Порошок цинковых хлопьев

Zinc flake powder is made from spherical zinc powder by dry ball milling with lubricants. Zinc flake powder has stronger covering, floating and shielding properties as well as better metallic luster than spherical zinc powder. Thus it is widely used in zinc-rich anticorrosive coatings and coating technologies such as Dacromet and Geomet for marine, automobile parts, pylons, guardrails etc.

Key word：Zinc powder Dacromet coating Anti-corrosion

Category：Zinc Flake Powder

Аксессуары：

Категория: Мощность цинковых чешуек

Подробности

Введение продукта

PRODUCT GRADES

Класс	D50 (мкм)	Screen Analysis 150 mesh	Non-volatile content (%)	Bulk density (g/cm³)	Hiding powder (cm²/g)
X720	20±2	＜2%	＞98%	0.9±0.1	＞4500
X715	15±1	＜2%	＞98%	0.8±0.1	＞5000
X713	13±1	＜1%	＞98%	0.6±0.1	＞5000
X705	5±1	＜1%	＞98%	0.4±0.1	＞6000

CHEMICAL PROPERTIES AND CHARACTERISTICS

1. Electrochemistry aspects:it can protect iron from corrision as Zinc is more active than iron and will react into solution in the
dielectric chemical reaction.
2. Sealing: due to the corrosive reactants of zinc powder, ZnCO3, Zn (OH)2 will deposited between the zinc powder particles and
fill the gaps between the pigments. It’s also non-conducting, thus playing a closed role in the coating.
3. Radiation: due to scale-like zinc powder parrelled on the surface of the coating film, they overlap and interlaced each others
which greatly decrease the chance of water and corrosive media penetrate through the coating, thus improving the corrosion
resistance of the coating

REMARKS：The flake structure has a significantly larger specific surface area than the spherical structure. Correspondingly, it’s more appopriate to use a higher content of binder and a lower pigment volume concentration (PVC) in the coating formulation to facilitate the adjustment of the coating properties to the respective field of application.