[Coodeville]

I just took a look at my driver seat back for my 1970 Coupe Deville. The cover has been removed and it appears that the sewfoam was never glued to the leather. I can't find any signs of dried glue between the foam and the leather. is this how they were constructed back then?

[DanTwoLakes]

Yes, some of them were. It all depends on what company made the seat covers. Some of the time back then the foam was just sewn to the pieces around the outside perimeter of the piece with a serging machine. This was mostly done on leather seats that had the pieces cut with cookie cutter type dies along with the foam. In any event, there needs to be some way to hold the fabric and sew foam together until the seat cover can be sewed. After that, it doesn't matter.

[trimmer2]

Doing auto interiors for 30 years and have never seen a reason to glue leather when making pleats.
Bruce

[Coodeville]

Originally Posted by DanTwoLakes

Yes, some of them were. It all depends on what company made the seat covers. Some of the time back then the foam was just sewn to the pieces around the outside perimeter of the piece with a serging machine. This was mostly done on leather seats that had the pieces cut with cookie cutter type dies along with the foam. In any event, there needs to be some way to hold the fabric and sew foam together until the seat cover can be sewed. After that, it doesn't matter.

So I guess this will make it easier to take apart to make a pattern

[DanTwoLakes]

That depends on if the edges were run through a serger. If they were, they are very hard to take apart.

[Coodeville]

Originally Posted by DanTwoLakes

That depends on if the edges were run through a serger. If they were, they are very hard to take apart.

It looks like 3 stitches an inch to me. but then again, I have not yet attempted to disassemble it yet. i'll let you know.

[DanTwoLakes]

It may not be serged, just sewn down. If the stitches look like pyramids chained together, it has been serged.