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Used across sectors and product categories, the substances are often found in cookware, firefighting foams, food packaging and apparel and footwear for waterproofing and oil repellency.—Kate Nishimura, Sourcing Journal, 16 July 2025 But to Muzio’s point, terrestrial birds use water repellency, too.—Ian Rose, Smithsonian Magazine, 10 June 2025 Muzio was lead author of a 2024 study published in the Journal of Avian Biology, based on his PhD research, that reviewed water repellency in bird feathers.—Ian Rose, Smithsonian Magazine, 10 June 2025 Performance rainwear remains at the forefront, with lightweight ripstop styles featuring a waterproof membrane, full seam sealing, and waterproof zippers, while other designs integrate mesh liners for breathability and a specialized membrane for water repellency.—Lisa Lockwood, Footwear News, 22 May 2025 See All Example Sentences for repellency
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