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Old 11-26-2006, 10:21 PM
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Thanks for the replies, they're forcing me to think things through

To follow up on something that I haven't seen addressed is to fix WHY it is rusting where it is. What I've noticed in each spot, there is a missing drain plug (whatever you call them, basically a solid grommet), missing 'Impala' letters and a bad trunk seal. All of which has allowed water and debris to get into the trouble areas, and rust out.
On '64 Impala's you can get into the trunk and reach down all the way to the bottom of the quarter panel.... even though access is a tad tight.

I've cut out the bad areas, and I will media blast the 1.5" tall rusty seam along the mating surface of the q.panel and inner panel, etch prime, epoxy prime and use seam sealer where needed. I will also replace the missing drain plugs w/ silicone sealant to take make sure they seal totally. Of course, the missing 'Impala' letters will be replaced and all weather stripping is getting replaced.

I'd rather take the time to do it right now rather than have any problems down the road. I like doing things once

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Old 11-27-2006, 04:37 AM
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At any mating surfaces where you will be welding, you need to use weld thru primer. On all other bare metal areas, you need to use epoxy primer. No need for etch primer at all.

The lower pocket of the quarterpanel should have some kind of drain. Most had a "flapper" type of plug in a hole down there. If you want to seal it, you can usually find a rubber hole plug of that size to use. I would not use silicone sealer on the car body. Holes from emblems are a source for water to get in. You do need to make sure that they are filled with something, if emblems are not installed.

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Old 11-27-2006, 02:09 PM
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Swazo -

what year Impala are you working on? I'm currently in a full blown frame off on a '64 convertible (non-ss)

Got any pics???? I would love to see the project.

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Old 11-27-2006, 07:58 PM
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Some areas just can't be cleaned internally without dipping which also has some major downsides. For these areas that are structurally sound but surface rusted you need to coat the interior so the rust stops-goes dormant. Cavity wax type sprays like cosmoline and 3M rustfighter are self healing, penetrate into crevices and seam them from oxygen. For those interior areas that can be cleaned epoxy primer is your best bet. Boxed areas and seams are the toughest to deal with.
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