Prepare your materials: Before using the silicone moulds, make sure you have all the materials you need for your project. This might include the resin, Jesmonite, concrete, or wax you will be using, as well as any additives or coloring agents. 2. Clean the mould: Before using the mould, it is a good idea to clean it thoroughly. This will help ensure that your finished product comes out clean and clear. To clean the mould, simply wipe it down with a damp cloth or wash it with soap and water. 3. Mix your materials: Follow the instructions for your chosen material to mix it according to the manufacturer's recommendations. If you are using resin, for example, you will need to mix the resin and hardener together according to the proportions specified in the instructions. 4. Pour the mixture into the mould: Once your materials are mixed, carefully pour the mixture into the silicone mould. Be sure to fill the mould completely, taking care to avoid creating any air bubbles. 5. Allow the material to cure: Depending on the material you are using, it may take anywhere from a few hours to a few days for the mixture to fully cure. Follow the manufacturer's instructions for the recommended curing time. 6. Remove the finished product from the mould: Once the material has fully cured, gently flex the silicone mould to release the finished product. If the mould is non-stick, the finished product should come out easily. If you are having difficulty removing the product, you can try using a small tool such as a toothpick or a butter knife to help gently pry it out. 7. Clean and store the mould: After use, be sure to clean the silicone mould thoroughly to remove any excess material. You can wash the mould with soap and water or wipe it down with a damp cloth. Once the mould is clean, store it in a cool, dry place until you are ready to use it again.