LDPE stands for Low-Density Polyethylene, which is a type of thermoplastic made from the monomer ethylene. LDPE is commonly used in various applications due to its flexibility, transparency, and chemical resistance. LDPE is often used as a core material in composite panels, particularly in the construction industry. Composite panels with LDPE polyethylene cores are known for their lightweight properties, making them suitable for applications where weight is a concern. Additionally, LDPE cores provide insulation and soundproofing properties, enhancing the performance of composite panels in building construction. However, it's essential to note that while LDPE offers certain advantages, it may have limitations in terms of fire resistance and structural strength compared to other materials used in composite panels, such as aluminum or fire-retardant cores. Therefore, the selection of materials for composite panels depends on specific project requirements, including regulatory standards and performance criteria.