I have been glue basting for a long time. I don’t paint it on or dilute and spray. I drizzle it from the bottle in a grid or some pattern that mimics pin basting. As in glue every 4 or so inches. Sometimes it looks wrinkled but I have never gotten a pleat. I wash the finished quilt in machine on warm and sometimes pre soak for 15 minutes and am always happy with the result.