Smooth-On Sil-poxy Rubber Silicone Adhesive - 0.5 oz Tube One-component adhesive Made to bond silicone to silicone and other substrates and urethane plastics Works on Fabric, Ceramic, Plaster and much more! Sil-Poxy can be used repairing torn silicone rubber molds. Other applications include bonding silicone for prosthetics and animatronics.