NZquilter

Does anyone know if basting with Elmers School Glue work with poly batting? I have never used this method of basting but really want to try something easier than pin basting on the floor. I can't use 505 because I have small children and am expecting (so happy!) I have something like 20yds of poly batting that I must use up before I buy any more.
Here is my plan: I lay my backing down, wrong side up, and put glue on it in a grid. Then I lay my batting on. I will use an old rolling pin over the batting to work the glue in. Next I put another layer of glue on the top of the batting. I lay my quilt top, right side up, on the batting and with the rolling pin work the glue into all three layers. Since it is poly batting, I'm not sure about ironing it dry, so I was thinking of leaving it all laid out overnight, about 8 hours.
Does anyone see anything wrong with my plan? I would love some feedback and suggestions! Thank you!