What are the vapor transmission rates of polyester fabric in outdoor trash cans?

Polyester fabric is widely used in outdoor trash can liners and covers due to its durability and resistance to environmental factors. However, its vapor transmission rate—how effectively it allows moisture vapor to pass through—is a critical factor in preventing moisture buildup, odor, and degradation. Typically, polyester has a low to moderate vapor transmission rate, which means it is not highly breathable compared to natural fabrics like cotton. This can lead to condensation inside trash cans, especially in humid conditions, potentially accelerating waste decomposition and causing unpleasant odors. For outdoor applications, polyester fabrics may be coated or laminated to enhance water resistance, further reducing vapor permeability. Manufacturers often balance this by incorporating ventilation designs or mesh panels. Understanding these rates helps in selecting materials that manage moisture effectively, ensuring longevity and hygiene in outdoor waste management solutions.