Stitchnripper

If you put Elmers or Elmers Glue or Elmers Washable School Glue into the search box upper right, you will come up with lots of previous threads on this.

I am a convert to this method. I think it helps to remember that it takes the place of pin basting, not spray basting, so it doesn't have to cover every inch of the batting but just in strategic spots where pins would go. I drizzle it on in a grid pattern onto the batting, smooth it out, let it dry some, then move to the next section. I use a dining room table and some quilts are bigger than it, but, just go from the center out. Read up on it and then we can help you with specific questions.