Fastener coatings and surface treatments are critical for extending the service life and performance of fasteners, especially when base materials require enhanced protection or altered friction characteristics. Zeron Fasteners offers a comprehensive range of applied finishes, from barrier protection like Hot Dip Galvanizing and Zinc Plating, to specialized non-stick coatings like PTFE (Xylan/Teflon). These coatings primarily serve to prevent corrosion, reduce the coefficient of friction (anti-galling), and electrically isolate fasteners in dissimilar metal assemblies. The correct coating is vital for ensuring reliable torque and tension during installation, particularly in the oil and gas, petrochemical, and marine industries.
| Coating Type | Standard/Finish | Key Property | Application Highlight |
|---|---|---|---|
| Fluoropolymer (PTFE) | Xylan, Teflon, FlouroKote | Low Friction, Excellent Corrosion Barrier | Offshore, Petrochemical, Chemical Flanges |
| Metallic Barrier | Hot Dip Galvanizing (HDG) | Sacrificial Corrosion Protection | Outdoor Construction, Structural Steel |
| Electrochemical | Zinc Plating (Yellow/Blue/White) | Cost-Effective Corrosion Protection | General Assembly, Automotive |