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Edmund Optics - Manufacturing Services 8/24 LB
Photonics Dictionary

oleophobic

Oleophobic is a term used to describe substances or materials that repel or resist oils. The word oleophobic comes from the Greek words "oleo," meaning oil, and "phobos," meaning fear. Oleophobic properties are often associated with surfaces that can resist or repel the adhesion of oils and oily substances.

In practical terms, an oleophobic material would be one that prevents oils from sticking to its surface, making it easier to clean and reducing the visibility of fingerprints and smudges. This property is particularly useful in applications such as touchscreen devices, eyeglasses, camera lenses, and other surfaces that may come into contact with oils from the skin.

Oleophobic coatings are often applied to surfaces to provide these properties. These coatings are designed to minimize the adhesion of oils, making it easier to wipe away fingerprints and other contaminants. Silicones and fluoropolymers are commonly used in oleophobic coatings due to their ability to create a slippery surface that resists oil adhesion.

Understanding and incorporating oleophobic properties in materials can contribute to the development of products with improved cleanliness, easier maintenance, and enhanced durability, especially in applications where oil and grease are common contaminants.

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