I haven't tried this "recipe" yet but will be doing so soon. I don't remember the site that I got it from.
Things You'll Need
• Spray bottle
• Elmer's Glue-All
• Water
Combine equal parts glue and water in the spray bottle. Shake until they are completely combined.
Add 2 to 5 drops of dish soap to the glue mixture.
Swirl the mixture gently with the tube from the the head of the bottle until the dish soap has been thoroughly mixed in.
Tips & Warnings
• Remove the sprayer from the spray bottle after each use and flush it out with warm water. Cover the bottle with plastic wrap and a rubber band to keep the glue from drying out. This will ensure that the nozzle does not get clogged.
• If you find that the nozzle gets clogged while you are using the glue spray, add a few more drops of dish soap.
Here's a different recipe:
Spray Glue
Boil 3 cups water, add 1/2 tsp salt. Reduce heat to medium, whisk 3 Tbsp flour into the water, a pinch at a time. Continue whisking to break up the flour, and cook until it thickens to a consistency of egg white, or maybe gravy.
Cool to room temperature.
Fill a clean spray bottle 1/4 full of rubbing alcohol. Add water/flour to fill the bottle, leaving a little room to shake. Cap it. Shake well before each use.
I don't know how big your spray bottle will be, that's why I tell you to use 1 part rubbing alcohol to 3 parts water/flour.
This glue is wonderful for QAYG blocks. I cut my backing, lay my batting, lift the batting 1/2 way, spray the glue lay the batting back down onto the backing, and do the same to the other half of the block. When it's dry I can gently shake the backing/batting block and it stays glued. I am able to lay my top and quilt it on the machine. I Don't Know if it would work on a bigger quilt.
I've also read that Aqua Net hair spray is a great substitute for the spray basting. Again I haven't had a chance to try it.