romanojg

I would only use the Aurifil or silk, you want a light thread but one that will hold up. These will do that. Aurifil only has 2 strands.

Kitsie

I use Invisifil for all my hand applique if I don't want the stitches to show. Very thin! Readily available at Soft Expressions. I think it is good for machine applique, too.


http://www.wonderfil.ca/invisafil/

QuiltE

I've even used it for FMQing without any problems!

PS Stitcher

I too use the Bottom Line thread. I love it for applique and English Paper Piecing!

citruscountyquilter

I use either silk or Superior Bottom Line which is polyester for hand applique. I see that most of the answers are referring to hand applique but dflynn didn't specify that she was doing hand applique. If you want to machine applique then use a monofiliment thread. It comes in clear and smoke color. Superior makes a good one.

calla

I have purchased from Honey Bee silk. Nice to work with

1screech

I love to use silk on hand appliqué. It buries in the fabric and becomes invisible.