There are many different kinds of dacromet anti-corrosion coating liquids on the market, some dacromet liquids are not up to standard due to substandard production process, so the product quality is not up to standard.
So how should we choose? The following editor will introduce 2 methods for you to distinguish the pros and cons of Dacromet coating solution:
Dacromet coating solution is a water-based coating solution. Generally, in the Dacromet anti-corrosion coating solution of flake zinc powder, a small amount of metal powder will precipitate at the bottom of the container.
1, washing method
Take the precipitated metal powder and put it into a beaker, add 400ml of deionized water, stir it evenly with a glass, and let it stand for 30 minutes. If there is little sediment at the bottom of the water and most of the metal powder is still suspended in the water, it is good. Dacromet anti-corrosion coating liquid; if there is a large amount of spherical powder or cake powder precipitated, and it is not easy to coat, it is inferior Dacromet coating liquid.
2, observation method
Use a microscope to observe the zinc powder that precipitates at the bottom of the cup after washing. Some flake zinc powder will precipitate quickly during water washing. Twist the spherical powder with your hands and it will feel smooth. This zinc powder is used to reach Cromet or Dacromet coatings are not acceptable.