Like Jawge said, Titebond 2 or 3, and burlap should be burlap. The way I apply burlap probably isn't the norm, but I soak the cut strip in warm water for a few minures while I apply the glue to the back of the bow. Then remove the burlap from the water, blot the excess water out with a towell, then clamp one end, stretch, and apply. I feel the wet burlap will "wick" in the glue better, and also allow you to stretch it out some--same with linen. Cloth doesn't retract as much as wet sinew or rawhide, but its a superstition I still practice. You can then "water-down" a second coat of glue and apply on top the burlap, either now or later after it dries. The main advantage to applying 2 thinned down coats of glue is you can control the thickness or density of the glue if you want to avoid having a really heavy backing. Sorry this is long winded. Eric