What are the challenges of maintaining water repellency in aged canvas benches?

Maintaining water repellency in aged canvas benches presents several challenges due to prolonged exposure to environmental factors. Over time, UV rays, moisture, and dirt degrade the fabric's protective coatings, reducing its ability to repel water. Stains and mold growth further compromise the material, making reapplication of water-repellent treatments less effective. Additionally, wear and tear from frequent use weaken the fibers, leading to absorption rather than beading of water. Regular cleaning and specialized fabric protectants can help, but achieving long-term water resistance often requires deeper restoration or replacement of the canvas. Understanding these challenges is key to preserving the functionality and appearance of outdoor furniture.