Sugru Original Formula is the worlds first mouldable glue that sets strong by turning into silicone rubber. It's specifically designed to bond permanently to almost anything including ceramics, metal, glass, wood, plaster, stone, most plastics, some fabrics and even flexible materials. Its easy to use. Mould it like play-dough into any shape or space you want to fill. You have 30 minutes to fix, bond, make, seal, mount, hang and customize... enough time to reposition and make it perfect. In 24 hours, it cures into a strong and durable, flexible silicone rubber that stays stuck. The mouldable glue is waterproof, heat & cold resistant, and can holds up to 4.4 lbs. The original formula also sets stronger and faster than Sugru Family-safe | Skin-Friendly Formula.