BEACON ADHESIVES-Stiffen Stuff. A super quick fabric stiffening spray! Perfect for use on bows; lace doilies; silk flowers; and crochet work. Select the right degree of stiffness for any project by spraying additional coats to increase stiffness. Non-toxic and non-flammable. This package contains one 8oz spray bottle of Stiffen Stuff. Conforms to ASTM D4236. Made in USA.