a wide zigzag with the pieces side by side- or the new batting tape works great- and yes it works on poly- and dream green= all kinds of batts==not just cotton

I've read about the tape but haven't looked for it yet. Does Joanns carry it? Expensive? Worth the cost?

Haven't seen the tape in Joanns. I think you could use lightweight fusible interfacing since that is basically what the tape is. If you use it on poly batting I would use a very low heat.

I have used it on poly with my little bity iron on a low heat.Lot cheaper to make your own.

I butt the edges together, use a basting needle and whipstitch the pieces together. If I need to piece the batting I always stitch it; however, I have been told that some longarmers will lay the batting together when they have quilted to the area where the batting would need to be pieced and just quilt over it without stitching it together. But I would be afraid it would shift before I had it quilted securely.

This is what I do. It works great! :thumbup:

ditto!

That's what I do too.

I but them together and use a faggoting stitch.

I use strips of thin fusible interfacing.... on all types of batting and it works great! makes a nice smooth bond