Passivation solution passivates the surface of a metal. It can improve the corrosion resistance of stainless steel, hot-dip galvanized sheets, pipes, workpieces, and prolong the service life of them. Specifically, passivation of hot dipped galvanizing is to form a protection film on the surface of galvanized workpieces. It can increase the anti-corrosion, improve the aesthetic appearance of the workpieces.
The effects of passivation on hot dipped galvanized pipe
1 Enhance the adhesion of the passivation film. After being coated to the galvanized pipes and dried, the passivation solution will solidify into a protective film and safely adhere to the surface of zinc layer.
2 Play an assisted role in corrosion prevention. It can prevent the pipes from external moisture, gas and rain. Advancing the anti-corrosion of the products.
3 Passivation can raise the fingerprint resistance of the hot dipped galvanized pipe. A passivated surface is less likely to show fingerprints and other marks, which can help maintain the appearance of the product and reduce maintenance needs.
Comparative photos of passivation and non passivation
Galvanized pipes not been coated passivation solution will get rusty, damp, dirty, even hairy after a period of time.
Galvanized pipes coated with passivation solution are more durable and have a good appearance.
Overall, passivation on hot-dipped galvanized pipe is an effective method for enhancing its durability and lengthening its service life. With improved adhesion of the passivation film and increased resistance to fingerprints and other marks, the product can use better and more beautiful for longer periods of time.
