Polyethylene is also used in industrial packaging to provide a different level of protection, which reflects efficiently on the product’s storage, logistics and handling. In this type of packaging, more attention is paid to the thickness and strength of material used. Polyethylene is also used in infrastructure, through non-pressure pipes. These types of pipes are suitable for non-pressure applications such as drain waste vent and sewer thanks to their smooth inner walls, which assure high gravity flow rates and minimize chances of developing clogs. Plastic pipes have sufficient strength for earth loads and high chemical resistance, and that means long-term use for sewer installations.