Home > News > Industry News

Pretreatment is the Key to Long-Term Corrosion-Resistant Powder Coatings

2021-07-05

Pretreatment is the key to long-term corrosion-resistant powder coatings - resistance shortcut also extends the life of decorative impact.

There are many powder coatings available to provide durable, protective, corrosion resistant surfaces. Environment

The most popular corrosion-resistant decorative powder coatings are classified into several categories based on their basic formulations: epoxy, polyester, epoxy polyester blends and fluoropolymers. If you understand their advantages and apply them to end use, each method can maximize corrosion resistance and long-term durability.
When we talk about pretreatment, we usually mean sandblasting, chemical conversion or both. aluminium There's a lot of chemical conversion there, but we use zirconium, iron phosphate and zinc phosphate. In order to achieve long-lasting corrosion resistance, we recommend that we use the internal six stage zinc phosphate process for all ferrous substrates and the six stage zirconium process for all non-ferrous substrates. Therefore, when it comes to corrosion resistance, the preparation of substrate and the pretreatment of powder coating are as important as or more important than the coating itself. Pretreatment is essential to ensure product life and excellent appearance.