Waterproof fluorinated elastomer coating heals itself

Ann Arbor, Michigan – A self-healing, water-repellent, spray-on coating based on a fluorinated polyurethane elastomer has been developed by scientists at the University of Michigan.

The scientists claim it is hundreds of times more durable than alternatives, and a start-up company, HygraTek, is being set up to commercialise the invention.

Water-repellent finishes are rarely strong enough for applications such as clothing or ship hulls. Most work because their surface geometry causes water droplets to roll off. But this leaves them fragile to abrasion, and the Michigan team…

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