What is the average lifespan of a polypropylene outdoor pet waste bin in coastal climates?

Polypropylene outdoor pet waste bins typically last 3-5 years in coastal climates, significantly less than their 7-10 year lifespan in milder environments. The accelerated degradation occurs due to two primary factors: constant UV radiation exposure and salt corrosion from ocean air. Polypropylene, while durable, undergoes photodegradation when exposed to direct sunlight, causing the plastic to become brittle over time. Simultaneously, salt particles in coastal air create microscopic abrasions on the surface and can accelerate chemical breakdown. Regular maintenance including monthly cleaning with fresh water to remove salt deposits and occasional UV-protectant sprays can extend the lifespan by 1-2 years. Positioning the bin in shaded areas and using bins with UV-resistant additives during manufacturing also significantly improves longevity. Coastal climate bins typically show visible signs of degradation within 2-3 years, including fading, surface cracking, and reduced structural integrity.