Using sew foam

[jeepdoc]

Ok trying to get better results by using sew foam. First of all which way is right? material side to back of vinyl or foam side? I did a rounded back bucket seat from my boat this weekend in which I gluded lightly the out side back foam side to the back of the vinyl. By the time I was done sewing it togeather it was wrinkle city. The foam I used was 1/2in on the outside back and 1/4in on everything else the 1/4in looks good.
Thanks Jeff

[jojo]

You glue the foam side to the vinyl. Then what I do is sew all around the pieces as close to the edge as possible before I sew the pieces together. This compresses the foam and makes it much easier to get under the foot and see that you have the pieces aligned. Not sure why you are getting wrinkles....are you using a walking foot sewing machine?

[jeepdoc]

Yes im using a singer 111w the wrinkles are out in the middle of the piece like maybe when i folded the material to sew it is that normal and just need to steam them out? the piece was pretty large so folding was a must to get it all sewn up. What glue do you use i used some 3m 77
thanks again

[Miami Mike]

Foam side to fabric or vinyl.  the scrim of cloth on the otherside of the foam holds the stitch from cutting into the foam.

[scottymc]

You glue the foam side to the vinyl. Then what I do is sew all around the pieces as close to the edge as possible before I sew the pieces together. This compresses the foam and makes it much easier to get under the foot and see that you have the pieces aligned. Not sure why you are getting wrinkles....are you using a walking foot sewing machine?

What jojo said, but I never glue it, just lay the material flat and sew around the edges.

[MinUph]

I don't personally use foam on an outside back unless it has some sort of stitching on it. I do sew the perimeter as it helps keep things flat and in place. Glue might or might not be used depending on size and shape. It really only helps keep the sandwich together while working. Your wrinkles are more likely from the sewing or you haven't put the cover  on yet to stretch it into shape.

[jeepdoc]

Thanks for the replies ill try just sewing next time the only reason i used that foam on the outside back cause i was too cheap to replace the foam. Also modified the seat by removing the useless headrest so the sew foam is hiding some foam work should of just replaced the seat foam HaHa.
Another thing I found by glueing the vinyl to the foam was that I may have streched the vinyl slightly because after adding the foam to my cut out pieces to be sewn found that my parts grew slightly throwing off my patterns

[Peppy]

If I wanted to spruce up crappy foam I would have glued the sew foam over the crappy foam. Just because it's called 'sew foam' doesn't mean you have to sew it.

[Mojo]

You glue the foam side to the vinyl. Then what I do is sew all around the pieces as close to the edge as possible before I sew the pieces together. This compresses the foam and makes it much easier to get under the foot and see that you have the pieces aligned.

Ditto.....

Chris

[JuneC]

Always be careful using sew foam as a liner on inside curves.  Especially with vinyl.  I've been bitten numerous times by the foam tricot not having as much stretch as the vinyl.  Cut all pieces, sew/glue/staple to vinyl, sew together, and the tight tricot will cause your vinyl to wrinkle on the inside of the curve.  The foam sheet needs to be oversized.

June