Smyrna Journal of Natural and Data Sciences 3062-4398 Dokuz Eylul University Reaction Kinetics and Dynamics Reaksiyon Kinetiği ve Dinamikleri Development of Innovative Fluoropolymer Based Coating Solution to Improve the Properties of Fasteners Can Etkin IZMIR KATIP CELEBI UNIVERSITY https://orcid.org/0000-0002-1916-457X Atagür Metehan İZMİR KATİP ÇELEBİ ÜNİVERSİTESİ, MÜHENDİSLİK VE MİMARLIK FAKÜLTESİ, MALZEME BİLİMİ VE MÜHENDİSLİĞİ BÖLÜMÜ, MALZEME ANABİLİM DALI 12 20 2025 1 2 1 13 04 22 2025 05 28 2025 Copyright © 2025, Smyrna Journal of Natural and Data Sciences 2025 Smyrna Journal of Natural and Data Sciences

Steel fasteners can be offered to the customer uncoated or marketed with various surface treatments such as polymer coating, zinc plating, galvanization, and chrome plating. These coatings in the market are applied not only to increase corrosion resistance, but also to provide different functions to the products. Topcoat chemicals used in fasteners are one of the best examples of this situation. Topcoat is often used as special requirements must be met that are not inherent in the base coat, such as the inclusion of pigments (e.g. black), high chemical resistance, low coefficient of friction and UV resistance.In this study, a polyvinylidene fluoride (PVDF) based fluoropolymer composite solution was developed which is operatable for the dip-spin method. Fastener samples were coated with dip-spin method. ISO 4042 torque-tension test was performed to determine the coefficient of friction for each sample. The wettability behavior of the coating was analyzed by contact angle measurement. ISO 9227 salt spray test was performed to determine the red and white rust formation period.

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