Yes, the soft, elastic silicone phone cases can come from the silicone tube. The silicone tube contains liquid silicone material that can be molded and shaped into various products, including phone cases. The liquid silicone is poured into molds and then cured to create the soft and elastic phone cases. Therefore, the silicone tube is the source of the material used to make the phone cases. **

To open a silicone tube, you can use a sharp object such as a knife or scissors to puncture the seal at the tip of the tube. Once the seal is punctured, you can squeeze the tube to release the silicone. Be careful when using sharp objects to avoid injury, and make sure to clean the tip of the tube before and after each use to prevent clogging. **

Yes, silicone does stick to silicone. When two silicone surfaces come into contact, they tend to adhere to each other due to their similar chemical composition. This property makes silicone a popular material for creating airtight seals and bonding silicone-based products together. **

It is generally not recommended to apply new silicone on top of existing silicone. The new silicone may not adhere properly to the old silicone, leading to potential issues with adhesion and durability. It is best to remove the old silicone completely before applying a new layer to ensure a proper bond and a long-lasting seal. **

Yes, silicone can be applied on top of existing silicone. However, it is important to ensure that the existing silicone is clean and free of any dirt, dust, or residue before applying new silicone. Additionally, it is recommended to use a silicone primer to promote adhesion between the old and new silicone layers. This will help to create a strong bond and ensure a durable seal. **

Silicone lenses are a type of contact lens made with a silicone-based material, which allows for increased oxygen permeability to the eye. This can help reduce the risk of eye infections and improve overall comfort. Silicone hydrogel lenses are a specific type of silicone lens that also includes hydrogel, a water-absorbing material that helps keep the lenses moist and comfortable for longer periods of time. These lenses are popular for their breathability and comfort, making them a popular choice for contact lens wearers. **

To remove a silicone tube from a cartridge, first, ensure that the cartridge is empty and there is no pressure inside. Then, gently pull the silicone tube out of the cartridge, being careful not to damage the tube or the cartridge. If the tube is stuck, you can try gently twisting it as you pull to help loosen it from the cartridge. If necessary, you can also use a small tool, such as pliers or tweezers, to carefully grip the tube and help pull it out of the cartridge. **

Yes, you can apply new silicone on top of existing silicone as long as the old silicone is clean, dry, and in good condition. It is important to remove any dirt, dust, or residue from the old silicone before applying the new layer to ensure proper adhesion. Additionally, make sure to use a compatible silicone product to avoid any compatibility issues. **