Aquarium silicone is generally considered safe for aquatic animals once it has fully cured. Once the silicone has cured, it becomes inert and should not leach any harmful chemicals into the water. However, it is important to follow the manufacturer's instructions for curing time before introducing any aquatic animals into the tank. As for skin contact, uncured aquarium silicone can be irritating to the skin, so it is important to handle it with care and avoid direct contact until it has fully cured. **

During a student internship in landscaping and gardening, you would typically assist with various tasks such as planting, weeding, watering, and pruning plants. You may also help with landscape design, installation of hardscape features, and maintenance of outdoor spaces. Additionally, you may have the opportunity to learn about soil preparation, pest control, and proper use of gardening tools and equipment. Overall, the internship provides hands-on experience in all aspects of landscaping and gardening, allowing you to gain valuable skills and knowledge in the field. **

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. **

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. **

Silicone is a synthetic material made up of silicon, oxygen, carbon, and hydrogen atoms. It is commonly used in various products like sealants, adhesives, lubricants, and medical implants. Silicone oil, on the other hand, is a type of silicone that is in liquid form. It is often used as a lubricant, in hydraulic systems, as a heat transfer fluid, and in various medical applications. The main difference between silicone and silicone oil is their physical state - silicone is solid or semi-solid, while silicone oil is a liquid. **