Fusible Interfacing & Stabilizers at discount prices! These products work great for crafts projects such as fabric bowls, fabric vases and fabric boxes. Fast2fuse is a stabilizer interfacing with the fusible web already attached to both sides. It works best if you prewash your fabric. Use the heavyweight Fast2fuse for projects with straight sides and regular weight for projects with curved sides. Timtex is a stabilizer interfacing that is used to make your craft project stiff and sturdy. You need to use a fusible web such as "Wonder-Under" with Timtex. The fusible web adheres the fabric to both sides of the Timtex to make a fabric -Timtex "sandwich."