I always iron my quilts after spray basting. It keeps my fabric from moving when I machine quilt/ I never had a problem with it sticking permanent. I iron the quilt after I am satisfied with the placement. If I hand quilt a piece, this method keeps my fabric from moving for a LONG time

I use the Mettler TA101 spray and it has very little smell, but I had never heard of ironing after using. However, I only use it for floating the bottom of a quilt or a small quilt on my Innova. I have never used it on a sandwich for a DSM.

I use the 505 spray basting and am working on a queen sized quilt that I ironed the back before sandwiching the top. It made the backing and batting very smooth and wrinkle free and the top went on very well. I had not ironed before, I will from now on. I am using the warm and natural batting in this quilt.

I iron my front and back after spray basting. It ensures the batting is adhered evenly throughout. It the pressure of the iron and a bit of heat that really makes it all so smooth.

I do a lot of charity quilting and I spray bast ALL my quilts. I never iron them after spraying. It's not needed.

I iron after spray just to make sure I have all the wrinkles out, doesn't cause me any probs.

After watching her class, that's the way I do it. Much flatter.