Scientists invent ice-repelling coating for windscreens

Researchers at the University of Michigan have developed a new spray-on ice repellent coating that is claimed to prevent windscreens being coated by ice in freezing temperatures.

The new repellent, claimed to have icephobic properties, is said to be rubber-based and prevents ice-build up sticking to slippery surfaces. A windscreen coated by the substance is cleaned, according to the scientists, by the force of gravity or a light breeze.

Speaking to tech blog Engadget, one of the scientists who helped develop the new treatment, doctoral student Kevin Golovin, said: "Researchers had been trying for years to dial down ice adhesion strength with chemistry, making more and more water-repellent surfaces.

"We've discovered a new knob to turn, using physics to change the mechanics of how ice breaks free from a surface."

The first application is expected to be household and industrial freezers, in which the repellent increases the appliance's efficiency by up to 20 per cent.

The researchers are already planning an automotive and aviation application for the repellent, which could reduce the need for de-icing of aircraft in cold climates but, according to associate professor Anish Tuteja, there’s still some work before the repellent will be approved.

"Using this technology in places like cars and airplanes will be very complex because of the stringent durability and safety requirements, but we're working on it."