Development of Innovative Fluoropolymer Based Coating Solution to Improve the Properties of Fasteners

Year 2025, Volume: 1 Issue: 2, 1 - 13, 20.12.2025

Etkin Can , Metehan Atagür

https://izlik.org/JA52GY22ZJ

Abstract

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.

Keywords

PVDF , Fluoropolymer solution , Salt spray test , Coefficient of friction

Ethical Statement

"The authors confirm that no ethical approval was required from institutional committees for the completion of this research. Additionally, the authors also confirm that there are no conflicts of interest related to this study, and all authors have approved the final version of the manuscript submitted for publication.

Supporting Institution

This research was supported by Norm Coating Engineering Department, which provided technical resources, laboratory facilities, and invaluable professional support throughout the duration of the study. The authors gratefully acknowledge Norm Coating for their significant contributions and collaboration that made this work possible.

Thanks

The authors would like to express their sincere gratitude to the Engineering Department of Norm Coating, particularly to Hüseyin Azar, Nedim Uzgur, Ogün Sinan Firuzbay, Yaren Özalpaşan, Dilara Tilkioğlu, Emre Ceylan, Yasemin Kireççi, Erden Yerdelen, İsmail Sürücü, Sercan Pağaçacı, Yiğit Can Yaman, Efe Uslucan, Ceylin Kınık, Ceylan Özçelik, Büşra Nur Erdoğan, Merve Halimler Topçu, and Mehmet Ege Şap, for their invaluable technical support and collaboration throughout this study. Their dedicated efforts and insightful contributions were instrumental in the successful completion of this research.

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