I agree, QuiltE. It does seem like poor planning to say nothing of a lost business opportunity. I'd ask them there if they are going to get the product before the class or where you can buy it. If they put it on their supply list the least they can do it help you find it. You also might ask if there is another product that can be substituted.
Edit: I just went and looked at the quilt shop website. They have it listed under "Stabilizers and Adhesives" I"m betting its some kind of glue to help the seams from slipping. Maybe you could just show up with Elmers washable?
Second Edit: I just went and looked at their website. They have large refill bottles available. It's says it's a fabric glue. It looks like it's something the shop came up with. You need the small bottle to use it apparently. Something about the metal tip. I'd just take some Elmer's and be done with it.
Last edited by cashs_mom; 06-09-2017 at 10:07 AM.