Packard Forum Index » Post-War (1946-54)

Debating best place to add thermal (mostly) foil type insulation to the doors. Believe some have added behind the door panel for convenience. Am wondering if that is the best place or would there be more benefit if it went all the way inside the door directly on the metal door skin?

With mostly sound insulation material (like Dynamat), I believe most mfgs recommend a piece attached to the metal to eliminate the drumming. Those usually have some kind of really sticky heavy rubber material. If using a foam core foil insulator which is supposed to help sound but is mostly thermal, what would you do.

Attachment is another question. Think the typical spray on stuff is out of the question if going directly to the door metal -- mostly because it is not weatherproof and there is already some of the old asphalt stuff on the inner doors. Would you use a mastic and if so, what type or have another suggestion.

you don't say what year and model, but based on what i saw on a 41, thermal was inside the roof. The door looks more acoustic, and stuck to the inside of the door skin. Acoustic works mainly on mass, thermal on stagnant air.
Insulating sheet, foil on one side only, 3M adhesive with type and application as they advised work on roof.

It's a 47 and mostly thermal because I'm adding AC. The roof and floor have already had the EZ Coolhttp://www.lobucrod.com/ product added. The only photo I see on their site shows the foil on the compartment or passenger side of the door. I am thinking that may be mostly convenience because they were not apart and modern doors do not have great access or lots of space to work inside anyway.

Mine are totally open at the moment so want to do the insulation before glass and associated frame pieces go back in if it would be better on the door skin. Just looking for opinions on which would work best keeping the hot out or cold in.

Seems like a poly based seam sealer or something like it would work. I gather it is really sticky and weatherproof. My body guy swears by the stuff. He calls it "Polyseamseal", and he often sprays it as undercoating on frame off restorations.
Mark

Check out Lizard Skin. It's a spray in insulator. I think that would be perfect for the inside of doors. It may work similar (and better) to whatever Packard originally sprayed on the inside of the doors.

the factory "AC pkg" material was a quilted material. The single foil sided sheel will be at least as effective. Again the door material was on the inside of the door skin, behind the window mechanism, and was sonic as much as thermal. The door panel itself makes a thermal barrier, as well as creating an air spece inside the door. I'd focus on the roof and floor. The jute and carpet will insulate there.

there is an accessory you may want to scare up or copy - a venetian blind for the rear window. I saw a 47 Clipper with one.

Like bkazmer noted, the most effective efforts would be spent on tinting or shading the glass.

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There is an idea. Finding an original in good condition could probably get interesting though. The glass is all clear so I would need to find some of the old 50's window shades or clip on sun screens to go with it. Anyone remember the sun screens? Very thin metal with rows of slits maybe a 1/16" wide by 1/2" long.

Here is the venetian blind from the 46 accessory brochure. I think Packard's copywriter is optimistic about the full vision being maintained at all times -- unless they are adjustable. Think a short driver might have different needs and angle on the slats than a tall one. Guess it doesn't matter though. The window is so small and high, looking to the rear is not that great to start with.

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Looks like the blinds are drawn closed in this illustration. Probably have good rearward vision with the blinds in a horizontal position.

(o{}o)

Second look makes me think the blinds are in a horizontal position with a badly focused outside view through them. I wonder if a commercial blind maker could make up a custom set?