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Old 04-10-2012, 04:32 PM
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Seat Pad Construction for Bomber Seats

So now I need to make some backing boards for the seat bottom & back pads. My upholstery guy asked me to come up with something good and stiff. I think this is so his padding and cover work wont shift or look bad after they're installed, which I can certainly understand. The problem is I cant decide what to use. We talked about using 3/8 to 1/2 plywood. I'm worried that with plywood that thick that it will be almost impossible to bend, even if you soak it in water for awhile. He mentioned I could also use aluminum to make the panels.

The seat backs have a gentle curve to fit your back. The bottoms are mainly flat but they do kick up quite a bit right at your thigh.

So what would a suitable matrial be? Needs to be stiff. Right now I'm leaning towards the aluminum panels. I can get the stuff from work (paid for of course)so that's not a problem.

Does anyone have any suggestions for material or how to work it into the shapes/curves I need.


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Old 04-10-2012, 09:52 PM
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Maybe ABS plastic? I use it for all my panels. Its super tough, easy to cut and you can mold it to your seat profile with a heat gun.
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Old 04-11-2012, 11:05 AM
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PVC foamboard (expanded PVC) can be heated and bent at lower temperatures than ABS, and it's also way less expensive than ABS. A 4' by 8' sheet of 6MM pvc foamboard is about $60 from a sheet plastic supplier. You can cut it with standard woodworking tools, and it can be stapled to. It's also lighter weight. I would think 1/4" (6MM) thick would be plenty.

Here's some 3MM PVC foamboard formed with heat and used as a headliner. CLICK HERE

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Last edited by DanTwoLakes; 04-11-2012 at 11:14 AM.
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