This two-part product is designed based on epoxy resin and polyamide hardener, and due to the high percentage of zinc powder in the paint, it protects the metal surface by cathodic protection against corrosive factors. This primer has a good drying speed and is compatible with a wide range of middle and top colors. It is also possible to use this primer on surfaces immersed in water.
| Properties | |
|---|---|
| components | two parts |
| gloss | semi-opaque |
| density | 0.1 ± 2.60 |
| Fam | Gray |
| Mixing ratio of components A/B by weight | 8/1 |
| Solids percentage | 2 ± 62 |
| Dry film thickness | 70 µm |
| coverage | 7.8 m2/litr |
| Dry film thickness | 7 days |
| Deep drying | 8 – 12 hours |
| Surface drying | 2 – 4 hours |
| Surface temperature | 25 c |
| Storage period | 12 months |
| Gel time | 4 – 6 hours |
| flash point | 35 C |
The above information is based on the working temperature of 25 degrees.
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Products Specifications
This two-part product is designed based on epoxy resin and polyamide hardener, and due to the high percentage of zinc powder in the paint, it protects the metal surface by cathodic protection against corrosive factors. This primer has a good drying speed and is compatible with a wide range of middle and top colors. It is also possible to use this primer on surfaces immersed in water.
When a small defect occurs on the last coating on the metal surface, zinc-rich epoxy primers perform their duties to prevent corrosion and also interrupt the electrochemical reactions based on corrosion. The grade of zinc-rich epoxy primers depends on the purity of zinc materials and the electrical conduction process between the metal surface and zinc particles, and most importantly, the amount of moisture in the environment. Due to the fact that the zinc material in the primer has anodic properties, but the same materials become cathodic in contact with iron surfaces. Finally, when the zinc particles turn into zinc oxide, that is the point at which the sacrificial protection has ended.
Some of the unique features of this product are : Excellent anti-corrosion primer | Very good chemical resistance | Appropriate difficulty | Heat resistance up to 120 degrees
| Celsius Excellent wear resistance | Resistant to water and moisture | Excellent adhesion on steel surfaces.
Application
This coating has a very high ability and ability to protect all kinds of structures and tools, which has made this coating to be used in many cases in the metal industry. In the following, we will mention some of the uses of this coating :
- Protection of all types of metal structures
- Protection of all types of machinery
- External surfaces of all types of tanks for protection
- Protection of all types of pipes
- Application of zinc-rich epoxy primer coating in refineries
- Protection of the ship’s deck, body, water intake platforms and…
How to use
Surface preparation : The desired surface must be free from any pollution, for this purpose, methods such as applying wind pressure, washing with detergents and thinners can be used. Then do blasting (rust removal) on the surface according to the standard (SSPC-SP10) up to Sa2.5-3. After removing the rust, remove the resulting particles from the surface with air pressure and dry completely. After one hour of surface preparation, apply the primer.
How to use : The following devices can be used to apply this color :
- Spray with air: (pressure 3-4 atmospheres) nozzle opening 1.6-1.8 mm
- Airless spray: (pressure 6-7 atmospheres) nozzle opening 0.43-0.53mm
- Roller
- brush (for small surfaces)
Packing
Romolo ionized zinc rich epoxy primer paint is produced and supplied in 20kg buckets.
