Water-rejecting

Water-rejecting describes a surface, material, or substance that actively repels or does not allow water to be absorbed, penetrate, or adhere to it. This property results from the material's inherent chemical composition and surface structure, causing water molecules to experience repulsive forces, leading to the beading or runoff of water. The effectiveness of water-rejecting materials is often measured by the water contact angle, with higher angles indicating greater repellency. Such materials are widely used in various applications to protect against moisture damage, improve performance, or enhance functionality.

Water-rejecting meaning with examples

• The waxed canvas tent's water-rejecting properties kept the interior dry, even during a torrential downpour. Water beaded up and rolled off the surface, preventing any moisture from seeping through. This was critical for keeping our sleeping bags and other gear protected from the elements, allowing us to camp comfortably even in harsh weather conditions. The wax treatment significantly improved the tent's longevity.
• The hiker's water-rejecting jacket provided crucial protection from the rain and wind. The specialized fabric repelled raindrops, causing them to bead and run off instead of soaking in. This kept the hiker dry and comfortable during a long trek, which also helped to regulate their body temperature. The material's breathability also prevented overheating.
• The car's windshield was treated with a water-rejecting coating, resulting in improved visibility during wet conditions. Raindrops would easily slide off at speed, reducing the need for constant wiper use. This enhanced safety by providing a clear view of the road and surroundings. This coating also made cleaning the windshield much easier, as dirt and grime were less likely to stick.
• The water-rejecting treatment applied to the building's exterior prevented water damage and reduced the growth of mold and mildew. The material's durability and resistance to moisture also extended the lifespan of the building. Regular application of such coatings protected the structure, reduced maintenance costs, and maintained its aesthetic appeal.