Hello: Yes, I know, focus on one thing and get it done and move on. I should but I can't help it. I do all different portions from day to day. Anyway, I have been making some progress on a headliner (I think) but I am not all that familiar with spray foam (Great Stuff). I used a can on the house once or twice. I know it keeps expanding well after being sprayed and there are different Great Stuff versions. Having said all that, my model 'A' only needs a little toward the front and more toward the back if I use it at all. My thinking is this: I put up small metal frames or struts for shape. Then I line the roof with cellophane or aluminum foil so I get I nice form fit. Then I screw on temporary sheets of fairly thin metal from front to the back of the car along the interior roof. The sheet metal is similarly covered with cellophane or aluminum foil on the side facing out. On my Tudor, there isn't much metal roof so it shouldn't be much of an issue. Here's the tricky bit (for me). I then plan to spray foam between the temporary sheets and the car body, letting the foam expand to fill the space. Once dry, I remove the thin metal sheets, exposing the foam filler that is now shaped to the curvature of the inner struts/braces and the outside hull. If all goes well, the panels will be removable so I can cover them in vinyl and set them back in place. They might require a bit of support here and there but the lightness of the foam shouldn't be too hard to deal with that. My only worry at this point is knowing how much foam to spray in ? I think the foam is ideal for the purpose but if I spray not enough or too much, it could create more of a headache than a solution. If the top sides go well, I'm hoping to do the inside rear as well. Individual light, custom shaped, removable panels would be great to work with. I'm just not that great with the rate of foam expansion. Your thoughts ? Maybe I'm way off with this but I think it could work really well if done right.
-- Edited by Cuddles on Saturday 28th of March 2020 07:14:34 PM
In theory it sounds good, I hope it works well in practice Cuddles. My experience with that stuff is that once it touches something - anything - it's there forever so cover everything well.
I hear you. It is frightening to work with because I have to guess how much it will expand. I know I can buy different expansion rates for different jobs but not for hot rods. It will be interesting. I hope I can supply the group with tips from a successful application. I'll let you know either way.
I wouldn't do that if I were you.
You're in for a messy suffering.
Google auto interior work. There is so much out there that I'm certain you'll find the "right way" to do it.
That stuff sticks to every thing. It does not come off anything. Ask my clothes about that. It will not cure in a closed environment either. I have drilled into steel door frames that were sprayed 4-5 months previous to me getting to site. I drill a hole to install the hardware and out comes this goo like product.
Me, I work in construction and use this stuff on a regular bases. Got to use the right stuff for the right job. Great Stuff is not that good for anything. I hear rumors that it will shrink over time as well. But I have never taken anything using it apart so no experience there.
Geez, I seem to have a knack for finding the wrong way to do everything. If not for this site and all the kind people here, I'd be in a real mess. OK, back to the drawing board. I will google auto interior work and learn some more. I'm trying to do things right. Thank you everyone.
