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Feb 24, 2026

Surface Treatment of Purlins

The surface treatment of purlins is an important step to enhance their performance. Common treatment methods include galvanizing, spraying, and hot-dip plasticizing, etc. Taking galvanization as an example, it is a treatment method that involves covering the surface of steel with a zinc layer, this method can effectively prevent direct contact between the steel and oxygen, moisture, and other chemical substances in the atmosphere, thereby extending the service life of purlins. However, it should be noted that the galvanization amount of steel-structure purlins has a significant impact on their performance and durability. An excessive galvanization amount may result in an uneven and incomplete zinc layer, failing to achieve an effective anti-corrosion effect. Moreover, an overly high galvanization amount may cause problems such as cracking and blistering on the steel surface, reducing its strength and service life. Therefore, the galvanization amount must be strictly controlled in accordance with national standards and industry specifications.

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The hot-dip plastic coating method is effectively demonstrated in the application of Huteng's hot-dip plastic anti-corrosion purlins. This process enables the formation of a tightly adhered plastic coating on the steel surface, which not only effectively isolates external moisture infiltration, maintaining roof dryness and waterproofing, but also fully exhibits its exhibits its excellent sealing performance under extreme weather conditions such as heavy rain or storms, ensuring the integrity and stability of the roof system. Furthermore, it significantly enhances the purlins' corrosion resistance, allowing them to maintain optimal performance even in harsh environments characterized by humidity, acidity, or alkalinity. Additionally, spray coating treatment can selecting appropriate coatings to impart anti-corrosion and aesthetic properties to the purlins. In conclusion, appropriate surface treatment methods play a crucial role in enhancing the anti-corrosion performance of purlins and extending their service life.

 

Surface Treatment of Purlins 3

 

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