Do the front of the rocker channels have any sealant? Are there any more seams other than around the outer door areas on a coupe that need sealant removed and reapplied? I am planning on using 3m strip caulk to reseal the marked areas, is there a better product?
Last edited by Vitaminmopar; 07-18-2017 at 11:26 PM.
If you have a copy of the AIM for your year car it would probably be worthwhile to thumb through it with a highlighter as it generally showed areas where sealant, caulking or dum-dum was installed by the assembly line. A lot of sealant was applied in the door jamb areas, especially in the coupes - to seal between the birdcage metal gutter and jambs and fiberglass panels.
Forgot to comment ... yes 3M black Strip-Calk is the best product to use here. Its a flexible sealant that is easy to press into the cracks and remains soft and pliable. Its what the factory called "dum-dum" 50 years ago. Cheers, Bill
Is this 3M black Strip-Caulk (or similar butyl rubber product) also used to seal the read inspection plates in the rear kick-up area? Thanks, Rick
It works very well for this purpose. Also useful to seal the inner door vapor barrier to the door. I use it to seal around heater penetrations and any other heater box junctions and gaps at the firewall.
Forgot to comment ... yes 3M black Strip-Calk is the best product to use here. Its a flexible sealant that is easy to press into the cracks and remains soft and pliable. Its what the factory called "dum-dum" 50 years ago. Cheers, Bill
Nope, not really - the 3M Strip-Calk material is fine for non-painted areas like sealing the door inner panel moisture barrier and the periphery of the heater blower to the firewall, but most other long-term sealing applications that involve painted panels and/or the birdcage are better served with the typical plastisol-based pumpable/paintable seam sealers the plant used.
...(snip)...most other long-term sealing applications that involve painted panels and/or the birdcage are better served with the typical plastisol-based pumpable/paintable seam sealers the plant used.
Thanks John for this. When I dug out (what looked like) the old caulking around the birdcage areas at the rear door pillars it looked a lot like Strip-Calk so that's what I always thought it was.
Can you suggest a readily available seam sealer you would use for the birdcage areas that need to be done? Or do all plastisol seam sealers work fine? Cheers, Bill
Can you suggest a readily available seam sealer you would use for the birdcage areas that need to be done? Or do all plastisol seam sealers work fine? Cheers, Bill
Bill, I'm not a painter, but most of the proper sealers were vinyl plastisol-based (and still are today), and can be hand-tooled in seams as well as pumped. Maybe some of the guys more familiar with today's offerings can recommend a product.
07-18-2017, 11:24 PM
Sealant putty areas
