I've never heard of the problems you say you have with Wonder-Under, for me it works perfectly every single time...and I use it a lot in many different ways. But if you don't like that brand, I would suggest maybe you should try some of the other fusibles instead. There are more and more coming out these days; thinner, stronger, easier to use. Inhaling air-borne particles of a spray adhesive just doesn't sound like something I would want to deal with.