<h1>Hydrophobic Coatings Explained</h1>Hydrophobicity refers to the property of “repelling or not mixing with water.” Coatings that create a hydrophobic or superhydrophobic surface provide several benefits to the coated surface and the underlying material. These benefits include reduced dirt accumulation, self-cleaning properties, enhanced resistance to moisture and corrosion, and increased durability of both the coating and the substrate. Understanding and measuring hydrophobicity requires examining the relationship between contact angle and the hydrophobic or hydrophilic nature of a surface.The surface characteristics of a material can give rise to various types of coatings, ranging from hydrophilic (water-attracting) to superhydrophobic (highly water-repellent) coatings. The contact angle of a water droplet on the surface of a coating is influenced by several factors, including the macro, micro, and nanoscale surface profiles, as well as the surface tension of the coating material. Surface tension refers to the elastic property of liquids that causes them to minimize their surface area.As shown in table 1, water has a higher surface tension compared to many common solvents used in the paint industry. This is primarily due to the strong hydrogen bonding between water molecules. Additionally, the microscopic surface geometry plays a critical role in determining the hydrophobic nature of a coating.Nature provides numerous examples of hydrophobic and superhydrophobic surfaces, with one of the most remarkable being the Lotus leaf. Water on a Lotus leaf exhibits a contact angle exceeding 150°, a key indicator of its extreme water-repellent properties. The self-cleaning ability of the Lotus leaf stems from its hydrophobic, double-layered surface structure. This unique design minimizes the contact area and adhesion forces between the water droplets and the leaf surface, allowing droplets to easily roll off, collecting dust and debris in the process. The micron-scale double structure of the leaf consists of needle-like projections covered by a waxy layer, enhancing its water-repellent and self-cleaning capabilities. Read more on our article on <a target="_blank" rel="noopener noreferrer nofollow" href="https://onyxcoating.com/technical-hub/hydrophobic-coatings-explained/">Hydrophobic Coating</a><img src="https://community-platform-bucket-prod.s3.amazonaws.com/5qi8lhius12w/User_1/embedment/7nlz2y8m5xwjl6g.jpeg">

<h1>Hydrophobic Coatings Explained</h1>Hydrophobicity refers to the property of “repelling or not mixing with water.” Coatings that create a hydrophobic or superhydrophobic surface provide several benefits to the coated surface and the un

Hydrophobic Coatings

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Onyx Coating Knowledgebase

Welcome to the Onyx Coating Knowledgebase, a dedicated resource designed for car care professionals and detailers seeking a deeper understanding of the chemistry and technical aspects behind our advanced protective products, including Paint Protection Film (PPF), Window Films, and Ceramic Coatings.This knowledgebase provides in-depth technical insights to enhance your expertise in applying and recommending these solutions to your clients. Here, you'll find comprehensive details on the formulation, performance, and installation techniques of each product. We cover everything from the molecular structure of PPF, the layers of window films, to the chemical bonding mechanisms in ceramic coatings.Whether you're an installer, detailer, or shop owner, our aim is to help you master the science behind these products so you can offer the highest quality service, optimize your workflow, and elevate the level of protection you provide to your customers.