Jh15780 77% High Zinc Inorganic Silicate Coating Is Used for Coating Bridges and Steel Structures

• Usage: Anticorrosive Paint
• Color: Black
• Appearance: Liquid
• Method: Spray
• Components: Film Forming Matter
• Main Raw Material: Epoxy
• Model NO.: JH15780
• Level: Primer
• Certification: ISO14001, CCC, RoHS, ISO9001
• Substrate: Iron
• Expiration Date: 3 years
• Formation Mechanism: Non Conversion Type
• Packaging: Iron Drum
• Transport Package: Towing Raft
• Specification: 20kg/barrel
• Trademark: Spnal
• Origin: China
• Production Capacity: 50000tons / Year

Product Description

JH15780 High zinc inorganic silicate coating (Zinc 77%)
Description
This product is a solvent-based, two-component, self-curing inorganic zinc silicate coating with moderate zinc content. Airless spraying is used.
Recommended use
As a universal anti-corrosion primer in paint systems, it provides long-term protection for steel exposed to moderate to severe corrosion. According to SSPC-Paint 20 Type 1 Level 2.
Applications: Steel structure paint, coating on Bridges and structures, covering ports and docks
specification

Component weight ratio	4.2:5.8
Volume ratio of non-volatile material	62±2%
Specific gravity	2.3 kg/l
Refer to dry film thickness	50 micron
Flash point	14ºC
VOC content in mixed products	471 g/l
Application period 20ºC	4 hours
Theoretical covering power	12 m2 / L 50 microns
Film forming time	16 hours
Shelf life	12 months

FUXI ® ZINC PAINT
 
Zinc powder is the most important electrochemical anticorrosive pigment. A primer made with a large amount of zinc powder is called a high zinc primer. High zinc paint is divided into high zinc inorganic primer with silicate as the base material and high zinc epoxy primer with epoxy resin as the base material. Compared with other metals, zinc has its own unique properties. It is lighter than iron and has good ductility. It can fuse with iron. The most important thing is its electrochemical activity. Its standard electrode potential is -0.76V, which is more reactive than iron (-0.44V). High purity zinc powder that can be melted and refined into fine particles,
 
 
When the coating is corroded, zinc powder is corroded first as the anode, and the steel matrix is the protected cathode. Zinc, as the oxidation product formed by sacrificial anode, has a sealing effect on the coating, which can enhance the protection of the coating on the substrate. In coatings with higher zinc content, zinc powder is gradually consumed in the protection process, but at a slow rate. The formation of corrosion products reduces the potential difference between the coating and the substrate. When the paint film is damaged, the new zinc metal is exposed, and the potential difference immediately increases, resulting in strong cathodic protection. Therefore, rust of zinc primer will not spread due to damage to the environment.