I was making some flags for our youth group at church, and used the Ultra hold to put the designs on them, and it worked great,however, I did not have to sew the designs. the Heat&Bond Lite is great for appliques, etc.I use it all the time for baby bibs,etc. hope this helps.

I wouldn't sew through it. I do use the Lite.

If you sew pieces of several T-shirts together, they would not end up square, as the fabric is so stretchy it would never stay where you want it. So you take some kind of interfacing and iron it onto the back of that knit fabric. Now it feels and acts as if you were using quilting cotton. That's what you want. Sometimes an interfacing is ironed onto the back of an appliqued piece; wherever a little more stiffness is desired in the fabric.

One by one has a link that shows many different kinds of interfacing.
Also, see Stitchnripper's post above and check out the link.

Apparently my LQS didn't know there were different grades of HeatnBond. They are more of a craft place but sell many things quilters use.

I use heat and bond a lot, but I would not use Ultra on a quilt. It is a bit too stiff for my liking. But, may I ask why you are using a web product rather than a fusible interfacing? Usually you stabilize the T-shirt with a fusible interfacing and then cut out the piece. At this point you use it as if it were a 'regular' piece of fabric.

I spent a whole day going thru you tube videos to find decent ones on T-shirt quilt making so I would have something to tell my customers to watch. Most are absolute junk and some even seemed dangerous! But, a very basic one with lots of variations and simple instructions is our old standard - Eleanor Burns Quilt in a Day. Her YouTube video has all the basic info and also how to utilize different sizes (pocket logos, sleeve logos). You do have more than her normal amount of silly talk, but she puts in an awful lot of good instruction in the video.

Thank you klswift for your very enlightening posts. I will try to check out Eleanor Burns' site. I am learning a lot here. I have time to find out about these things and get the right stuff before I ruin Roseable's T-shirts.

I'll echo what's been said before. I do a lot of applique quilts and use the Lite version all the time, it's relatively easy to sew through. It leaves the quilt somewhat stiff, but that's not a problem for my wall hangings. I accidentally bought the Ultra one time and I'm still trying to use it up! Ultra is difficult, but not impossible, to sew through and much thicker than you would need. I've used it occasionally to adhere thick embroidered patches (like Girl Scout badges and the like...). I really should just toss it.

That said though, I agree that for a t-shirt quilt I would recommend fusible stabilizer instead of a product like Heat 'n Bond. Unless you're doing some small appliques on top of the shirts? Anyway, best of luck with your project!

My sister and I tried it on a project and had to stop sewing every few minutes to clean the glue off the needles. Then we used steam a seam and wonder under - both great - just follow the instructions

They have fusible stabilizer for t-shirts, much better option - is it called shirtailer?

I used it once on an appliqué for a wall hanging and it was awful! I had to keep cleaning my needle because it would gum up. I don't have any trouble when I use the light weight. I made a t-shirt quilt once, but I used a stabilizer for the back of the shirts.