Volume 93 Issue 36 | p. 32 | Concentrates
Issue Date: September 14, 2015

An Antismudge Coating Free Of Fluorine

Materials Science: Polyurethane-silicone coating wards off fingerprints, ink, paint, and water without persistent fluorine-based chemicals
Department: Science & Technology
Keywords: antismudge coatings, fluorine-free coatings, polyurethane

To keep windows and walls free of stray marks and fingerprints, people often turn to antismudge coatings that are capable of repelling both water and oil. To date, however, most of these coatings have used fluorine-based chemicals to achieve their dual oleophobic and hydrophobic properties. Such chemicals can be expensive, and because they are extremely stable, they have been shown to accumulate in the environment. Seeking to prevent smudges without using fluorine-based materials, Muhammad Rabnawaz, . . .

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