I used spray basting on several quilts. One which the batting was low loft polyester with no trouble. I don't have an area in my house big enough to baste a quilt so I take it to my church and pull together several Sunday School tables and baste it on top of them. I don't have real good ventilation but there is no lingering odor. I've never had problem with over spray and just wash the tables when I'm done. They stay together and quilt just fine. Good Luck. I never thought about washing my quilts before giving them away but that is a good idea and I will do that from now on.