一、What is "zinc-rich powder"?
- "Zinc-rich powder" refers to a type of anti-corrosion powder coating that contains a high proportion of metallic zinc powder.
二、Why add zinc powder?
- Zinc is preferentially corroded: a dense oxide zinc film is formed
- Steel is protected: extending service life
- Zinc powder can form a shielding layer structure within the coating, preventing corrosive media such as water, oxygen and salt from penetrating
三、Classification of zinc-rich powder coatings
四、The application of zinc-rich powder in powder coatings
- Marine engineering equipment
- Bridge and port facilities
- The pipes and the outer walls of the storage tanks
- Heavy-duty anti-corrosion industrial equipment
五、Formula and Performance Characteristics
- Main components: epoxy resin + curing agent + zinc powder + additives
- Appearance: Gray or silver-gray
- Film layer characteristics:High conductivity、Excellent anti-corrosion performance
六、Matters need attention
- The zinc powder should have good dispersibility to prevent settling and agglomeration
- The spraying equipment needs to be protected against wear and tear because the zinc powder particles are quite hard
- Store in a moisture-proof environment to prevent the zinc powder from oxidizing and deteriorating https://www.lekamaterial.com/ https://lekamaterial.en.alibaba.com/
