McElroy did not invent the glue. She may have designed the bottle/tip, but the glue was and is manufactured by a glue company that specializes in water based glues like Elmer's. After the sale of Glue Baste it...Ms McElroy stated in public, that the glue was, indeed, just like Elmer's glue. I met with the company that manufactured the glue. It is water based, and they are particular about the water they use....no salt, chemicals etc. They filter all of their water sever times before making the glue itself. Roxanne Products Company is no longer in business. Not sure who purchased them several years ago. I am glad for the bottles and tips! will keep filling with Elmer's.