Elmers Washable School Glue is a very heavy starch product.
It will hold the layers of a quilt together while you quilt it and yes it can feel almost like a light weight cardboard depending on how heavy handed you are using it.
After you finish quilting a quilt it is usually washed to remove the glue, other fabric starch if it was used, any marks and dirt that may have gotten on it.
You don't want to leave the glue in the quilt after it is finished. The quilt will be stiff and not drape well.
Do not substitute any other glue for Elmers Washable School Glue.
Look for Sharon Shambers methods to teach all her tips on using glue. She can be found by doing a You-tube search. You won't be disappointed.
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