How to Obtain the Required Coating for Fasteners?

1.Surface Preparation
Cleaning: Remove oil, rust, and contaminants via degreasing, sandblasting, or pickling.
Activation: Enhance substrate reactivity to ensure coating adhesion.
2.Coating Selection
Electroplating (e.g., zinc/nickel plating): Electrolytic metal deposition for corrosion resistance and aesthetics.
Hot-Dip Galvanizing: Immersion in molten zinc for thick protective layers, ideal for outdoor use.
Dacromet: Electrolytic-free zinc-based coating with high-temperature resistance.
Phosphate Coating: Improves lubrication and wear resistance, common in automotive applications.
3.Coating Process
Apply via spraying, dipping, or electrostatic adsorption, ensuring uniform thickness.
4.Post-Treatment
Curing: Bake or UV-cure to enhance durability.
Testing: Validate quality through salt spray tests, thickness measurement, etc.#fasteners #factoryproducts #factory #factorywork #machine #hardware #coating #electroplating #Hot-DipGalvanizing #Dacromet # Salt Spray Test