I took off the headliner on my '57. I saw then that the factory insulation/sound deadener was sagging in many places so I pulled most of it off.
But what's left is really in there.
So the question is, how clean should I scrape it before I can try to attach anything else on it? I mean, is some old glue residue OK or has it to be 'shiny' bare metal? Any pro-tips on getting the remaining stuff off or just a heck of a lot of scraping? A dull flat chisel seems to work quite well but it's not very fast.
Would also appreciate tips on new material. Especially what not to use / what will fall off in a year
I've never before bothered to use sound deadening so it's all new to me.
__________________ "Rust never sleeps"
'57 Bel Air 4D HT, 265 PowerPack + 3-spd man.
Last edited by Cheapskate; 10-31-2019 at 04:10 PM..
I used heat gun and scraper. I had a dust mask on, just in case.
Applied a reflective insulation from Carinsulation (used to be a sponsor). Used 3-M spray adhesive, and it's stuck for a couple of summers so far with a black roof.
The butyl rubber mat (Extremedynamat, etc) is mostly useful for sound deadening (minimizing resonation noise from the panels you put it on)..
The air-pocket filled 'bubble' type material primarily will serve as a thermal insulation, whereas the foil backing (on either or both) will help with thermal insulation against radiation as well.
Keep in mind that if the bubble insulation with foil facing, that the foil facing does absolutely nothing to reflect heat if it is touching the roof or the sound deadening material. You need an airspace between the two for maximum insulating qualities.