1952-59 Ford Any idea what fills these 5 decklid voids?

I ***ume some sort of insulation was glued in there. Anyone have any pics or a name or a vendor? Just trying to get an idea.

 

All I've ever seen there from the factory is a waffle pattern tar paper.

 

My car had a factory heavy sprayed-on material that was painted. Maybe 1/8 thick, and hard. Very much intact when I restored the car, couldn't loosen any of it, so I left it figuring I'd do more damage trying to get it off. Looked pretty good after painting, but about 3 years later, it started falling off ??!! urgh!

 

Thanks guys! I s****ed all the old glue off today. I think I'll apply this stuff to the voids.
Black neoprene rubber padding - self stick

The whole decklid will be painted body color (Firemist Green), so I think it'll contrast nicely.

 

I guess it was more of a sound-deadener than anything else. The hoods have something similar. Mine was toast, really down to scant adhesive which sanded off easily.

 

That's what I was looking for, thanks Zax! I guess the slits are so you can shove 'em down under the ribbing. Maybe I'll use some thin DynaMat and cover that with the black neoprene.

 

Not hardly at this stage yet, but using one or both Lizardskin products should. help sound deadening and heat. Plan to possibly use it under the hood, once I can get an idea of underhood temps, and if it would increase or decrease temp. Maybe something to research? I already used it on my wagons roof to protect from our blazing sun, but would it help when heat is generated from within? If interested I would call Lizardskin.

 

If the question is what is the correct original application, I'm pretty sure I've only ever seen the spray on sound deadener that is used and it would be the same material inside any of the panels. Unfortunately I checked my books and I don't have a factory manual illustration confirming it for the trunk lid. Just what I've seen in vehicles, and I'm going to attach a photo of my unrestored trunk lid on my '55 Montclair 4-door.

What I do have an illustration from a factory manual is the hood, which has an insulation pad on the center panel only.

The source for where sound deadener and body sealer was originally applied would be the body try & sealant ***embly manual which is available as a Jim Osborn reproduction.