Do steel strapping seals require surface preparation?

Steel strapping seals usually require surface treatment to enhance their corrosion resistance, wear resistance, and overall service life in practical applications. The following are explanations from different perspectives:

1. Improve corrosion resistance performance
Rust prevention treatment (such as galvanizing): Steel exposed to air is prone to rusting, especially in humid or salty environments where it is more prone to corrosion. By using methods such as electroplating and hot-dip galvanizing, a protective layer can be formed on the surface to effectively prevent corrosion.
Phosphating treatment: forming a dense phosphate film on the surface of steel to improve its corrosion resistance, commonly used in industrial seals.

2. Enhance wear resistance and scratch resistance
Shot peening or hardening layer: can improve the hardness and scratch resistance of the steel surface, suitable for high friction and high tension bundling occasions.
The treated surface is less prone to scratches or metal shavings due to tension or friction, which is beneficial for maintaining stable tension and sealing effect.

3. Enhance aesthetics and recognizability
Surface painting or colored coating can make the seal look neater and more textured.
At the same time, seals of different specifications, strengths, or uses can be distinguished by color identification for easy management and identification.

4. Improve compatibility with other materials
Surface treatment can reduce chemical reactions or electrochemical corrosion between steel and other materials such as rubber gaskets, plastic packaging, and tied objects, extending the overall system life.
Prevent galvanic corrosion of seals when in contact with materials such as aluminum and copper.

5. Improve the subsequent painting or marking effect
Phosphating or sanding treatment can enhance the adhesion of coatings, labels, and identification inks on steel surfaces, improving marking and recognition.

6. Protection requirements under special working conditions
High temperature area: heat-resistant coatings such as ceramic coatings, oxide films, etc. can be used to improve stability at high temperatures.
Chemical environment: The surface can be coated with special coatings to prevent chemical corrosion, such as epoxy resin, polytetrafluoroethylene (PTFE), etc.