Product name: Epoxy Zinc-Rich Primer Coat
Product introduction
Epoxy zinc-rich primer is a two-component primer coat with excellent cathodic protection, excellent anti-corrosion and wear resistance, strong adhesion to steel surfaces, and good matching to a variety of topcoats.
Application
As a primer on sandblasted steel, epoxy zinc-rich primers can be used in combination with high-performance paints to further improve corrosion resistance. Mainly used as primer for steel surface of bridges, ships, petrochemical infrastructure, containers, steel structures, etc.
Product picture
|
|
Front | Back |
Application areas
|
|
|
|
Substations | Substations | Transmission line | Transmission line |
Construction technology
1. Basic treatment
Clean up the rust, weld coating, welding spatter, oil stain, dust and other debris on the coating part, so that the coated surface is free of rust, oil, water, and dust. Primer must be applied within 12 hours after rust removal.
2. Primer coating
When the primer is applied, the direction should be consistent and the connection should be neat. When painting, the principle of frequent movement and short distance is adopted to prevent too much paint from flowing down.
3. Topcoat coating
Prepare according to the ratio of A:B=10:1 and stir thoroughly to ensure consistent color, viscosity and consistency without sagging and brush lines. It should be stirred continuously during use, and the application method is the same as that of the primer.
Recommended solutions to increase service life
1.Cost-effective solution for moderately polluted environment
Epoxy zinc rich primer + Polyurethane topcoat
2.Cost-effective solution for heavily polluted environment
Epoxy zinc rich primer + Epoxy MIO micaceous iron oxide intermediate coat + Polyurethane topcoat
3.Platinum solution for normal and low-pollution environment
Epoxy zinc rich primer + Fluorocarbon topcoat
4.Cost-effective solution for moderately polluted and heavily polluted environments
Epoxy zinc rich primer + Epoxy MIO micaceous iron oxide intermediate coat + Fluorocarbon topcoat
Technical data sheet
No. | Test Items | Technical Requirements | Measured Values |
1 | non-volatile content | —— | 70% |
2 | Density，g/mL | —— | 1.590 |
3 | Content of metallic zinc in non-volatile content | —— | 82.50% |
4 | Bend test, mm | 2 | 2 |
5 | Impact resistance，cm | 50 | 50 |
6 | Adhesion, MPa | pull-off method≥5.0 | 7 |
7 | 600h salt fog resistance | No blistering, no rusting, no cracking, no peeling, etc. | Qualified |
8 | Fineness，μm | —— | 55 |
9 | Pendulum damping test | —— | 182s |
10 | Flexibility | —— | 1mm no cracks, no peeling |
11 | Humidity and heat resistance (240h) | No blistering, no rust, no cracking | Qualified |
12 | Pencil hardness | ≥2H | 3H |
13 | Adhesion (cross-cut method) | ≥ grade 1 | 0 |
14 | Dry film thickness μm | average thickness ≥40μm by brushing coat twice | 73.9 |
