Polyethylene plastic is a type of plastic that is commonly used in the manufacture of dock parts such as floating docks, dock bumpers, and dock ladders. It is a strong and durable material that is resistant to UV radiation, water, and extreme temperatures, making it ideal for use in marine environments. Polyethylene is also flexible, allowing it to absorb impact and resist cracking and breaking. It is easy to clean and maintain, and can be recycled at the end of its life. Polyethylene plastic dock parts are often preferred over metal or wood because they are lightweight, easy to install, and require minimal maintenance. They are also an affordable and long-lasting choice for use in both residential and commercial dock systems.