Technical Interior panels

I need to make new door, kick and rear interior panels for my 40 Ford Coupe. Any suggestions on what backer board to use? Thanks!

 

I've tried several commercially-available backer boards for interior panels (like stuff that's common at home improvement stores) and I've never really been thrilled with it. A year ago I got a bunch of blank sheets from an auction of a closed upholstery shop and that's the stuff I want to use from now on but I don't know where to order it, I just got a pile of their leftovers.

I'd also like to know where I can order bulk, blank sheets of door panel backer boards. The stuff I got was in a shipping box so they clearly ordered it from a supplier and had it shipped in but I don't think there was a label with the source on the box anymore.

 

https://www.jalopyjournal.com/forum/search/708732939/?q=Interior+panels&o=relevance&c[***le_only]=1

 

I found a good product that you will find in the Lowes's cabinet idle. Its's a very hard but slightly flexible white plastic composite board. It's like masonite board but hard plastic. They use it to resurface old cabinets or something. I just found this stuff a few months ago by accident. Cuts easy with a jigsaw.

 

I like Sintra/PVC sheet, got it from a local sign shop as 1/8"x4'x8'. Waterproof, glueable with solvents or superglue and moldable with a hairdryer/heat gun.

 

When I had my Roadster trimmed they used foamex board. Water proof, glue able, and can be be folded to some extent.

 

I've used ABS plastic sheets in the past, 1/8". Keeps its shape has no fear of moisture. There's a local plastic supplier that sells 4x8 sheets for less than a hundred bucks.

 

^^^^^

 

Thanks for the suggestions.

 

I had a friend that was buying it from an upholstery shop.

 

ABS plastic is what I used for my 40.

 

I have always used this type of material:
https://www.miamicorp.com/buy/produ...-32x48/CLENC985d014b7ce086c7?text=panel+board

 

PVC is safer for us and the environment, if you care=and you should https://www.benjaminfranklinplumbin...at-s-the-difference-between-abs-and-pvc-pipe/

 

For the guys using plastic, are you able to sew through it? Or are you just strictly gluing material to it?

 

Wonder what 2.54 mm is in fractions?

 

Well, if 2.54 cm = 1" then 2.54 mm must = 1/10 " or 0.1".

 

I used the 1/8” plastic for headliner. Not s***ching through it…i glued the fabric over..

 

Has anyone used 1/8" (3mm) thick MDF board.
My main concern would be its resistance, or lack of, to moisture (rain) sneaking down past the windows.

 

I wouldn't use that.

 

Thanks. Now, how close is this 1/10 or 0.1 to say, 1/64, 1/32, 1/16, 1/8, 3/16, 1/4? You know, the normal fractions that are printed on machinest scales, rulers, tape measures?

 

1/16" = .062 1/8" = .125

 

@Annette Chaplin

So I misunderstood your intent. I'm used to working in decimals and have scales, rulers, and tape measures printed in decimals. Here are some fractions (in 128ths of an inch from 1 to 20) and their decimal equivalents. As you can see 3/32" and 7/64" are the commonly used fractions that are closest to 0.10". Note that 13/128 is REALLY close but who can/would actually use 13/128?

1/128 = 0.0078
1/64" = 0.0156
3/128 = 0.0234
1/32 = 0.0313
5/128 = 0.0391
3/64 = 0.0469
7/128 = 0.0547
1/16 = 0.0625
9/128 = 0.0703
5/64 = 0.0781
11/128 = 0.0859
3/32 = 0.0938
13/128 = 0.1016
7/64 = 0.1094
15/128 = 0.1172
1/8 = 0.1250
17/128 = 0.1328
9/64 = 0.1406
19/128 = 0.1484
5/32 = 0.1563

 

Decimals are much more exact.

 

Only use MDF if you want to do the work over again in short order!

 

Back i the days it were called masonite, but now oil hardened board, i used that making doorpanels for my Chevy, easy too work with and it can handle some water

 

4'x8' x 1/8" thick plastic-coated smooth white hardboard. About $19 at Home Depot and Lowe's.

I covered it with black naugahyde that matched the seats.

 

Make it easy on yourself and use 1/8 inch PCV . Do it once and you’re done. Don’t even need a water barrier on the door. Easy to cut with box knife are saw.

 

Don’t use it, if it gets damp it sags and gets waves in it. PVC. Or ABS

 

Thanks for all of the great recommendations.
Though the MDF is ~10% of the price of the PVC, that becomes insignificant in the big picture when it all goes wrong.

 

Ah, I see now sez the blind man. So that Miami Corp upholstery supplier, Cowlboard Waterproof OEM Natural is a, "whisker", or "two of those little marks" under a 1/8" (eighth of a inch). Good.

Now if Miami Corp only stated so in their item description thickness. Look how much confusion would have been eliminated!

Now the big question. Other than "kabinenroller" roller up there in the cold country. Has anyone else used this Miami Upholstery backing board?

Thanks