As a key raw material for zinc-rich anti-corrosion coatings, zinc powder is widely used in the coating of large steel structures(such as steel construction, marine engineering facilities, bridges, pipelines) as well as ships, containers which are not suitable for hot-dipping and electroplating. Hunan New Welllink's zinc powder for zinc-rich anti-corrosion coatings can be applied both in the production of zinc-rich epoxy-coatings, and the production of the waterborne zinc-rich coatings. Due to its good dispersivity, less deposition and non-flocculation, the waterborne zinc-rich coatings have a dense and smooth surface with thin lacquer film of uniformity, high covering power efficiency, strong weather resistance and corrosion resistance.

Product introduction

¡ñ Chemical Name: Zinc Metal Powder¡¡¡¡

¡ñ Molecular formula: Zn ¡¡¡¡

¡ñ Molecular Weight: 65.38

Properties: 

Zinc powder is a gray metallic powder with regular spherical crystal form, density of 7.14g/cm3, melting point of 419¡ãC and boiling point of 907¡ãC. It is soluble in acid, alkali and ammonia, insoluble in water. With strong reducibility, it remains stable in dry air, but tends to agglomerate in moist air and generate basic zinc carbonate on the surface of the particles.

Features: 

Produced in uniquely designed metallurgical furnaces with advanced distillation technique, our products have the following remarkable characteristics:

¡ñ Low oxidization and high purity with the content of total zinc more than 99.5% and metallic zinc more than 97%.

¡ñ Low content of harmful substances (especially lead, cadmium, chromium, mercury and iron) which is less than 0.001 %, high activity, corrosion resistance, environmentally friendly.

¡ñ Particles of regular spherical structure with smooth crystal surface and less particles of irregular botryoidal and square-shaped structure.

Packaging: 

Conventional packaging of zinc powder are packed in iron drums or PP bags, both lined with plastic film inner bags (NW 50kg per drum or PP bag). Or packaging in flexible freight bags (NW 500/1000Kg per drum or PP bag). ln addition, we can use a variety of packaging in accordance with client's requirements.

Storage:

 zinc powder products should be stored in dry and ventilative warehouse away from acid, alkali and inflammables. Be cautious of water and fire as well as packaging damage and spillage in storage and transportation. Zinc powder should be used up within three months from the date of manufacture and resealed the unused product.

Based on ASTM D520-00 and ROHS standards for quality control, the quality of our zinc powder product is superior to the national standard (GB/ T6890-2012) and industrial standard (YS/T 1051-2015). The specification and standard of chemical components and particle size of zinc powder are as below (see chart 1)